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Journal articles on the topic 'High molar mass'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Matsuda, Yasuhiro, Fumitada Sugiura, Kazuya Okumura, and Shigeru Tasaka. "Renaturation behavior of xanthan with high molar mass and wide molar mass distribution." Polymer Journal 48, no. 5 (2016): 653–58. http://dx.doi.org/10.1038/pj.2015.128.

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2

Tsinas, Zois, Sara V. Orski, Viviana R. C. Bentley, Lorelis Gonzalez Lopez, Mohamad Al-Sheikhly, and Amanda L. Forster. "Effects of Thermal Aging on Molar Mass of Ultra-High Molar Mass Polyethylene Fibers." Polymers 14, no. 7 (2022): 1324. http://dx.doi.org/10.3390/polym14071324.

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Ultra-high molar mass polyethylene (UHMMPE) is commonly used for ballistic-resistant body armor applications due to the superior strength of the fibers fabricated from this material combined with its low density. However, polymeric materials are susceptible to thermally induced degradation during storage and use, which can reduce the high strength of these fibers, and, thus, negatively impact their ballistic resistance. The objective of this work is to advance the field of lightweight and soft UHMMPE inserts used in various types of ballistic resistant-body armor via elucidating the mechanisms

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3

Duguet, Etienne, Michele Schappacher, and Alain Soum. "High molar mass polysilazane: a new polymer." Macromolecules 25, no. 19 (1992): 4835–39. http://dx.doi.org/10.1021/ma00045a001.

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4

Qiu, Wulin, and Bernhard Wunderlich. "Reversible melting of high molar mass poly(oxyethylene)." Thermochimica Acta 448, no. 2 (2006): 136–46. http://dx.doi.org/10.1016/j.tca.2006.07.005.

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5

Fadeyeva, I. V., S. M. Staroverov, G. V. Lisichkin, A. V. Gaida, Yu V. Magerovskii, and V. A. Monastyrskii. "Gel-chromatography of high molar mass thromboplastin complexes." Polymer Science U.S.S.R. 29, no. 8 (1987): 1829–33. http://dx.doi.org/10.1016/0032-3950(87)90052-9.

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6

Monnery, Bryn D., Valentin V. Jerca, Ondrej Sedlacek, Bart Verbraeken, Rachel Cavill, and Richard Hoogenboom. "Defined High Molar Mass Poly(2‐Oxazoline)s." Angewandte Chemie 130, no. 47 (2018): 15626–30. http://dx.doi.org/10.1002/ange.201807796.

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7

Monnery, Bryn D., Valentin V. Jerca, Ondrej Sedlacek, Bart Verbraeken, Rachel Cavill, and Richard Hoogenboom. "Defined High Molar Mass Poly(2‐Oxazoline)s." Angewandte Chemie International Edition 57, no. 47 (2018): 15400–15404. http://dx.doi.org/10.1002/anie.201807796.

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8

Blain, Marine, Adrien Cornille, Bernard Boutevin, et al. "Hydrogen bonds prevent obtaining high molar mass PHUs." Journal of Applied Polymer Science 134, no. 45 (2017): 44958. http://dx.doi.org/10.1002/app.44958.

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9

Kennedy, J. C., J. R. MacCallum та D. H. MacKerron. "Synthesis and characterization of a series of poly(α,ω-alkyldiynes) and copoly(α,ω-alkyldiynes)". Canadian Journal of Chemistry 73, № 11 (1995): 1914–23. http://dx.doi.org/10.1139/v95-236.

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A series of poly(α,ω-alkyldiynes) and copoly(α,ω-alkyldiynes) were synthesized by catalytic Glaser coupling reactions. Two routes were investigated and developed. These routes were chosen in anticipation that high molar mass, linear and polydisperse, polymers would be achieved. GPC (gel permeation chromatography) curves revealed that this was possible for the majority of polymers synthesized by the first route. However, a wide range of molar masses were obtained by the second route with a significant low molar mass tail present in almost all GPC curves. Very low Mn (number average molar mass)

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10

Snyder, Chad R., Ryan C. Nieuwendaal, Dean M. DeLongchamp, Christine K. Luscombe, Prakash Sista, and Shane D. Boyd. "Quantifying Crystallinity in High Molar Mass Poly(3-hexylthiophene)." Macromolecules 47, no. 12 (2014): 3942–50. http://dx.doi.org/10.1021/ma500136d.

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11

Li, Ying, Ulrich Pöschl, and Manabu Shiraiwa. "Molecular corridors and parameterizations of volatility in the chemical evolution of organic aerosols." Atmospheric Chemistry and Physics 16, no. 5 (2016): 3327–44. http://dx.doi.org/10.5194/acp-16-3327-2016.

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Abstract. The formation and aging of organic aerosols (OA) proceed through multiple steps of chemical reaction and mass transport in the gas and particle phases, which is challenging for the interpretation of field measurements and laboratory experiments as well as accurate representation of OA evolution in atmospheric aerosol models. Based on data from over 30 000 compounds, we show that organic compounds with a wide variety of functional groups fall into molecular corridors, characterized by a tight inverse correlation between molar mass and volatility. We developed parameterizations to pred

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12

Braendle, Andreas, Carina Vidovič, Nadia Mösch-Zanetti, Markus Niederberger, and Walter Caseri. "Synthesis of High Molar Mass Poly(phenylene methylene) Catalyzed by Tungsten(II) Compounds." Polymers 10, no. 8 (2018): 881. http://dx.doi.org/10.3390/polym10080881.

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Poly(phenylene methylene)s (PPMs) with high molar masses were isolated by polymerization of benzyl chloride catalyzed with tungsten(II) compounds and subsequent fractionation. Four different tungsten(II) catalysts were successfully exploited for the polymerization, for which a strict temperature profile was developed. The PPMs possessed roughly a trimodal molar mass distribution. Simple fractionation by phase separation of 2-butanone solutions allowed to effectively segregate the products primarily into PPM of low molar mass (Mn = 1600 g mol−1) and high molar mass (Mn = 167,900 g mol−1); the l

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13

Chen, Chuangbi, Mehdihasan I. Shekh, Shuming Cui, and Florian J. Stadler. "Rheological Behavior of Blends of Metallocene Catalyzed Long-Chain Branched Polyethylenes. Part I: Shear Rheological and Thermorheological Behavior." Polymers 13, no. 3 (2021): 328. http://dx.doi.org/10.3390/polym13030328.

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Long-chain branched metallocene-catalyzed high-density polyethylenes (LCB-mHDPE) were solution blended to obtain blends with varying degrees of branching. A high molecular LCB-mHDPE was mixed with low molecular LCB-mHDPE at varying concentrations. The rheological behavior of those low molecular LCB-mHDPE is similar but their molar mass and molar mass distribution are significantly different. Those blends were characterized rheologically to study the effects of concentration, molar mass distribution, and long-chain branching level of the low molecular LCB-mHDPE. Owing to the ultra-long relaxati

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14

Li, Y., U. Pöschl, and M. Shiraiwa. "Molecular corridors and parameterizations of volatility in the evolution of organic aerosols." Atmospheric Chemistry and Physics Discussions 15, no. 19 (2015): 27877–915. http://dx.doi.org/10.5194/acpd-15-27877-2015.

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Abstract. The formation and aging of organic aerosols (OA) proceed through multiple steps of chemical reaction and mass transport in the gas and particle phases, which is challenging for the interpretation of field measurements and laboratory experiments as well as accurate representation of OA evolution in atmospheric aerosol models. Based on data from over 30 000 compounds, we show that organic compounds with a wide variety of functional groups fall into molecular corridors, characterized by a tight inverse correlation between molar mass and volatility. We developed parameterizations to pred

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15

Liu, Yang, Kaihu Xian, Zhongxiang Peng, et al. "Tuning the molar mass of P3HT via direct arylation polycondensation yields optimal interaction and high efficiency in nonfullerene organic solar cells." Journal of Materials Chemistry A 9, no. 35 (2021): 19874–85. http://dx.doi.org/10.1039/d1ta02253a.

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16

ONO, HIROSHI, and NOBUHIRO KAWATSUKI. "HIGH- AND LOW-MOLAR-MASS LIQUID CRYSTAL MIXTURES FOR PHOTOREFRACTIVE APPLICATIONS." Journal of Nonlinear Optical Physics & Materials 08, no. 03 (1999): 329–40. http://dx.doi.org/10.1142/s0218863599000230.

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We describe a highly efficient photorefractive material possessing high-molar-mass liquid crystal (H-LC), low-molar-mass liquid crystal (L-LC), and photoconductive agent. These photorefractive high- and low-molar-mass liquid crystal mixtures (HL-LCMs) show high-performance in a thick grating regime (Bragg regime) under low dc electric fields (< 1 V/μm). The photorefractive properties are strongly dependent on the concentration of the H-LC. The fastest response time of 70 ms is achieved with a gain coefficient of 213 cm-1 in the case of 10 wt% of the H-LC with 0.18 V/μm. The largest gain coe

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17

Bieniek, Angelika, та Krzysztof Buksa. "The Influence of Oat β-Glucans of Different Molar Mass on the Properties of Gluten-Free Bread". Molecules 29, № 19 (2024): 4579. http://dx.doi.org/10.3390/molecules29194579.

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The influence of β-glucans on the properties of gluten-free dough and bread is still not fully explained, with the literature suggesting both positive and negative effects. The aim of this study was to investigate the effect of the molar mass of oat β-glucans on the properties of gluten-free bread. Gluten-free breads were baked under standardized conditions from a model gluten-free mix without and with a 1% or 2% share of oat β-glucans of a low molar mass of 24,540 g/mol, a medium molar mass of 85,940 g/mol and a high molar mass of 1,714,770 g/mol. The share of β-glucans affected the increase

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18

D’Elia, Marco F., Yingying Yu, Melvin Renggli, et al. "Synthesis of Soluble High Molar Mass Poly(Phenylene Methylene)-Based Polymers." Polymers 16, no. 7 (2024): 967. http://dx.doi.org/10.3390/polym16070967.

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Poly(phenylene methylene) (PPM) is a multifunctional polymer that is also active as an anticorrosion fluorescent coating material. Although this polymer was synthesized already more than 100 years ago, a versatile synthetic route to obtain soluble high molar mass polymers based on PPM has yet to be achieved. In this article, the influence of bifunctional bis-chloromethyl durene (BCMD) as a branching agent in the synthesis of PPM is reported. The progress of the reaction was followed by gel permeation chromatography (GPC) and NMR analysis. PPM-based copolymers with the highest molar mass report

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19

Ono, Hiroshi, and Nobuhiro Kawatsuki. "High-performance photorefractivity in high- and low-molar-mass liquid crystal mixtures." Journal of Applied Physics 85, no. 5 (1999): 2482–87. http://dx.doi.org/10.1063/1.369609.

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20

Gervais, Matthieu, Anne-Laure Brocas, Gabriel Cendejas, Alain Deffieux та Stephane Carlotti. "Linear High Molar Mass Polyglycidol and its Direct α-Azido Functionalization". Macromolecular Symposia 308, № 1 (2011): 101–11. http://dx.doi.org/10.1002/masy.201151014.

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21

Al-Hamzah, Ali A., Christopher M. Fellows, and Osman A. Hamed. "Methallylsulfonate Polymeric Antiscalants for Application in Thermal Desalination Processes." Polymers 16, no. 19 (2024): 2838. http://dx.doi.org/10.3390/polym16192838.

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Nine copolymers of acrylic acid and sodium methallyl sulfonate were tested as scale inhibitors in thermal desalination. The nine antiscalants covered molar masses between 2000 and 9500 g.mol–1 and concentrations of sulfonated monomer ranging between 10 and 30 mole percent. A pressure measurement and control (P-MAC) unit and a high-temperature pressurized vessel were used to measure the effectiveness of the scale inhibitors in seawater, concentrated seawater, and model solutions at 125 °C. The effectiveness of the novel copolymers was comparable to commercial antiscalant at times up to 15 min a

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22

Sågfors, P. E., and B. Starck. "High Molar Mass Lignin in Bleached Kraft Pulp Mill Effluents." Water Science and Technology 20, no. 2 (1988): 49–58. http://dx.doi.org/10.2166/wst.1988.0045.

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The proportion of high molar mass (M &gt; 1000D*) substances (HMM) in acid and alkaline bleaching effluents from kraft pulping has been studied by means of analytical gel permeation chromatography, GPC. The amount of HMM substances in alkaline effluents was found to be 65 - 75 % and in acid stage effluents 20 % of the UV-absorbing (A280 nm) components. Lignin is the precursor of the HMM substances in the alkaline stage, and lignin and carbohydrates are the precursors of the acid stage HMM substances. For the purpose of characterization the HMM compounds were separated from low molar mass s

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23

Tamsilian, Yousef, Mahsa Shirazi, James J. Sheng, Amaia Agirre, Mercedes Fernandez, and Radmila Tomovska. "Advanced oil recovery by high molar mass thermoassociating graft copolymers." Journal of Petroleum Science and Engineering 192 (September 2020): 107290. http://dx.doi.org/10.1016/j.petrol.2020.107290.

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24

Šoltés, L., G. Kogan, M. Stankovská, R. Mendichi, J. Schiller, and P. Gemeiner. "Degradation of High-Molar-Mass Hyaluronan and Characterization of Fragments." Biomacromolecules 8, no. 9 (2007): 2697–705. http://dx.doi.org/10.1021/bm070309b.

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25

Cevada, E., K. Roos, F. Alvarez, S. Carlotti, and F. Vázquez. "High molar mass polyethers as defoamers of heavy crude oil." Fuel 221 (June 2018): 447–54. http://dx.doi.org/10.1016/j.fuel.2018.02.136.

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26

Jamróz-Piegza, M., A. Utrata-Wesołek, B. Trzebicka, and A. Dworak. "Hydrophobic modification of high molar mass polyglycidol to thermosensitive polymers." European Polymer Journal 42, no. 10 (2006): 2497–506. http://dx.doi.org/10.1016/j.eurpolymj.2006.04.017.

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27

Petton, Lionel, Edwin P. C. Mes, Hanno Van Der Wal, et al. "High molar mass segmented macromolecular architectures by nitroxide mediated polymerisation." Polymer Chemistry 4, no. 17 (2013): 4697. http://dx.doi.org/10.1039/c3py00600j.

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28

Qiu, W., M. Pyda, E. Nowak-Pyda, A. Habenschuss, and B. Wunderlich. "Reversible melting and crystallization of high-molar-mass poly(oxyethylene)." Journal of Polymer Science Part B: Polymer Physics 45, no. 4 (2007): 475–89. http://dx.doi.org/10.1002/polb.21067.

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29

Zhang, Afang. "High-Molar-Mass, First and Second GenerationL-Lysine Dendronized Polymethacrylates." Macromolecular Rapid Communications 29, no. 10 (2008): 839–45. http://dx.doi.org/10.1002/marc.200800145.

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30

Alasonati, Enrica, Stephane Dubascoux, Gaetane Lespes, and Vera I. Slaveykova. "Assessment of metal - extracellular polymeric substances interactions by asymmetrical flow field-flow fractionation coupled to inductively coupled plasma mass spectrometry." Environmental Chemistry 7, no. 2 (2010): 215. http://dx.doi.org/10.1071/en09148.

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Environmental context. Extracellular polymeric substances (EPS) are soluble polymers that are liberated from microorganisms and represent an important component of the natural organic matter in the aquatic and terrestrial environment. These substances affect nutrient and toxic metal cycling, both owing to their metal binding properties and their effect on aggregation and sedimentation. In order to obtain more information on their role in metal transport, EPS size (molar mass) distributions and the associated Ca, Cd and Pb were measured by using asymmetrical flow field-flow fractionation couple

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31

Losio, Simona, Fabio Bertini, Adriano Vignali, Taiga Fujioka, Kotohiro Nomura, and Incoronata Tritto. "Amorphous Elastomeric Ultra-High Molar Mass Polypropylene in High Yield by Half-Titanocene Catalysts." Polymers 16, no. 4 (2024): 512. http://dx.doi.org/10.3390/polym16040512.

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Propylene polymerizations with different ketimide-modified half-titanocene catalysts, Cp’TiCl2(N=CtBu2) [Cp’ = C5H5 (1), C5Me5 (2), Me3SiC5H4 (3)], with MAO as a cocatalyst, were investigated. The obtained polymers were studied in detail by determining their microstructure, molar masses, thermal, and mechanical properties. The Cp*-ketimide, (C5Me5)TiCl2(N=CtBu2) (2), exhibited higher catalytic activities than Cp’TiCl2(N=CtBu2) (1,3), yielding higher molar mass polymers, Mw up to 1400 Kg/mol. All the synthesized polypropylenes (PP) are atactic and highly regioregular, with predominant rrrr pent

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32

Wagner, Manfred H., Esmaeil Narimissa, and Taisir Shahid. "Elongational viscosity and brittle fracture of bidisperse blends of a high and several low molar mass polystyrenes." Rheologica Acta 60, no. 12 (2021): 803–17. http://dx.doi.org/10.1007/s00397-021-01304-1.

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AbstractElongational viscosity data of four well-characterized blends consisting of 10% mass fraction of monodisperse polystyrene PS-820k (molar mass of 820 kg/mol) and 90% matrix polystyrenes with a molar mass of 8.8, 23, 34, and 73 kg/mol, respectively, as reported by Shahid et al. Macromolecules 52: 2521–2530, 2019 are analyzed by the extended interchain pressure (EIP) model including the effects of finite chain extensibility and filament rupture. Except for the linear-viscoelastic contribution of the matrix, the elongational viscosity of the blends is mainly determined by the high molar ma

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33

Di Lorenzo, Maria Laura, and René Androsch. "Accelerated crystallization of high molar mass poly( l / d -lactic acid) by blending with low molar mass poly( l -lactic acid)." European Polymer Journal 100 (March 2018): 172–77. http://dx.doi.org/10.1016/j.eurpolymj.2018.01.030.

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34

Munawar, Muhammad A., and Dirk W. Schubert. "Revealing Electrical and Mechanical Performances of Highly Oriented Electrospun Conductive Nanofibers of Biopolymers with Tunable Diameter." International Journal of Molecular Sciences 22, no. 19 (2021): 10295. http://dx.doi.org/10.3390/ijms221910295.

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The present study outlines a reliable approach to determining the electrical conductivity and elasticity of highly oriented electrospun conductive nanofibers of biopolymers. The highly oriented conductive fibers are fabricated by blending a high molar mass polyethylene oxide (PEO), polycaprolactone (PCL), and polylactic acid (PLA) with polyaniline (PANi) filler. The filler-matrix interaction and molar mass (M) of host polymer are among governing factors for variable fiber diameter. The conductivity as a function of filler fraction (φ) is shown and described using a McLachlan equation to reveal

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35

Shchetinin, Pyotr P., and Margarita Shurupova. "Study of Sorption on Natural Minerals under Environmental Conditions." Key Engineering Materials 683 (February 2016): 358–62. http://dx.doi.org/10.4028/www.scientific.net/kem.683.358.

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This paper presents a comparative study of the adsorption activity of the grass meal of lady's mantle aerial part (Alchemilla vulgaris) and modern adsorption materials – activated carbon (carbolenum) and hydrolyzed lignin (polyphepane) towards model substances (markers of adsorption). The model substances were used to effectively simulate a group of toxic substances with different molar mass and degree of ionogenicity in the environment that simulates gastric and intestinal juices. It was shown that hydrolized lignin had the highest protein adsorption activity and activated carbon appeared the

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36

Galland, Sylvain, Fredrik Berthold, Kasinee Prakobna, and Lars A. Berglund. "Holocellulose Nanofibers of High Molar Mass and Small Diameter for High-Strength Nanopaper." Biomacromolecules 16, no. 8 (2015): 2427–35. http://dx.doi.org/10.1021/acs.biomac.5b00678.

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37

Sedlacek, Ondrej, Bryn D. Monnery, and Richard Hoogenboom. "Synthesis of defined high molar mass poly(2-methyl-2-oxazoline)." Polymer Chemistry 10, no. 11 (2019): 1286–90. http://dx.doi.org/10.1039/c9py00013e.

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38

Kerr, Ryan W. F., Paul M. D. A. Ewing, Sumesh K. Raman, Andrew D. Smith, Charlotte K. Williams, and Polly L. Arnold. "Ultrarapid Cerium(III)–NHC Catalysts for High Molar Mass Cyclic Polylactide." ACS Catalysis 11, no. 3 (2021): 1563–69. http://dx.doi.org/10.1021/acscatal.0c04858.

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39

Cauvin, Séverine, François Ganachaud, Michel Moreau, and Patrick Hémery. "High molar mass polymers by cationic polymerisation in emulsion and miniemulsion." Chemical Communications, no. 21 (2005): 2713. http://dx.doi.org/10.1039/b501489a.

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40

Besheer, Ahmed, Karsten Mäder, Sergej Kaiser, Jörg Kressler, Christine Weis, and Erich K. Odermatt. "Tracking the urinary excretion of high molar mass poly(vinyl alcohol)." Journal of Biomedical Materials Research Part B: Applied Biomaterials 82B, no. 2 (2007): 383–89. http://dx.doi.org/10.1002/jbm.b.30743.

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41

Turunen, Jani P. J., Matti Haukka, and Tuula T. Pakkanen. "Cocatalyst-originated aluminum residues in fibrous, very high molar mass polyethylene." Journal of Applied Polymer Science 93, no. 4 (2004): 1812–15. http://dx.doi.org/10.1002/app.20645.

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42

Walach, Wojciech, Agnieszka Kowalczuk, Barbara Trzebicka, and Andrzej Dworak. "Synthesis of High-Molar Mass Arborescent-Branched Polyglycidol via Sequential Grafting." Macromolecular Rapid Communications 22, no. 15 (2001): 1272. http://dx.doi.org/10.1002/1521-3927(20011001)22:15<1272::aid-marc1272>3.0.co;2-#.

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43

Kricheldorf, Hans R., Mikhail G. Zolotukhin, and Jorge Cárdenas. "Non-Stoichiometric Polycondensations and the Synthesis of High Molar Mass Polycondensates." Macromolecular Rapid Communications 33, no. 21 (2012): 1814–32. http://dx.doi.org/10.1002/marc.201200345.

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44

Smit, Arjan, Emanuela Bellinetto, Thomas Dezaire, et al. "Tuning the Properties of Biobased PU Coatings via Selective Lignin Fractionation and Partial Depolymerization." ACS Sustainable Chemistry and Engineering 11, no. 18 (2023): 7193–202. https://doi.org/10.1021/acssuschemeng.3c00889.

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Polyurethane (PU) coatings with high lignin content and tunable properties were made using a combination of fractionation and partial catalytic depolymerization as a novel strategy to tailor lignin molar mass and hydroxyl group reactivity, the key parameters for use in PU coatings. Acetone organosolv lignin obtained from pilot-scale fractionation of beech wood chips was processed at the kilogram scale to produce lignin fractions with specific molar mass ranges (<em>M</em><sub>w</sub> 1000–6000 g/mol) and reduced polydispersity. Aliphatic hydroxyl groups were distributed relatively evenly

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45

Pasch, Harald, Lars-Christian Heinz, Tibor Macko, and Wolf Hiller. "High-temperature gradient HPLC and LC-NMR for the analysis of complex polyolefins." Pure and Applied Chemistry 80, no. 8 (2008): 1747–62. http://dx.doi.org/10.1351/pac200880081747.

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The synthesis and characterization of polyolefins continues to be one of the most important areas for academic and industrial polymer research. One consequence of the development of new "tailor-made" polyolefins is the need for new and improved analytical techniques for the analysis of polyolefins with respect to molar mass and chemical composition distribution. The present article briefly reviews different new and relevant techniques for polyolefin analysis. Crystallization analysis fractionation is a powerful new technique for the analysis of short-chain branching in linear low-density polye

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46

Claverie, Marion, Gianluca Cioci, Marlène Vuillemin, Pauline Bondy, Magali Remaud-Simeon, and Claire Moulis. "Processivity of dextransucrases synthesizing very-high-molar-mass dextran is mediated by sugar-binding pockets in domain V." Journal of Biological Chemistry 295, no. 17 (2020): 5602–13. http://dx.doi.org/10.1074/jbc.ra119.011995.

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The dextransucrase DSR-OK from the Gram-positive bacterium Oenococcus kitaharae DSM17330 produces a dextran of the highest molar mass reported to date (∼109 g/mol). In this study, we selected a recombinant form, DSR-OKΔ1, to identify molecular determinants involved in the sugar polymerization mechanism and that confer its ability to produce a very-high-molar-mass polymer. In domain V of DSR-OK, we identified seven putative sugar-binding pockets characteristic of glycoside hydrolase 70 (GH70) glucansucrases that are known to be involved in glucan binding. We investigated their role in polymer s

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47

Metzler, Lukas, Thomas Reichenbach, Oliver Brügner, et al. "High molecular weight mechanochromic spiropyran main chain copolymers via reproducible microwave-assisted Suzuki polycondensation." Polymer Chemistry 6, no. 19 (2015): 3694–707. http://dx.doi.org/10.1039/c5py00141b.

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48

Dinculescu, Daniel Dumitru, Manuela Rossemary Apetroaei, Cristiana Luminița Gîjiu, et al. "Simultaneous Optimization of Deacetylation Degree and Molar Mass of Chitosan from Shrimp Waste." Polymers 16, no. 2 (2024): 170. http://dx.doi.org/10.3390/polym16020170.

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Shrimp waste is a valuable source for chitin extraction and consequently for chitosan preparation. In the process of obtaining chitosan, a determining step is the chitin deacetylation. The main characteristic of chitosan is the degree of deacetylation, which must be as high as possible. The molar mass is another important parameter that defines its utilizations, and according to these, high or low molar masses are required. The present study is an attempt to optimize the deacetylation step to obtain chitosan with a high degree of deacetylation and high or low molar mass. The study was carried

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Elkhalifah, Ali E. I., Mohammad Azmi Bustam, Azmi Mohd Shariff, Sami Ullah, Nadia Riaz, and Girma Gonfa. "Development and Characterization of Amine-Clay Hybrid Adsorbents for CO₂ Capture." Advanced Materials Research 1133 (January 2016): 547–51. http://dx.doi.org/10.4028/www.scientific.net/amr.1133.547.

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Abstract:

The present work aims at a better understanding of the influences of the intercalated mono-, di- and triethanolamines on the characteristics and CO2 adsorption ability of sodium form of bentonite (Na-bentonite). The results revealed that the molar mass of intercalated amines significantly influenced the structural and surface properties as well as the CO2 adsorption capacity of Na-bentonite. In this respect, a stepwise increase in the d-spacing of Na-bentonite with the molar mass of amine was recorded by XRD technique. However, an inverse effect of the molar mass of amine on the surface area w

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Drache, Marco, Maria Stehle, Jonas Mätzig та ін. "Identification of β scission products from free radical polymerizations of butyl acrylate at high temperature". Polymer Chemistry 10, № 15 (2019): 1956–67. http://dx.doi.org/10.1039/c9py00103d.

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