文献类型：期刊文献

中文题名：聚甲基丙烯酸丁酯-丙酮系统的汽液平衡

英文题名：VAPOR-LIQUID EQUILIBRIA FOR MIXTURES OF ACETONE AND POLY BUTYL METHACRYLATE

作者：王琨[1];谢幼珍[1];傅金彦[1];胡英[1]

机构：[1]华东理工大学化学系,上海200237

年份：1994

卷号：45

期号：4

起止页码：489

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

基金：Du Pont Co.;国家自然科学基金资助项目

语种：中文

中文关键词：汽液平衡;聚甲基;丙烯酸丁酯;丙酮

外文关键词：vapor liquid equilibrium, polymer solution, Flory - Huggins interaction parameter, poly butyl methacrylate, acetone

摘要：用石英弹簧称重法测定了25℃时,丙酮与3种不同摩尔质量的单分散聚甲基丙烯酸丁酯溶液的汽液平衡.结果表明在实验误差范围内,相对蒸汽压ρ_1/ρ_(?)对液相质量分数w_1作图所得曲线与聚合物的摩尔质量无关.由实验数据计算所得Flory-Huggins相互作用参数X显著依赖于溶液浓度,聚合物摩尔质量也有轻微影响.用修正的Freed模型进行关联,取得了良好的效果.
Vapor - liquid equilibria for mixtures of acetone and poly butyl methacrylate with three different molar masses from 17278 g/mol to 88059 g/mol were obtained at 25. 0℃ by using the Quartz - Spring gravimetric method. The reduced pressure p1/p°1 versus mass fraction W1 plots were found to be independent of the molar mass of the polymer within experimental error. The calculated Flory - Huggins interaction parameters X exhibit a strong concentration dependence. The molar mass of the polymer also exerted a definite influence. The experimental Flory - Huggings interaction parameters were correlated by the revised Freed model.