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Journal articles on the topic '2-polybutadiene'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Roovers, Jacques, and Paul M. Toporowski. "Characteristic Ratio and Plateau Modulus of 1,2-Polybutadiene. A Comparison with Other Rubbers." Rubber Chemistry and Technology 63, no. 5 (1990): 734–46. http://dx.doi.org/10.5254/1.3538286.

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Abstract In the course of work on linear and ring polybutadienes with 62% 1,2 units, a number of discrepancies were noted with data on polybutadienes of various microstructure available in the literature. For example, GNο=870 kPa for our 62% 1,2-polybutadiene. This is larger than GNο=730 kPa for a 56% 1,2-polybutadiene and GNο=550 kPa for a 78% 1,2-polybutadiene sample. The cis : trans ratio of our 62% 1,2-polybutadiene, prepared with potassium counterion, is 1 : 4, On the other hand, the cis : trans ratio of 62% 1,2-polybutadiene prepared with a modified Li catalyst is estimated to be 1 : 2.

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2

Pleska, Alexander, Iva Klichová, and Jindřich Pytela. "Grafting of Hydroxy-Terminated Polybutadiene with 2-Mercaptoethanol." Collection of Czechoslovak Chemical Communications 67, no. 12 (2002): 1899–910. http://dx.doi.org/10.1135/cccc20021899.

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A method for functionalization of hydroxy-terminated polybutadiene with 2-sulfanylethan-1-ol (2-mercaptoethanol) leading to a controlled increase in the OH functionality of the polymer was developed. The polybutadiene used contained about 65% of unsaturation in the form of 1,2-vinyl groups. The reaction was carried out without using volatile solvents. The radical addition of 2-sulfanylethan-1-ol on the polymer proceeded quantitatively and the products were free of the mercaptan odour. A series of functionalized polybutadienes were synthesized and characterized by their physical and chemical pr

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3

Zhang, Ming, Zhi Xiong Huang, and Min Xian Shi. "Quantum Chemistry Theoretical Studies on Molecular Structures of Polybutadiene." Advanced Materials Research 87-88 (December 2009): 130–33. http://dx.doi.org/10.4028/www.scientific.net/amr.87-88.130.

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The Density Function Theory (DFT) method are employed to study the geometries of the polybutadiene （C4H6）n（n=3，4，5）on the base of B3LYP/6-311+G in the paper. the polybutadiene have five isomers, including Cis-1，4-polybutadiene, Trans-1, 4-polybutadiene, Isotactic1, 2-polybutadiene, Syndiotactic1，2-polybutadiene, Atactic1, 2-polybutadiene. The molecular structures of each isomer were evaluated on the basis of single point energy with zero point vibration correction. The results show that the energies of polybutadiene varied with increase of molecular weight.

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4

Wang, Beibei, Heng Liu, Tao Tang та Xuequan Zhang. "cis-1,4 Selective Coordination Polymerization of 1,3-Butadiene and Copolymerization with Polar 2-(4-Methoxyphenyl)-1,3-butadiene by Acenaphthene-Based α-Diimine Cobalt Complexes Featuring Intra-Ligand π-π Stacking Interactions". Polymers 13, № 19 (2021): 3329. http://dx.doi.org/10.3390/polym13193329.

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Highly cis-1,4 selective (up to 98%) coordination–insertion polymerization of 1,3-butadiene (BD) has been achieved herein using acenaphthene-based α-diimine cobalt complexes. Due to the presence of intra-ligand π-π stacking interactions, the complexes revealed high thermostability, affording polybutadiene products in high yields. Moreover, all of the obtained polymers possessed a relatively narrow molecular weight distribution as well as high molecular weight (up to 92.2 × 104 Dalton). The molecular weights of the resultant polybutadienes could be finely tuned by varying polymerization paramet

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5

Antipov, Evgueni M., Evguenia A. Mushina, Manfred Stamm, and Erhard W. Fischer. "Structure of Polybutadienes Synthesized with a New Catalyst System, 2. Blends oftrans-andcis-1,4-Polybutadiene." Macromolecular Chemistry and Physics 202, no. 1 (2001): 73–81. http://dx.doi.org/10.1002/1521-3935(20010101)202:1<73::aid-macp73>3.0.co;2-3.

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6

Coquillat, M., J. Verdu, X. Colin, L. Audouin, and R. Nevière. "Thermal oxidation of polybutadiene. Part 2: Mechanistic and kinetic schemes for additive-free non-crosslinked polybutadiene." Polymer Degradation and Stability 92, no. 7 (2007): 1334–42. http://dx.doi.org/10.1016/j.polymdegradstab.2007.03.019.

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7

Mohamed Iyad Al, Naboulsi, Niculae Napoleon Antonescu, Alin Dinita, and Marius Morosanu. "Tribological Characterization of Some Elastomers Used at Progressive Cavity and Piston Pumps." MATEC Web of Conferences 318 (2020): 01016. http://dx.doi.org/10.1051/matecconf/202031801016.

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The progressive cavity pump (PCP) is a positive displacement pump, consisting of a polished helical-shaped rod (rotor) turning inside a helical elastomer (stator). PCP has many advantages, but the pump durability is manly limited by elastomer behavior. At piston pumps (PP) used for drilling mud piston has an elastomer sleeve that also limit the durability. Standards like ISO 15136.1 & 2 for pumps developed by manufactures and users’ committees provides requirements for design, quality design verification etc., but do not define specifically the elastomer for the stator or the metal used fo

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8

Babutan, Iulia, Leonard Ionut Atanase, and Ioan Botiz. "Self-Assembly of Lamellar/Micellar Block Copolymers Induced Through Their Rich Exposure to Various Solvent Vapors: An AFM Study." Materials 18, no. 8 (2025): 1759. https://doi.org/10.3390/ma18081759.

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In this work, we have employed an advanced method of solvent vapor annealing to expose spin-cast thin films made from various lamellar and micellar block copolymers to generous amounts of different types of solvent vapors, with the final goal of stimulating the films’ self-assembly into (hierarchically) ordered structures. As revealed by atomic force microscopy measurements, periodic lamellar nanostructures of molecular dimensions based on poly(4-vinylpyridine)-b-polybutadiene and poly(2-vinylpyridine)-b-polybutadiene, as well as micellar structures further packed into either (parallel) stripe

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9

Rozentsvet, V. A., D. M. Ulyanova, N. A. Sablina, R. V. Brunilin, and P. M. Tolstoy. "Synthesis of Low Molecular Weight Butadiene Polymers Using Cationic Catalytic Systems Based on Diethylaluminium Chloride." Кинетика и катализ 64, no. 1 (2023): 65–77. http://dx.doi.org/10.31857/s0453881123010069.

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Сationic polymerization of butadiene with the catalytic systems based on diethylaluminium chloride (AlEt2Cl) in combination with tertiary alkyl halides (AH), such as tert-butyl chloride, tert-butyl bromide and 2-chloro-2-methylbutane, is an effective method for obtaining fully soluble butadiene polymers at a industrially relevant temperature of 20°C. It is shown that, regardless of the nature of AH in the catalytic system, with an increase in the duration of the polymerization process of butadiene, the values of the weight-average molecular weight and polydispersity of the polymers significant

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10

Serrano, Myrna, William J. MacKnight, Edwin L. Thomas, and Julio M. Ottino. "Transport-morphology relationships in segmented polybutadiene polyurethanes: 2. Analysis." Polymer 28, no. 10 (1987): 1674–79. http://dx.doi.org/10.1016/0032-3861(87)90010-3.

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11

Mohammed, Issam A., and Govindarajan Sankar. "Synthesis, deblocking and cure reaction studies of secondary alcohol-blocked isocyanates." High Performance Polymers 23, no. 7 (2011): 535–41. http://dx.doi.org/10.1177/0954008311421833.

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A series of 1,3-dichloro-2-propanol-blocked diisocyanates, based on diisocyanates including 4,4′-methylene di(phenyl isocyanate), toluene-2,4-diisocyanate, isophorone diisocyanate and 1,6-diisocyanatohexane, were prepared and characterized thoroughly by Fourier transform infrared, 1 H-NMR, 13 C-NMR spectroscopic methods and elemental analysis (CHN). The blocking reaction of 1,3-dichloro 2-propanol with aromatic diisocyanates occurs faster than with the aliphatic isocyanates. The deblocking temperature of blocked isocyanates was determined by thermogravimetric analysis, differential scanning ca

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12

Lim, Y. "Functionalization of polybutadiene by rhodium(I)-catalyzed coupling with 2-vinylpyridines: introduction of pyridyl groups to phenyl-terminated polybutadiene." Polymer 41, no. 11 (2000): 4351–55. http://dx.doi.org/10.1016/s0032-3861(99)00617-5.

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13

Marciniec, Bogdan, Ewa Malecka, Jacek Gulinski, Monika Grundwald-Wyspianska, and Mariusz Lewandowski. "Functionalization vs. degradation of 1,4-polybutadiene by ruthenium complex catalyzed reaction with vinylsilanes." Canadian Journal of Chemistry 79, no. 5-6 (2001): 775–79. http://dx.doi.org/10.1139/v01-044.

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Polybutadiene (I) containing 91% of 1,4-(cis-trans) units and 9% of 1,2-units in the presence of vinyltriethoxysilane (II) and ruthenium catalysts RuCl2(PPh3)3 (III), RuHCl(CO)(PPh3)3 (IV), and [RuCl2(CO)3]2 (V) at 100-130°C undergoes functionalization and (or) partial degradation as an effect of competitive silylative coupling of =C-H and cross-metathesis of I with II. Significant degradation of I occurs at lower temperatures (100-110°C) (particularly when the process is carried out in air), but exclusive functionalization of I is observed at higher temperature (120-130°C) regardless of the a

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14

Weiss, Karin, and Kurt Hoffmann. "Untersuchungen von Polymerisations-und Metathesereaktionen, X. Mitt. [1] Polymerisation, Trimerisation und Metathese von Allenen und Heteroallenen mit reduziertem Phillips-Katalysator / Studies of Polymerisation and Metathesis Reactions, Part X [1] Polymerisation, Trimerisation and Metathesis of Allenes and Heteroallenes with Reduced Phillips Catalyst." Zeitschrift für Naturforschung B 42, no. 6 (1987): 769–73. http://dx.doi.org/10.1515/znb-1987-0621.

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Abstract The reduced Phillips Catalyst - a surface chromium(II) on silica - catalyses the polymerisation of the allene 1,2-butadiene to yield predominantly 1,2-polybutadiene, yields trimerisation products with isocyanates, and gives metathesis of 2 differently substituted carbodiimides.

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15

Takeuchi, Masaki, Takeshi Shiono, and Kazuo Soga. "Characterization of polybutadiene produced with CoBr2(PPh3)2-based catalysts." Macromolecular Rapid Communications 16, no. 5 (1995): 373–78. http://dx.doi.org/10.1002/marc.1995.030160505.

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16

Yang, Zhixiong, Haoyun Deng, Mengzhen Zhou, Encai Ou, and Weijian Xu. "1-(2-alkoxyethyl)piperidine as modifiers to obtain high vinyl polybutadiene." European Polymer Journal 223 (January 2025): 113645. https://doi.org/10.1016/j.eurpolymj.2024.113645.

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17

DAVORAS, E. M., R. DIAPER, A. DERVISSI, M. J. TORNARITIS, and A. G. COUTSOLELOS. "Comparative 1HNMR and UV-Visible Studies of Polyene Polymer Epoxidations Catalyzed by Iron(III), Manganese(III) and Chromium(III) Porphyrins." Journal of Porphyrins and Phthalocyanines 02, no. 01 (1998): 53–60. http://dx.doi.org/10.1002/(sici)1099-1409(199801/02)2:1<53::aid-jpp51>3.0.co;2-m.

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The catalytic epoxidation of cis-polybutadiene was studied in two-phase systems, CH 2 CI 2/ H 2 O and PhIO (solid)/ CH 2 Cl 2, using chlorochromium(III), chloromanganese(III) and chloroiron(III) tetraphenylporphyrin complexes as catalysts. Comparison of the catalytic activity of these three catalysts showed that the manganese porphyrin is the most suitable catalyst for this reaction. The results are based on reaction product ratios as determined by 1 H NMR . UV-Visible spectroscopy allowed monitoring of the metalloporphyrin evolution during the catalytic reaction.

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18

Hao, Xiu-Feng, Li-Ping Du, Hong-Guang Cai, Chun-Yu Zhang, Xue-Quan Zhang, and He-Xin Zhang. "Preparation of Superhydrophobic Cross-Linked Syndiotactic 1, 2-Polybutadiene Membranes by Electrospinning." Journal of Nanoscience and Nanotechnology 12, no. 10 (2012): 8077–80. http://dx.doi.org/10.1166/jnn.2012.6634.

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19

Ricci, G., M. Battistella, F. Bertini, and L. Porri. "1,2 Syndiotactic polybutadiene of controlled crystallinity by butadiene-isoprene copolymerization with CrCl 2 ·(dmpe) 2 -MAO." Polymer Bulletin 48, no. 1 (2002): 25–31. http://dx.doi.org/10.1007/s00289-002-0010-6.

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20

Babutan, Iulia, Otto Todor-Boer, Leonard Ionut Atanase, Adriana Vulpoi, and Ioan Botiz. "Self-Assembly of Block Copolymers in Thin Films Swollen-Rich in Solvent Vapors." Polymers 15, no. 8 (2023): 1900. http://dx.doi.org/10.3390/polym15081900.

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In this study we have employed a polymer processing method based on solvent vapor annealing in order to condense relatively large amounts of solvent vapors onto thin films of block copolymers and thus to promote their self-assembly into ordered nanostructures. As revealed by the atomic force microscopy, a periodic lamellar morphology of poly(2-vinylpyridine)-b-polybutadiene and an ordered morphology comprised of hexagonally-packed structures made of poly(2-vinylpyridine)-b-poly(cyclohexyl methacrylate) were both successfully generated on solid substrates for the first time.

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21

Sivaram, Swaminathan, and Vinod Kumar Upadhyay. "Synthesis of High –cis– Polybutadiene Using Cobalt (II)-2-Ethylhexoate Modified Triethylaluminum Catalyst." Journal of Macromolecular Science, Part A 29, sup1 (1992): 13–19. http://dx.doi.org/10.1080/10101329208054559.

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22

Cho, Bong-Sang, and Si-Tae Noh. "Thermal properties of polyurethane binder with 2-(ferrocenylpropyl)dimethylsilane-grafted hydroxyl-terminated polybutadiene." Journal of Applied Polymer Science 121, no. 6 (2011): 3560–68. http://dx.doi.org/10.1002/app.34151.

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23

Ghaieni, Hamid Reza, Saeed Tavangar, and Mohammad Moein Ebrahimzadeh Qhomi. "Simple correlations for calculating NHTPB enthalpy of formation through molecular structures." Multidiscipline Modeling in Materials and Structures 15, no. 1 (2019): 258–64. http://dx.doi.org/10.1108/mmms-04-2018-0074.

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Purpose The purpose of this paper is to present simple correlation for calculating nitrated hydroxyl-terminated polybutadiene (NHTPB) enthalpy of formation. Design/methodology/approach It uses multiple linear regression methods. Findings The proposed correlation has determination coefficient 0.96. The correlation has root mean square deviation and the average absolute deviations values 53.4 and 46.1 respectively. Originality/value The predictive power of correlation is checked by cross-validation method (R2=0.96, Q L O O 2 = 0.96 ).

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24

Glazyrin, A., V. Davletov, and Yu. Koksharova. "Studying of thermal degradation of cyclopropenoid servants 1,2-SPB." Bulletin of Science and Practice 1 (14), no. 286 (2017): 25–31. https://doi.org/10.5281/zenodo.244149.

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Using of the TGA (thermogravimetric analysis) and DSC (differential scanning calorimetry) methods thermal characteristics of cyclopropanoic derivants syndiotactic 1,2‑polybutadiene (1,2-SPB) are studied. The temperature of the polymer decomposition beginning and temperature of its destruction for 1 and 5% of tentative weight were defined. Also, changes in the mass of polymer when heating to 400 °C and heat effects of a destruction of cyclopropanoic polydiene are considered. Comparative assessment of thermal characteristics of syndiotactic polybutadiene in the environment of air and nitrogen is

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25

Biglova, Raisa, Rimma Sultanova, Tagir Yangirov, Vladimir Dokichev, and Gennady Zaikov. "Cu(OAc)2-2,4-Lut-ZnCl2 – Efficient Catalyst of Functionalization of Isobutylene Oligomers and 1,2-Polybutadiene with Methyldiazoacetate." Chemistry & Chemical Technology 5, no. 3 (2011): 273–76. http://dx.doi.org/10.23939/chcht05.03.273.

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26

Montella, G., A. P. Purdy, S. B. Qadri, N. Bhattarai, R. M. Stroud, and C. M. Roland. "DISPERSION OF NANOCLAY IN 1,4-POLYBUTADIENE." Rubber Chemistry and Technology 91, no. 4 (2018): 633–43. http://dx.doi.org/10.5254/rct.18.81567.

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ABSTRACT Two approaches to obtaining better dispersion of organo-modified nanoclay in high-molecular weight polybutadiene were assessed: (1) chemical modification of the polymer to increase its affinity for the silicate layers and (2) increasing the stretching component of the flow field used to mix the materials. As expected, the degree of dispersion, that is, the extent of intercalation of the polymer into the clay galleries and amount of exfoliation of the clay layers, increased with closer matching of the respective solubility parameters of the components. The efficiency of mechanical mixi

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27

Surivet, Francoise, Thanh My Lam, Jean Pierre Pascault, and Christian Mai. "Organic-inorganic hybrid materials. 2. Compared structures of polydimethylsiloxane and hydrogenated polybutadiene based ceramers." Macromolecules 25, no. 21 (1992): 5742–51. http://dx.doi.org/10.1021/ma00047a027.

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28

Shah, N., J. E. Sax, and J. M. Ottino. "Influence of morphology on the transport properties of polystyrene/polybutadiene blends: 2. Modelling results." Polymer 26, no. 8 (1985): 1239–46. http://dx.doi.org/10.1016/0032-3861(85)90260-5.

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29

Zhong, Chongqi, Xiaowen Li, Zhengshui Hu, and Xueming Tang. "SYNTHESIS OF 1,2-POLYBUTADIENE WITH WCl4(OR)2-Al(i-Bu)3 CATALYST SYSTEM." Chinese Journal of Applied Chemistry 4, no. 3 (1987): 17–21. http://dx.doi.org/10.3724/j.issn.1000-0518.1987.3.17.

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30

Zhong, Chongqi, Xiaowen Li, Zhengshui Hu, and Xueming Tang. "SYNTHESIS OF 1,2-POLYBUTADIENE WITH WCl4(OR)2-Al(i-Bu)3 CATALYST SYSTEM." Chinese Journal of Applied Chemistry 4, no. 3 (1987): 17–21. http://dx.doi.org/10.3724/j.issn.1000-0518.1987.3.1721.

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31

Tuncev, D. V., Z. G. Sattarova, and I. M. Galiev. "Multi-Layer Wood-Polymer Composite." Solid State Phenomena 265 (September 2017): 47–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.47.

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The article describes a new multilayer wood-polymer composite material, the outer layer of which comprises wood flour, polypropylene, polybutadiene, concentrated dye. The inner layer comprises longwise oriented wood particles of the fibrous type of 2-10 mm and the recycled thermoplastic polymer. An experimental complex used to identify structural and operational characteristics of the composite material was presented. The experimental study of the mechanical properties of the product hardness, abrasion, cross-breaking strength were conducted. The results of the tests selected and validated the

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32

Chen, Jian, Ya Wen, Lingyi Zeng, et al. "Room-Temperature Solid-State UV Cross-Linkable Vitrimer-like Polymers for Additive Manufacturing." Polymers 14, no. 11 (2022): 2203. http://dx.doi.org/10.3390/polym14112203.

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In this paper, a UV cross-linkable vitrimer-like polymer, ureidopyrimidinone functionalized telechelic polybutadiene, is reported. It is synthesized in two steps. First, 2(6-isocyanatohexylaminocarbonylamino)-6-methyl-4[1H]-pyrimidinone (UPy-NCO) reacts with hydroxy-functionalized polybutadiene (HTPB) to obtain UPy-HTPB-UPy, and then the resulted UPy-HTPB-UPy is cross-linked under 365 nm UV light (photo-initiator: bimethoxy-2-phenylacetophenone, DMPA). Further investigation reveals that the density of cross-linking and mechanical properties of the resulting polymers can be tailored via varying

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33

Toman, Luděk, Petr Vlček, Miloslav Sufčák, Alexander Pleska, Jiří Spěváček, and Petr Holler. "Effect of Lithium tert-Alkoxides on Anionic Polymerization of Butadiene Initiated with a Bifunctional Initiator." Collection of Czechoslovak Chemical Communications 65, no. 3 (2000): 352–60. http://dx.doi.org/10.1135/cccc20000352.

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Polymerization of buta-1,3-diene initiated by bifunctional dilithium initiator in tert-butyl methyl ether, hexane and hexane-toluene mixtures was studied in the presence of Li tert-butoxide, 2-methylpentan-2-olate, 3-methylpentan-3-olate or 2,3-dimethylbutan-2-olate. The alkoxides lower the overall polymerization rate and affect, to a certain extent, microstructure of formed polymers. When applied in a concentration equal to that of the initiating centres, they lower the content of vinyl structures in polybutadiene by 10-12%. Increasing concentration of the alkoxide has no perceptible effect a

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34

Urakawa, Osamu, Keiichiro Adachi, and Tadao Kotaka. "Dielectric normal mode relaxation of probe polyisoprene chain in semidilute polybutadiene solutions. 2. Dynamic behavior." Macromolecules 26, no. 8 (1993): 2042–49. http://dx.doi.org/10.1021/ma00060a037.

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35

Yoshikawa, Masakazu, Takashi Wano, and Toshio Kitao. "Specialty polymeric membranes 2. Pervaporation separation of aqueous lower alcohol solutions throuh modified polybutadiene membranes." Journal of Membrane Science 89, no. 1-2 (1994): 23–36. http://dx.doi.org/10.1016/0376-7388(93)e0192-m.

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36

Kishore, K., G. Varghese Dharumaraj, and P. Rajalingam. "Crosslinking reactions of 1,3,5-tris(2-methylaziridinyl-1-methyl)benzene (TRIMAM) with carboxyl terminated polybutadiene." Journal of Polymer Science Part A: Polymer Chemistry 25, no. 6 (1987): 1545–51. http://dx.doi.org/10.1002/pola.1987.080250608.

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37

Hückstädt, Hanno, Astrid Göpfert, and Volker Abetz. "Synthesis and morphology of ABC heteroarm star terpolymers of polystyrene, polybutadiene and poly(2-vinylpyridine)." Macromolecular Chemistry and Physics 201, no. 3 (2000): 296–307. http://dx.doi.org/10.1002/(sici)1521-3935(20000201)201:3<296::aid-macp296>3.0.co;2-u.

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38

David, Alessio, Marta Pasquini, Ugo Tartaglino, and Guido Raos. "A Coarse-Grained Force Field for Silica–Polybutadiene Interfaces and Nanocomposites." Polymers 12, no. 7 (2020): 1484. http://dx.doi.org/10.3390/polym12071484.

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We present a coarse-grained force field for modelling silica–polybutadiene interfaces and nanocomposites. The polymer, poly(cis-1,4-butadiene), is treated with a previously published united-atom model. Silica is treated as a rigid body, using one Si-centered superatom for each SiO 2 unit. The parameters for the cross-interaction between silica and the polymer are derived by Boltzmann inversion of the density oscillations at model interfaces, obtained from atomistic simulations of silica surfaces containing both Q 4 (hydrophobic) and Q 3 (silanol-containing, hydrophilic) silicon atoms. The perf

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39

Doskočilová, Danica, Jaroslav Straka, and Bohdan Schneider. "Study of thermal degradation of polybutadiene in inert atmosphere: 2. Characterization of thermal crosslinking in polybutadiene by high resolution solid state 13C and 1H magic angle spinning n.m.r. spectroscopy." Polymer 34, no. 2 (1993): 437–39. http://dx.doi.org/10.1016/0032-3861(93)90104-i.

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40

Kretzschmar, T., K. Hummel, and F. Hofer. "The Influence of Different Brass Pretreatments on Rubber-Metal Bonding: Investigated by Analytical Electron Microscopy." Rubber Chemistry and Technology 66, no. 5 (1993): 837–48. http://dx.doi.org/10.5254/1.3538348.

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Abstract Brass samples (thin foils or plates) were pretreated either by etching with aqueous HC1 or by rubbing with emery cloth. A mixture of cis-l,4-polybutadiene with sulfur and N,N-dicyclohexyl-2-benzothiazylsulfenamide was vulcanized in contact with the brass surfaces. The bonding layers were investigated by analytical electron microscopy (AEM). Two preparation techniques for AEM were used, namely cryo-ultramicrotomy to obtain cross sections (applied to foils), or separating ultrathin surface layers with an aqueous HCl/FeCl3 solution (applied to plates). Across the bonding layers, various

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41

Song, Xue Jing, and Yun Jun Luo. "Thermal Properties of Hyperbranched Polymer/HTPB-PU IPN." Key Engineering Materials 575-576 (September 2013): 76–80. http://dx.doi.org/10.4028/www.scientific.net/kem.575-576.76.

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Hyperbranched polymer/HTPB-PU IPNs were prepared, when HTPB (hydroxyl-terminated polybutadiene) and IPDI (isophorone diisocyanate) were cured into polyurethane (HTPB-PU) at the existence of hyperbranched polymer. Differential scanning calorimetry (DSC) was adopted to study the influence of hyperbranched polymer on thermal properties of HTPB-PU, while IPNs were formed. The result shows that the existance of hyperbranched polymer makes glass transition temperature of HTPB-PU reduces by around 2°C and that HTPB-PU lowers the melting point of hyperbranched polymer. Hyperbranched polymer plays a ro

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Okada, O. "Molecular dynamics simulation of cis-1,4-polybutadiene. 2. Chain motion and origin of the fast process." Polymer 43, no. 3 (2002): 977–82. http://dx.doi.org/10.1016/s0032-3861(01)00629-2.

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WEBER, M., and R. STADLER. "Hydrophilic-hydrophobic two-component polymer networks: 2. Synthesis and characterization of poly(ethylene oxide)-linked-polybutadiene." Polymer 29, no. 6 (1988): 1071–78. http://dx.doi.org/10.1016/0032-3861(88)90017-1.

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Watanabe, Hiroshi, Tomohiro Sato, and Kunihiro Osaki. "Viscoelastic Relaxation of Styrene−Butadiene Diblock Copolymer Micellar Systems. 2. Behavior in Entangling, Long Polybutadiene Matrices." Macromolecules 29, no. 1 (1996): 113–18. http://dx.doi.org/10.1021/ma951250g.

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Lu, Jun, Yanming Hu, Xuequan Zhang, et al. "Fe(2-EHA)3/Al(i-Bu)3/hydrogen phosphite catalyst for preparing syndiotactic 1,2-polybutadiene." Journal of Applied Polymer Science 100, no. 5 (2006): 4265–69. http://dx.doi.org/10.1002/app.23270.

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Sultanova, Rimma, Raisa Biglova, Tagir Yangirov, Vladimir Dokichev, and Gennady Zaikov. "Functionalization of Isobutylene Oligomers and 1,2-Polybutadiene with Methyldiazoacetate in the Presence of Cu(OAc)2-2,4-Lut-ZnCl2 Catalytic System." Chemistry & Chemical Technology 5, no. 2 (2011): 181–85. http://dx.doi.org/10.23939/chcht05.02.181.

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Takeuchi, Masaki, Takeshi Shiono, and Kazuo Soga. "Structure of chain-ends in polybutadiene produced with the CoBr2(PPh3)2/MgCl2/SiPh2(OCH3)2-Al(CH3)3 catalyst system." Macromolecular Rapid Communications 16, no. 3 (1995): 169–74. http://dx.doi.org/10.1002/marc.1995.030160303.

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Luo, JianHong, Jun Li, and Bao Wang. "Study on Mg2+ removal from ammonium dihydrogen phosphate solution by an emulsion liquid membrane." Chemical Industry 68, no. 3 (2014): 341–46. http://dx.doi.org/10.2298/hemind130511058l.

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Abstract:

Mg2+is extracted from ammonium dihydrogen phosphate (NH4H2PO4) solution by an emulsion liquid membrane (ELM) using mono-(2-ethylhexyl) 2-ethylhexyl phosphonate (HEHPEHE)as a carrier, sulfonated liquid polybutadiene (LYF) as a surfactant and kerosene as a solvent. To study the extraction efficiency and advantages of the ELM process in the separation of Mg2+,the effects of various operating conditions on the extraction -HEHPEHE volume fraction, reaction temperature, treat ratio (emulsion phase / external phase), phase ratio (membrane phase / internal phase), agitation speed, extraction time, int

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Wang, Pei Guo, and Arthur Woodward. "Quantitative investigation of the amorphous and crystalline components in trans-1,4-polybutadiene from solution. 2. Statistical treatment." Macromolecules 20, no. 8 (1987): 1823–26. http://dx.doi.org/10.1021/ma00174a021.

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SONG, Tianxi, Yang LI, Chunqing ZHANG, Ailing ZHANG, Xinhong Wang, and Yurong WANG. "SYNTHESIS OF POLYBUTADIENE-b-POLY[2-(DIMETHYLAMINO)ETHYL METHACRYLATE] AMPHIPHILIC BLOCK COPOLYMER BY MECHANISM TRANSFORMATION." Acta Polymerica Sinica 010, no. 2 (2010): 143–48. http://dx.doi.org/10.3724/sp.j.1105.2010.00143.

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