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Journal articles on the topic 'Silane compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 July 2024

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1

Sato, Masaki, Satoshi Mihara, Naoya Amino, Wilma K. Dierkes, and Anke Blume. "REACTIVITY STUDY OF MERCAPTO–SILANE AND SULFIDE–SILANE WITH POLYMER." Rubber Chemistry and Technology 93, no. 2 (2019): 319–45. http://dx.doi.org/10.5254/rct.19.82607.

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ABSTRACT Mercapto–silanes enable an improved silica dispersion state compared with sulfide–silanes in tire tread compounds, which causes a better balance of wet grip and rolling resistance. However, it also causes a higher Mooney viscosity and a shorter scorch time, which results in processing difficulties. The reason for this behavior is not clear. Because the already deeply investigated silica–silane reaction cannot explain the observed effects, the silane–polymer reaction was considered to be responsible and therefore has been evaluated in depth. The reaction between mercapto–silane or sulf

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2

Gross, Thoralf, Helmut Reinke, and Hartmut Oehme. "Geminal bis(hypersilyl) compounds the synthesis and structure of bis[tris(trimethylsilyl)silyl]silanes." Canadian Journal of Chemistry 78, no. 11 (2000): 1399–404. http://dx.doi.org/10.1139/v00-136.

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Protodesilylation of diphenylsilane with trifluoromethanesulfonic acid and subsequent reaction of the obtained bis(trifluoromethanesulfonyloxy)silane with tris(trimethylsilyl)silyllithium (1) (molar ratio 1:2) afforded bis[tris(trimethylsilyl)silyl]silane (8). Methyl-bis[tris(trimethylsilyl)silyl]silane (3) and phenyl-bis[tris(trimethylsilyl)silyl]silane (10) were obtained by coupling reactions of 1 with MeHSiCl2 or PhHSiCl2, respectively, (2:1). By treatment with HCBr3, the H-silanes 3, 8, and10 were converted into the bromosilanes [(Me3Si)3Si]2SiR1R2 (9: R1 = R2 = Br; 11: R1 = Me, R2 = Br; 1

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3

Bi, Weina, Christoph Goegelein, Martin Hoch, Joerg Kirchhoff, and Shugao Zhao. "Effect of Silane Coupling Agents on the Rheology, Dynamic and Mechanical Properties of Ethylene Propylene Diene Rubber/Calcium Carbonate Composites." Polymers 14, no. 16 (2022): 3393. http://dx.doi.org/10.3390/polym14163393.

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The effects of three trimethoxysilanes with different functional groups on the rheology, dynamic and mechanical properties of ethylene propylene diene rubber (EPDM)/calcium carbonate (CaCO3) composites were investigated respectively. The results showed that the addition of silane increased the value of MH and MH–ML of the compounds. Geniosil XL 33 silane decreased the shear modulus of the EPDM/CaCO3 compounds, and the bound rubber content increased slightly with the addition of vinyl trimethoxy silane (VTMS) and methylacryloxy-methyltrimethoxysilane (Geniosil XL 33) silane in the compounds. Th

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4

Luginsland, Hans-Detlef, Joachim Fröhlich, and André Wehmeier. "Influence of Different Silanes on the Reinforcement of Silica-Filled Rubber Compounds." Rubber Chemistry and Technology 75, no. 4 (2002): 563–79. http://dx.doi.org/10.5254/1.3544984.

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Abstract The silane modification of precipitated silica for rubber applications is state-of-the-art. Usually, bifunctional silanes are used to provide a silica-to-rubber coupling. In this paper, the general effect of the silane modification on the Payne-effect of silica-filled compounds (S-SBR/BR) is investigated by applying the Rubber Process Analyzer (RPA). For this purpose, the amount as well as the type of silane have been varied. The alkyl chain length of monofunctional silanes determines their hydrophobation efficiency and therefore influences the degree of the silica network, whereas bi

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5

Schmidt, Annika, Anna Krupp, Eva Rebecca Barth, and Carsten Strohmann. "Crystal structures and Hirshfeld surface analyses of bis(4,5-dihydrofuran-2-yl)dimethylsilane and (4,5-dihydrofuran-2-yl)(methyl)diphenylsilane." Acta Crystallographica Section E Crystallographic Communications 78, no. 1 (2022): 23–28. http://dx.doi.org/10.1107/s2056989021012548.

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The title compounds, C10H16O2Si (1) and C17H18OSi (2), are classified as dihydrofurylsilanes, which show great potential as building blocks for various functionalized silanes. They both crystallize in the space group P\overline{1} in the triclinic crystal system. Analyses of the Hirshfeld surfaces show packing-determining interactions for both compounds, resulting in a polymeric chain along the [011] for silane 1 and a layered-interconnected structure along the b-axis direction for silane 2.

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6

Linnemannstöns, Marvin, Beate Neumann, Hans-Georg Stammler, and Norbert W. Mitzel. "Synthesis and Structural Diversity of Triaryl(phenylethyl)silanes." Synthesis 52, no. 07 (2020): 1025–34. http://dx.doi.org/10.1055/s-0039-1690785.

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Starting from trichloro(phenylethyl)silane, six differently fluorinated triaryl(phenylethyl)silanes were synthesized by salt elimination reactions and their structures were determined by X-ray diffraction analysis. Tris(pentafluorophenyl)(phenylethyl)silane reveals a folded structure due to intramolecular π-stacking interactions, while those with a lower degree of fluorination show either intermolecular π-stacking or no interplay between the aryl groups. A similar folded structure was observed for (4-methylphenethyl)tris(pentafluorophenyl)silane and [2-(naphth-2-yl)ethyl]tris(pentafluorophenyl

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7

Lis, Barbara, Magdalena Woźniak, Tomasz Krystofiak, and Izabela Ratajczak. "Effect of accelerated aging on the color changes of wood treated with eco-friendly formulations based on propolis and silicon compounds." BioResources 15, no. 2 (2020): 3667–77. http://dx.doi.org/10.15376/biores.15.2.3667-3677.

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The aim of this work was to determine the effect of propolis extract and propolis-silane formulations on the color of wood. Additionally, the aim was to assess the influence of accelerated aging (water leaching and UV+IR radiation) on the color change of the treated wood. Scots pine wood was treated with the ethanolic extract of propolis and two propolis-silane formulations. The first formulation contained the propolis extract and silanes, 3-(trimethoxysilyl)propyl methacrylate, and tetraethyl orthosilicate. The second formulation comprised propolis extract, vinyltrimethoxysilane, and tetraeth

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8

Kim, Sunkeun, Wilma K. Dierkes, Anke Blume, et al. "Plasma Polymerization of Precipitated Silica for Tire Application." Molecules 28, no. 18 (2023): 6646. http://dx.doi.org/10.3390/molecules28186646.

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Pre-treated silica with a plasma-deposited (PD) layer of polymerized precursors was tested concerning its compatibility with Natural Rubber (NR) and its influence on the processing of silica-silane compounds. The modification was performed in a tailor-made plasma reactor. The degree of deposition of the plasma-coated samples was analyzed by ThermoGravimetric Analysis (TGA). In addition, Diffuse Reflectance Infrared Fourier Transform spectroscopy (DRIFTs), X-ray Photoelectron Spectroscopy (XPS), and Transmission Electron Microscopy (TEM) were performed to identify the morphology of the deposite

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9

Lin, Chenchy, William L. Hergenrother, and Ashley S. Hilton. "Mooney Viscosity Stability and Polymer Filler Interactions in Silica Filled Rubbers." Rubber Chemistry and Technology 75, no. 2 (2002): 215–45. http://dx.doi.org/10.5254/1.3544974.

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Abstract The change in Mooney viscosity (ML1+4) with aging was followed for silica filled compounds containing various silanes and polar additives. Several mechanisms for the aging stability are postulated and evaluated through experimentation. The type of silane or polar additive used can cause the ML1+4 to increase or even decrease during aging. When bis(triethoxy silanes) are used in silica filled rubbers, the ML1+4 growth during aging is caused by hydrolysis. Silica-silica bridging was found to be responsible for the ML1+4 growth in rubber compounds containing a more thermally stable polys

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10

Fournier, Jean-Hugues, Xin Wang, and James D. Wuest. "Derivatives of tetraphenylmethane and tetraphenylsilane: Synthesis of new tetrahedral building blocks for molecular construction." Canadian Journal of Chemistry 81, no. 5 (2003): 376–80. http://dx.doi.org/10.1139/v03-056.

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Useful derivatives of tetraphenylmethane and tetraphenylsilane have been synthesized by efficient methods that give crystalline products without chromatographic purification. New compounds include tetrakis(4-hydroxyphenyl)methane (21), tetrakis(4-formylphenyl)methane (22), tetrakis[(4-hydroxymethyl)phenyl]methane (23), tetrakis(4-bromophenyl)silane (24), tetrakis(4-iodophenyl)silane (25), tetrakis(4-hydroxyphenyl)silane (26), tetrakis[(4-hydroxymethyl)phenyl]silane (27), and tetrakis[(4-chloromethyl)phenyl]silane (28). These compounds are valuable precursors for the construction of complex mol

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11

Brząkalski, Dariusz, Robert E. Przekop, Miłosz Frydrych, et al. "Where ppm Quantities of Silsesquioxanes Make a Difference—Silanes and Cage Siloxanes as TiO2 Dispersants and Stabilizers for Pigmented Epoxy Resins." Materials 15, no. 2 (2022): 494. http://dx.doi.org/10.3390/ma15020494.

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In this work, silsesquioxane and spherosilicate compounds were assessed as novel organosilicon coupling agents for surface modification of TiO2 in a green process, and compared with their conventional silane counterparts. The surface-treated TiO2 particles were then applied in preparation of epoxy (EP) composites and the aspects of pigment dispersion, suspension stability, hiding power, as well as the composite mechanical and thermal properties were discussed. The studied compounds loading was between 0.005–0.015% (50–150 ppm) in respect to the bulk composite mass and resulted in increase of s

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12

Wang, Danling, Fujun Ren, Chenxi Zhu, et al. "HYBRID SILANE TECHNOLOGY IN SILICA-REINFORCED TREAD COMPOUND." Rubber Chemistry and Technology 92, no. 2 (2018): 310–25. http://dx.doi.org/10.5254/rct.18.81563.

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ABSTRACT The use of a silane coupling agent in silica-reinforced tread can effectively improve silica dispersion in the rubber matrix and strengthen the interfacial interaction between the rubber and filler; this is beneficial to the enhancement of tire grip under wet conditions and reduces tire rolling resistance. The monofunctional silane n-octyltriethoxysilane (OTES) can react with the silanol group of the silica surface and hence improve silica dispersion. It can also suppress silica reaggregation during tire processing. Two hybrid silanes, OTES and 3-mercaptopropylethoxy-bis(tridecyl-pent

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13

Woźniak, Magdalena, Przemysław Mania, Edward Roszyk, and Izabela Ratajczak. "Bending Strength of Wood Treated with Propolis Extract and Silicon Compounds." Materials 14, no. 4 (2021): 819. http://dx.doi.org/10.3390/ma14040819.

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The modification of wood and its treatment with various preservatives may affect its mechanical properties, hence the knowledge of the character changes in wood caused by impregnation is of great importance. Therefore, the aim of the research was to determine the effect of impregnation, with the propolis-silane preparation (EEP-MPTMOS/TEOS) consisting of the propolis extract (EEP) and silicon compounds: 3-(trimethoxysilyl)propyl methacrylate (MPTMOS) and tetraethoxysilane (TEOS), on the bending strength of treated wood. Moreover, in the study wood treated with components of the propolis-silane

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14

Schäfer, Annemarie, Manfred Weidenbruch, Siegfried Pohl, and Wolfgang Saak. "Siliciumverbindungen mit starken intramolekularen sterischen Wechselwirkungen, XLII / Silicon Compounds with Strong Intramolecular Steric Interactions, XLII." Zeitschrift für Naturforschung B 45, no. 10 (1990): 1363–68. http://dx.doi.org/10.1515/znb-1990-1004.

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The reactions of alkali metal 2,4,6-tri-tert-butylphenoxides with trichlorosilane and silicon tetrachloride give the bis(2,4,6-tri-tert-butylphenoxy)silanes 3 and 4. Treatment of 3 and 4 with methanol in the presence of ethyldiisopropylamine yields the methoxy derivatives (ArO)2Si(OMe)Cl (5) and (ArO)2Si(OMe)H (6). Tris(2,4,6-triisopropylphenylthio)silane (9) and tris(2,4,6-tri-tert-butylphenylthio)silane (10) are formed by a similar route. The X-ray structure analysis of the extremely crowded compound 10 reveals no significant deviations from the properties of sterically less hindered arylthi

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15

Hernández, Luis González, Luis M. Ibarra Rueda, and Celia Chamorro Antón. "Magnesium Silicate Filler in Rubber Tread Compounds." Rubber Chemistry and Technology 60, no. 4 (1987): 606–17. http://dx.doi.org/10.5254/1.3536145.

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Abstract The natural magnesium silicate, sepiolite (trade name Pansil), can partially substitute (up to 30%) for carbon black without important losses in physical properties and occasionally can improve them. In the NR-based compounds, as the substitution takes place, vulcanization times and Mooney viscosities decrease. Tear and abrasion resistances are lower. The same effects are observed in the SBR-based compounds, though in this case, the addition of a silane coupling agent (Silane A-189) counteracts the negative effects of the sepiolite, and the obtained values are clearly better than thos

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16

Nillawong, Manuchet, Pongdhorn Sae-Oui, and Chakrit Sirisinha. "Influences of Coagent Hybrid Ratios and Silanes on Viscoelastic Properties of Silica-Filled HNBR." Advanced Materials Research 747 (August 2013): 564–67. http://dx.doi.org/10.4028/www.scientific.net/amr.747.564.

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Silica filled HNBR compounds were prepared, and modified with 2 different silanes, namely, mercapto silane (TESPT) and vinyl silane (VTEO). Because the HNBR was cured with peroxide, the 2 coagents (TRIM and ZDA) were used simultaneously as a hybrid system for a purpose of cure efficiency enhancement. Various composition ratios of TRIM to ZDA were used in association with 2 different silanes. Results of viscoelastic properties, as investigated by RPA2000 via oscillatory shear flow, suggest the different suitability of coagent hybrid ratio in the system with different silanes. Due to the release

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17

da Costa, Marlla Vallerius, Cláudia Trindade Oliveira, Jean Pierre Bonino, Tiago Lemos Menezes, Célia Fraga Malfatti, and Iduvirges Lourdes Müller. "Influence of Silane Films in the Zinc Coating Post-Treatment." Materials Science Forum 660-661 (October 2010): 215–20. http://dx.doi.org/10.4028/www.scientific.net/msf.660-661.215.

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The sol-gel process based on silanes precursors appeared in recent years as a strong alternative for post-treatment to provide an optimization of the protective efficacy of zinc. Moreover, this process has been used to replace chemical chromating conversion based on hexavalent chromium. The silane films are hybrid compounds that provide characteristics of both polymeric materials, such as flexibility and functional compatibility, and ceramic materials, such as high strength and durability. The present work aimed to evaluate the influence of silane films obtained by dip-coating, on the characte

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18

Kaewsakul, W., K. Sahakaro, W. K. Dierkes, and J. W. M. Noordermeer. "OPTIMIZATION OF MIXING CONDITIONS FOR SILICA-REINFORCED NATURAL RUBBER TIRE TREAD COMPOUNDS." Rubber Chemistry and Technology 85, no. 2 (2012): 277–94. http://dx.doi.org/10.5254/rct.12.88935.

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Abstract The dump temperature and mixing interval between rubber, silica, and silane coupling agent for silica-filled natural rubber (NR) tire tread compounds using bis-triethoxysilylpropyl tetrasulfide (TESPT) as silane were optimized. The dump temperature turns out to be the key parameter governing the properties of the silica-filled NR compounds. The increase in viscosity of the compounds by changing the dump temperature from 100 to 150 °C indicates that inevitably some cross-linking of NR occurs by sulfur contained in TESPT, simultaneous with the silanization reaction between silica and si

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19

Siriwong, Chomsri, Pongdhorn Sea-Oui, and Chakrit Sirisinha. "Comparison of Coupling Effectiveness among Amino-, Chloro-, and Mercapto Silanes in Chloroprene Rubber." Advanced Materials Research 747 (August 2013): 530–33. http://dx.doi.org/10.4028/www.scientific.net/amr.747.530.

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The present work focuses mainly on the uses of silane coupling agents in chloroprene rubber (CR) reinforced with precipitated silica (PSi). Grafting of organoalkoxysilane onto surfaces of PSi was conducted, and the characteristics of surface-modified PSi were determined by BET technique, light-scattering particle size analysis, DRIFT and 29Si NMR spectroscopy. The 3 types of silane coupling agents used in this work were as follows: 3-aminopropyl triethoxysilane (APTES), 3-chloropropyl triethoxysilane (CPTES) and bis (3-triethoxysilylpropyl) tetrasulfide (TESPT). Processability of compounds and

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20

Rattanapan, Apaipan, Pornsri Sapsrithong, and Surakit Tuampoemsab. "The Effect of Silane Coupling Agent on the Properties of Natural Rubber Filled with Waste Silicon Carbide." Key Engineering Materials 737 (June 2017): 236–41. http://dx.doi.org/10.4028/www.scientific.net/kem.737.236.

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The effect of a silane coupling on curing characteristics, mechanical properties, abrasion behavior and swelling behavior of waste silicon carbide filled natural rubber compounds was investigated in the concentration 3%, 6%, 9%, 12% and 15% by weight of the particles. The waste silicon carbide content in this study was fixed at 30 phr in order to reveal the influence of silane-69 used to modify silicon carbide. The rubber compounds were prepared using a laboratory two roll mill with temperature maintained at 50°C. The curing characteristics of the composites were determined and the composites

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21

Lin, Chenchy J., W. L. Hergenrother, E. Alexanian, and G. G. A. Böhm. "On the Filler Flocculation in Silica-Filled Rubbers Part I. Quantifying and Tracking the Filler Flocculation and Polymer-Filler Interactions in the Unvulcanized Rubber Compounds." Rubber Chemistry and Technology 75, no. 5 (2002): 865–90. http://dx.doi.org/10.5254/1.3547689.

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Abstract Filler flocculation was followed for silica filled compounds containing various alkoxy silanes and non-silane type polar additives. The methodology employed in this paper permitted a quantitative characterization of filler flocculation and polymer-filler interactions after heating the compound under conditions that simulated vulcanization. With the addition of trialkoxy silanes, the reduction of filler flocculation and the degree of polymer-filler interactions were found to depend on the type and the concentration of silane added, and on the mixing drop temperature (Td) used. Greater

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22

Sridharan, Harini, Abhilash Guha, Sanjay Bhattacharyya, Anil K. Bhowmick, and R. Mukhopadhyay. "EFFECT OF SILICA LOADING AND COUPLING AGENT ON WEAR AND FATIGUE PROPERTIES OF A TREAD COMPOUND." Rubber Chemistry and Technology 92, no. 2 (2018): 326–49. http://dx.doi.org/10.5254/rct.18.81570.

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ABSTRACT The effects of highly dispersible silica and the nature of silane in a tire tread cap compound were studied with particular reference to dynamic mechanical properties, abrasion resistance, side force coefficient, and fatigue crack growth (FCG) properties. The rubber matrix chosen was a blend of solution grade styrene butadiene rubber and polybutadiene rubber. Six different loadings of silica were used. Bistriethoxysilylpropyltetrasulfide (S) was taken as the coupling agent. In addition, the potential of two new generation silanes, 3-octanoylthio-1-propyltriethoxysilane (N) and 3-merca

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23

Govindaswamy, Padavattan, Emiko Wada, Hiroyuki Kono, Toshiya Uozumi, and Hideo Funabashi. "Propylene Polymerization Performance with Ziegler-Natta Catalysts Combined with U-Donor and T01 Donor as External Donor." Catalysts 12, no. 8 (2022): 864. http://dx.doi.org/10.3390/catal12080864.

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In propylene (C3) polymerization with Ziegler-Natta catalyst, not only internal donor but also external donor is very important to make isotactic polypropylene (PP) with higher yield. Most propylene-based polymers have been commercially produced with Ziegler-Natta catalysts combined with dialkyl-dialkoxy silane compounds (R2Si(OR)2) such as C-donor, P-donor, and D-donor as external donors. In this paper, we will introduce the propylene polymerization performance with aminosilane compounds, i.e., diethylamino triethoxy silane (U-donor) and bis(ethylamino) di-cyclopentyl silane (T01 donor), as e

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24

Ryu, Gyeongchan, Donghyuk Kim, Sanghoon Song, Kiwon Hwang, Byungkyu Ahn, and Wonho Kim. "Effect of Epoxide Content on the Vulcanizate Structure of Silica-Filled Epoxidized Natural Rubber (ENR) Compounds." Polymers 13, no. 11 (2021): 1862. http://dx.doi.org/10.3390/polym13111862.

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The demand for truck–bus radial (TBR) tires with enhanced fuel efficiency has grown in recent years. Many studies have investigated silica-filled natural rubber (NR) compounds to address these needs. However, silica-filled compounds offer inferior abrasion resistance compared to carbon black-filled compounds. Further, the use of NR as a base rubber can hinder silanization and coupling reactions due to interference by proteins and lipids. Improved silica dispersion be achieved without the use of a silane coupling agent by introducing epoxide groups to NR, which serve as silica-affinitive functi

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25

Xian, Xiaochao, Chenglong Nai, Lixin Li, and Shuo Zhao. "The formation process of Zr-doped silane film on carbon steel during immersing in Zr(NO3)4/silane mixed solutions." Anti-Corrosion Methods and Materials 64, no. 1 (2017): 1–9. http://dx.doi.org/10.1108/acmm-12-2015-1627.

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Purpose Immersion is one of the key steps during the preparation of silane-based hybrid films, which has important effects on the performance of films after curing. In this paper, the formation process of Zr-doped silane film (i.e. the adsorption of silane and deposition of zirconium compounds) on carbon steel immersed in Zr(NO3)4/silane mixed solutions was investigated. Design/methodology/approach The method of in situ monitoring the open circuit potential of a two-electrode system, consisting of carbon steel and saturated calomel electrode, was used. The effects of immersion conditions (i.e.

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26

Shim, Jae Hun, Jae Hun Choi, Jung Hiuk Joo, and Jin San Yoon. "Influence of Silicate Surface Modification on Morphology and Mechanical Properties of Nylon6/Clay Nanocomposites." Key Engineering Materials 334-335 (March 2007): 877–80. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.877.

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A new method was attempted to improve the interaction between nylon 6 with a commercially available organoclay, Cloisite®25A (C25A) through modification of C25A with 3-aminopropyltriethoxy silane, 3-(trimethoxysilyl)propyl methacrylate, 3-(glycidoxypropyl) trimethoxysilane and 3-isocyanate propyltriethoxy silane. C25A and C25A modified with the silane compounds(TFC) were melt mixed with nylon 6. X-Ray diffraction and transmission electron microscopy images revealed that all the TFC layers were fully exfoliated in nylon 6 matrix irrespectively of the type of the silane compounds used for the mo

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27

Kaewsakul, W., K. Sahakaro, W. K. Dierkes, and J. W. M. Noordermeer. "OPTIMIZATION OF RUBBER FORMULATION FOR SILICA-REINFORCED NATURAL RUBBER COMPOUNDS." Rubber Chemistry and Technology 86, no. 2 (2013): 313–29. http://dx.doi.org/10.5254/rct.13.87970.

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ABSTRACT The rubber formulation plays a significant role in the properties of NR compounds filled with silica. In this work, the influences of various silicas, silane coupling agents, and diphenylguanidine (DPG) on the properties of compounds and vulcanizates—that is, cure characteristics, Mooney viscosity, flocculation kinetics, bound rubber content, Payne effect, tan δ at 60°C, tensile properties, and tear properties—are investigated. The results demonstrate that compound viscosity and curing behavior, as well as vulcanizate properties of the silica-filled NR, are much improved by incorporat

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28

Bleckmann, P., U. Englich, U. Hermann, et al. "Synthesis and Reactivity of Novel Bis(stannyl)silanes." Zeitschrift für Naturforschung B 54, no. 9 (1999): 1188–96. http://dx.doi.org/10.1515/znb-1999-0916.

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Bis(stannyl)silanes of types R3Sn-SiR′2-SnR3 and R2(H)Sn-SiR′2-Sn(H)R2 with R′ being methyl, phenyl, iso-propyl or terf-butyl have been synthesized by treatment of difunctionalized diorganosilanes with alkali stannides (R = Me, tBu; R′= Me, iPr; 1 - 6, 8 ) or with triphenyltin chloride and magnesium (R = Ph; R′ = Me, iPh;Pr; 7, 9). Me3Sn-SitBu2-SnMe3 4, was halogenated using SnCl4, to yield the bis(chlorostannyl)silane 11. The reaction of bis(stannyl)diorganosilanes R3SnSiR′SnR3 with catalytic amounts of Pd(PPh3)4 resulted in unexpected rearrangements under formation of the silyldistannanes R3

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29

Beaudry, R. M., and S. J. Kays. "Effects of Physical and Environmental Factors on the Release Kinetics of Ethylene from (2-Chloroethyl)phosphonic Acid and (2-Chloroethyl)-methylbis(phenylmethoxy)silane." Journal of the American Society for Horticultural Science 112, no. 2 (1987): 352–59. http://dx.doi.org/10.21273/jashs.112.2.352.

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Abstract Several environmental and physical factors affect the kinetics of ethylene release from (2-chloroethyDphosphonic acid and (2-chloroethyl)methylbis(phenylmethoxy)silane. Target surface chemistry exerted a strong influence on the evolution of ethylene from both compounds. Ethylene release from (2-chloroethyl)methylbis(phenylmethoxy) silane was slowed by glass and hydrophobic substances such as wax, surfactants in the spray solution, and high concentrations of the parent molecule, but not by epicuticular waxes on leaves. Ethylene evolution from (2-chloroethyl)phosphonic acid was inhibite

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30

Haase, Martin, and Uwe Klingebiel. "Tris(silyl)silyl-chlorsilane und P-halogenierte Silylphosphane / Tris(silyl)silyl-chlorosilanes and P-Halogenated Silylphosphanes." Zeitschrift für Naturforschung B 41, no. 6 (1986): 697–701. http://dx.doi.org/10.1515/znb-1986-0606.

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Lithium-tris(trimethylsilyl)silan reacts with chlorosilanes to give thermally stable compounds (1−3). The chlorination of 3 leads to the formation of the silane (Me3Si)3SiSi(Cl)(CMe3)2 4. The reaction of tetramethylpiperidinodihalogenophosphanes with (Me3Si)3SiSi(Cl)(Cme3)2 results in thermally stable compounds (Me3Si)3Si−P(Hal)N(CMe2)2(CH2)3, Hal = F (5). Cl (6), (Me3Si)3Si−P(Cl)N(CHMe2)2 (7) undergoes thermaly rearrangement via a silicon-chlorine exchange reaction to give (Me3Si)2Si(Cl)−P(SiMe3)N(CHMe2)2 (8). A byproduct − besides cyclic phosphanes - is the silylamine (Me3Si)2Si(Cl)N(CHMe2

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Maijan, Pattarawadee, Nitinart Saetung, and Wisut Kaewsakul. "Mixing and Comparative Properties of NR Compounds Filled with Different Types of Reinforcing Fillers." Solid State Phenomena 266 (October 2017): 172–76. http://dx.doi.org/10.4028/www.scientific.net/ssp.266.172.

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Mixing behaviors of the compounds filled with different reinforcing fillers were studied in correlation with compound and vulcanizate properties. Four filler systems were used including: 1) silica plus small amount of silane coupling agent; 2) carbon black; 3) pre-modified silica; and 4) silica+silane-carbon black mixed one. The results have shown that silica provides longer optimum cure time and shorter cure rate than carbon black due to accelerator adsorption on silica surface. In addition, owing to highly polar nature on silica surface the silica-based compounds show rather high viscosity,

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Ando, Eiji, Yoshiki Goto, Kazuhisa Morimoto, Katsuhiko Ariga, and Yoshio Okahata. "Frictional properties of monomolecular layers of silane compounds." Thin Solid Films 180, no. 1-2 (1989): 287–91. http://dx.doi.org/10.1016/0040-6090(89)90085-0.

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Bernal-Ortega, Pilar, Rafal Anyszka, Yoshihiro Morishita, Raffaele di Ronza, and Anke Blume. "Comparison between SBR Compounds Filled with In-Situ and Ex-Situ Silanized Silica." Polymers 13, no. 2 (2021): 281. http://dx.doi.org/10.3390/polym13020281.

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The main advantages of the use of silica instead of carbon black in rubber compounds are based on the use of a silane coupling agent. The use of a coupling agent to modify the silica surface improves the compatibility between the silica and the rubber. There are two different possibilities of modifying the silica surface by silane: ex-situ and in-situ. The present work studies the differences between these processes and how they affect the in-rubber properties of silica filled SBR compounds.

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Ahn, Byungkyu, Jong-Yeop Lee, Donghyuk Kim, Il Jin Kim, Sangwook Han, and Wonho Kim. "EFFECTS OF SILANE AGENTS AND CURING TEMPERATURES ON VULCANIZATE STRUCTURES." Rubber Chemistry and Technology 93, no. 2 (2019): 414–28. http://dx.doi.org/10.5254/rct.19.80445.

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ABSTRACT Silane coupling agents are commonly used in silica-filled rubber compounds to hydrophobize the silica surface and improve filler–rubber interaction. The coupling agent bis[3-(triethoxysilyl)propyl]tetrasulfide (TESPT) is the most widely used coupling agent. The tetrasulfide is more reactive than the disulfide in bis[3-(triethoxysilyl)propyl]disulfide (TESPD) due to its low decomposition energy, resulting in more coupling reaction with rubber molecules. Meanwhile, vulcanization temperature affects chemical networks. Polysulfide is vulnerable to heat, so it can be easily broken to form

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35

Woźniak, Magdalena, Patrycja Kwaśniewska-Sip, Michał Krueger, Edward Roszyk, and Izabela Ratajczak. "Chemical, Biological and Mechanical Characterization of Wood Treated with Propolis Extract and Silicon Compounds." Forests 11, no. 9 (2020): 907. http://dx.doi.org/10.3390/f11090907.

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The development of new bio-friendly alternatives for wood conservation is of great interest and necessary for environmental protection. In this paper, the preparations based on the propolis extract and silicon compounds were used as green wood preservatives. The wood was treated with 15% propolis extract (EEP) and two propolis-silane preparations, namely, EEP-VTMOS/TEOS (EEP with vinyltrimethoxysilane and tetraethyl orthosilicate) and EEP-MPTMOS/TEOS (EEP with 3-(trimethoxysilyl) propyl methacrylate and tetraethyl orthosilicate). The aim of the research was to determine the properties of treat

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Grillo, Fabiana, Francesco Canfarotta, Thomas Sean Bedwell, et al. "An Upgraded Protocol for the Silanisation of the Solid Phase for the Synthesis of Molecularly Imprinted Polymers." Chemosensors 11, no. 8 (2023): 437. http://dx.doi.org/10.3390/chemosensors11080437.

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The introduction of solid-phase imprinting has had a significant impact in the molecular imprinting field, mainly due to its advantage of orienting the template immobilisation, affinity separation of nanoMIPs and faster production time. To date, more than 600 documents on Google Scholar involve solid-phase synthesis, mostly relying on silanes mediating template immobilisation on the solid phase. Organosilanes are the most explored functionalisation compounds due to their straightforward use and ability to promote the binding of organic molecules to inorganic substrates. However, they also suff

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Gabino, Alessandra de Alencar Padua, Cléverson Fernandes Senra Gabriel, Ana Maria Furtado de Sousa, Cristina Russi Guimarães Furtado, and Bluma Guenther Soares. "Evaluation of silane effect as a coupling agent for metakaolin." Journal of Elastomers & Plastics 52, no. 7 (2019): 593–608. http://dx.doi.org/10.1177/0095244319877667.

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This study aimed at evaluating the coupling effect of silane Si69 bis(triethoxysilylpropyl)tetrasulfide in metakaolin (MK) in automobile tire tread compounds based on a styrene–butadiene rubber/butadiene rubber blend. A reference compound of a typical tread recipe, filled with silica and carbon black, was used as a reference due to the acknowledged effect of TESPT in silica incorporation in elastomers. A silica sample without silane was also prepared. Silica was then completely substituted by MK, producing two samples, with and without silane. The samples were tested for crosslink density, rhe

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Rassamee, Watcharin, Woothichai Thaijaroen, and Thirawudh Pongprayoon. "Mechanical and Dynamic Properties of Silica-Filled Rubber Compounds." Advanced Materials Research 781-784 (September 2013): 475–78. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.475.

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Natural rubber compound using different silicas, including unmodified silica, admicellar-modified silica and silica with silane coupling agent, were studied. The properties including cure characteristics, mechanical properties and dynamic properties were examined with the comparison of three compounds. The results show that cure characteristics of admicellar silica/rubber compound (Ad-Si/R) was shorter than those of unmodified silica/rubber compound (Un-Si/R) and silane coupling silica/rubber compound (Sil-Si/R). Mechanical properties of Ad-Si/R and Sil-Si/R were better than those of Un-Si/R.

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39

Shteinberg, Leon. "CATALYSIS BY PHOSPHORUS AND SILICON COMPOUNDS IN THE SYNTHESIS OF OXYNAPHTOIC ACID ANILIDES." Ukrainian Chemistry Journal 89, no. 1 (2023): 46–59. http://dx.doi.org/10.33609/2708-129x.89.01.2023.46-59.

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Catalysis of the acylation of aniline with 3-hydroxy-2-naphthoic, 1-hydroxy-2-naphthoic, 2-hydroxy-1-naphthoic and 1-hydroxy-4-naphthoic acids by phosphorus P(III) and silicon Si(IV) compounds leads to the formation anilides of the corresponding hydroxynaphthoic acids under mild conditions (ortho-xylene, 146.5–147 °C) in almost quantitative yield. Among P(III) phosphorus trichloride and tribromide; phosphorous, 1-hydroxyethylidene-diphosphonic, pyrophosphorous and metaphosphorous acids; trimethyl-, dimethyl- and diethylphosphites; phosph(III)azan proved to be active catalysts; a

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40

Jeong, Jae-Hyeuk, Chae-Woo Moon, Arkady I. Leonov, and Roderic P. Quirk. "Cure Kinetics for Silane Coupled Silica Filled SBR Compounds." Rubber Chemistry and Technology 75, no. 1 (2002): 93–109. http://dx.doi.org/10.5254/1.3547676.

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Abstract Vulcanization kinetics for silane-modified, silica-filled SBR has been investigated using the cure meter and swelling measurements to determine the crosslink density. The silane modifier was Si-69, bis(3-triethoxy-silylpropyl)tetrasulfane. To simulate the induction and curing periods as a function of temperature and compounding recipe, a three component kinetic model for curing was developed. The kinetic model consists of (a) curing in the bulk elastomer phase, (b) curing at the silica surface and (c) cross-phase curing between the bulk components and the silica surface. In order to d

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Ko, Jae Young, K. Prakashan, and Jin Kuk Kim. "New silane coupling agents for silica tire tread compounds." Journal of Elastomers & Plastics 44, no. 6 (2012): 549–62. http://dx.doi.org/10.1177/0095244312439489.

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42

Hagiwara, Toshiki, and Takamasa Fuchikami. "Difluoroalkylation of Carbonyl Compounds with (1,1-Difluoroalkyl)silane Derivatives." Synlett 1995, no. 07 (1995): 717–18. http://dx.doi.org/10.1055/s-1995-5070.

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Vasiliev, Aleksey N., Eugene Zlotnikov, Johannes G. Khinast, and Richard E. Riman. "Chemisorption of silane compounds on hydroxyapatites of various morphologies." Scripta Materialia 58, no. 12 (2008): 1039–42. http://dx.doi.org/10.1016/j.scriptamat.2007.12.014.

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Bolcu, Constantin, Dorina Modra, Gabriela Vlase, Nicolae Doca, Ciprian Mihali, and Titus Vlase. "Synthesis and thermal behavior of some diisocyanate–silane compounds." Journal of Thermal Analysis and Calorimetry 115, no. 1 (2013): 489–94. http://dx.doi.org/10.1007/s10973-013-3187-z.

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Gale, G. M. "Silane compounds in hot-water pipe and cable technology." Applied Organometallic Chemistry 2, no. 1 (1988): 17–31. http://dx.doi.org/10.1002/aoc.590020104.

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46

Cartasegna, S. "Silane-Grafted / Moisture-Curable Ethylene—Propylene Elastomers for the Cable Industry." Rubber Chemistry and Technology 59, no. 5 (1986): 722–39. http://dx.doi.org/10.5254/1.3538230.

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Abstract The present study has shown the capability of VTMOS grafting and moisture crosslinking of EP Elastomers. These capabilities are very large and have been shown to be dependent on various parameters. In EP copolymers, the crosslinking potential appears to be a function of the ethylene content, molecular weight, and molecular weight distribution. In the case of diene containing terpolymers, the process is shown to be limited by the diene content of the polymer through probable parasitic condensation reactions of grafted alkoxy silane. The good performance of the EP elastomers in silane-g

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47

Akiyama, Yoshikatsu, Masayuki Yamato, and Teruo Okano. "Preparation of Poly(N-isopropylacrylamide) Grafted Polydimethylsiloxane by Using Electron Beam Irradiation." Journal of Robotics and Mechatronics 25, no. 4 (2013): 631–36. http://dx.doi.org/10.20965/jrm.2013.p0631.

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A poly(N-isopropylacrylamide) (PIPAAm) grafted poly(dimethylsiloxane) (PDMS) surface was prepared as a temperature-responsive cell culture surface by using electron beam (EB) irradiation. Different chemical treatments to modify the bare PDMS surface were investigated for subsequent grafting of PIPAAm, and treatment conditions were optimized to prepare the temperature-responsive cell culture surface. The PDMS surface was initially activated to form silanol groups with conventional O2 plasma or hydrochloric acid (HCl) treatment. Activated PDMS surfaces were individually immobilized with three di

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Han, Sangwook, Bonyoung Gu, Sungwoo Kim, et al. "Effect of Sulfur Variation on the Vulcanizate Structure of Silica-Filled Styrene-Butadiene Rubber Compounds with a Sulfide–Silane Coupling Agent." Polymers 12, no. 12 (2020): 2815. http://dx.doi.org/10.3390/polym12122815.

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The vulcanizate structure of filled compounds is affected by filler–rubber interactions (FRI) and the chemical crosslink density (CCD) of the matrix rubber. In particular, in filled compounds using a silica–silane system, FRIs due to silica–rubber coupling are a major influencing factor for the vulcanizate structure and physical properties. In this study, the effect of sulfur variation on the vulcanizate structure of silica-filled solution styrene–butadiene rubber compounds using a sulfide–silane coupling agent was studied. The vulcanizate structure according to sulfur variation was quantitati

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Li, Li, Yun-Long Wei, and Li-Wen Xu. "Organosilicon-Mediated Organic Synthesis (SiMOS): A Personal Account." Synlett 31, no. 01 (2019): 21–34. http://dx.doi.org/10.1055/s-0039-1691496.

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The organosilicon-mediated organic synthesis (SiMOS) has attracted much attention over the recent decades. However, the use of organosilicon reagents with novel catalytic strategies remains to be explored. This Account summarizes our group’s progress mainly based on the application of a wide variety of organosilicon reagents, including allylic silanes, trifluoromethyl silane, acylsilanes, chlorosilanes, hydrosilanes, trimethylsilyldiazomethane, trimethylsiloxyfuran, silanols, α-trimethylsilylmethylacetate, and trimethylsilylcyanide, in catalysis and organic reactions. These transformations wer

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Xiong, Yun, Shenglai Yao, and Matthias Driess. "Coordination of N-Heterocyclic Carbene to H2SiX2 (X = Cl, OTf) and H3SiOTf (OTf = OSO2CF3): Synthesis of Donor-stabilized Parent Silylium Salts with Four- and Five-coordinate Silicon Atoms." Zeitschrift für Naturforschung B 68, no. 5-6 (2013): 445–52. http://dx.doi.org/10.5560/znb.2013-3057.

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The reactivity of the N-heterocyclic carbene (NHC) 1,3-bis(2,6-diisopropylphenyl)imidazol-2- ylidene towards dichlorosilane H2SiCl2, bis(trifluoromethanesulfonato)silane H2Si(OTf)2 (OTf = OSO2CF3), and silyl trifluoromethanesulfonate H3SiOTf has been investigated. It turned out that the coordination of the NHC ligand can occur stepwise to form the three neutral compounds (NHC)SiH2Cl2 (1), (NHC)2SiH2Cl2 (2), (NHC)SiH2(OTf)2 (3), as well as the two ion pairs [(NHC)SiH3]+(OTf-) (4) and [(NHC)2SiH3]+(OTf-) (5); the latter represent the first NHC adducts of the parent silylium cation (H3Si+). The m

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