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Swelling Kinetics of Linseed Oil-Based Polymers

机译:亚麻籽油基聚合物的溶胀动力学

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Kinetics of swelling and sorption behavior of copolymers (based on linseed oil, styrene, divinylbenzene, and acrylic acid via cationic and thermal polymerization) is Studied in tetrahydrofuran (THF) at different temperatures. The values of n in the transport equation are found to be below 0.4, showing non-Fickian or pseudo-Fickian transport in the polymers. The dependence of diffusion coefficient on the composition and temperature has also been Studied for the linseed oil-based polymers. The diffusion coefficient in cationic samples decreases with an increase in the oil contents in the samples. In case of thermal samples, the diffusion coefficient first increases up to 30%,) oil contents and then decreases. The diffusion coefficient decreases with an increase in temperature for all of the linseed oil polymer samples. The sorption coefficient increases with an increase in the oil contents for all samples. The crosslink density (calculated from the THF swelling) ranges from 20.16 to 92.34 x 10(6) mol/cm(3) for cationic samples and 20.62 to 86.01 x 10(6) mol/cm(3) for thermal samples. (C) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 1816-1827, 2009
机译:研究了共聚物(基于亚麻籽油,苯乙烯,二乙烯基苯和丙烯酸,通过阳离子聚合和热聚合)的溶胀和吸附动力学,并在不同温度下于四氢呋喃(THF)中进行了研究。发现在传输方程中的n值低于0.4,表明聚合物中的非菲克或拟菲克迁移。对于亚麻籽油基聚合物,还研究了扩散系数对组成和温度的依赖性。阳离子样品中的扩散系数随样品中油含量的增加而降低。对于热样品,扩散系数首先增加至30%(含油量),然后降低。对于所有亚麻籽油聚合物样品,扩散系数随温度的升高而降低。对于所有样品,吸附系数都随含油量的增加而增加。交联密度(由THF溶胀计算)对于阳离子样品为20.16至92.34 x 10(6)mol / cm(3),对于热样品为20.62至86.01 x 10(6)mol / cm(3)。 (C)2008 Wiley Periodicals,Inc.J Appl Polym Sci 111:1816-1827,2009

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