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本文根据Yamakawa两参数理论,并利用Flory-Krigbaum-Orofino(FKO)、修正的Flory-Krigbaum-Orofino(MFKO)、Kurata-Yamakawa(KY)三种模型理论和Krigbaum经验式,通过测定聚合物在溶液中的[η]、[η]θ和分子量来估算第二维利系数A_?,得到聚合物-溶剂相互作用参数X值。结果表明:对于聚苯乙烯-甲苯、聚环氧氯丙烷-环己酮、聚甲基丙烯酸甲酯-丁酮三种柔性链聚合物-溶剂体系,应用FKO、MFKO、KY三种模型理论和Krigbaum经验式所得数据比较一致。对于二酯酸纤维素-环已酮、聚芳酯-四氯乙烷两种分子链刚性较大的体系,除FKO理论以外,也能得到较一致的结果。可以认为,粘度法测定A_2和X值是一种简便、可靠的实验方法。
Based on the Yamakawa two-parameter theory and the three model theories of Flory-Krigbaum-Orofino (FKO), modified Flory-Krigbaum-Orofino (MFKO) and Kurata-Yamakawa (KY) and Krigbaum empirical formula, In the [η], [η] θ and molecular weight to estimate the second Weili coefficient A_ ?, to obtain the polymer - solvent interaction parameter X value. The results showed that the three kinds of flexible chain polymer-solvent systems, polystyrene-toluene, polyepichlorohydrin-cyclohexanone and polymethylmethacrylate-butanone, Krigbaum empirical income data more consistent. For systems with relatively rigid molecular chains, such as dicarboxylic acid ester-cyclohexanone and polyarylate-tetrachloroethane, more consistent results than FKO theory can be obtained. It can be considered, viscosity A 2 and X value is a simple and reliable experimental method.