文献类型：期刊文献

中文题名：压电晶体微平衡法测定溶剂在高分子中的扩散系数

英文题名：Measurement of Diffusion Coefficient of Solvents in Polymer by \=Piezoelectric Quartz Crystal Microbalance Method

作者：邹斌[1];史济斌[1];虞大红[1];刘洪来[1];胡英[1]

机构：[1]华东理工大学化学系

年份：1999

卷号：25

期号：4

起止页码：405

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：2000045118557);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：扩散系统;压电晶体;高分子;溶剂;微平衡法

外文关键词：diffusion coefficient; transport process; piezoelectric quartz crystal; solubility; polymer

摘要：建立了应用压电晶体微平衡法测定溶剂在高分子中的吸收动力学曲线的实验装置，测定了２９８～３１３Ｋ范围内乙酸乙酯和丁酮在聚苯乙烯、聚甲基丙烯酸甲酯、聚酞酸二烯丙酯三种高分子中的吸收曲线，并获得了溶剂的平均扩散系数和平衡溶解度。用溶剂在玻璃态高分子膜中的传递模型对所得吸收曲线进行了关联，对Ｓ型吸收曲线取得令人满意的关联效果，但该模型不适用于双平衡型吸收曲线的关联。
An experimental apparatus for the measurement of sorption kinetic curves of solvent in polymer by piezoelectric quartz crystal microbalance method have been established. The sorption curves of ethyl acetate and butanone in polystyrene(PS), poly(methyl methacrylate)(PMMA) and poly(diallyl phthalate)(PDAP) at 298￣313K have been measured. The diffusion coefficient and equilibrium solubility of ethyl acetate and butanone in PS, PMMA and PDAP are obtained. The transport model of penetrants in glassy polymer membrane presented by Li et al. is used to correlate the sorption curves, good agreement between the experimental data and calculated results can be obtained for sigmoid sorption curves. However, this model can not be used to correlate those sorption curves with twostage equilibrium.