节点文献
丙酮-PMMA及乙酸乙酯-PMMA系统汽液平衡研究
Study on Vapor-liquid Equilibria for Acetone-PMMA and Ethyl Acetate-PMMA Systems
【摘要】 采用石英弹簧重量法,对三种不同相对分子质量的PMMA单分散样品,测定了35℃下丙酮-PMMA、乙酸乙酯-PMMA系统的汽液平衡数据。分析了Flory-Huggins相互作用参数χ与溶液组成及样品相对分子质量的关系。用Elbro-FV模型预测了溶剂活度系数,并与实验结果进行了比较。
【Abstract】 The vapor-liquid equilibria(VLE)of polymer solutions for acetone-polymethyl methacrylate(PMMA)and ethyl acetate-PMMA systems at 308.15K were determined by using a multicell vapor-adsorption quartz-spring apparatus,Flory-Huggins interaction parameters were calculated.Elbro model was applied to predict the VLE of solvent-polymer systems,and the predicted results were compared with the experimental results.
【关键词】 热力学;
汽液平衡;
活度系数;
聚甲基丙烯酸甲酯(PMMA);
溶剂;
【Key words】 thermodynamics; vapor-liquid equilibria; activity coefficient; poly(methyl methacrylate); solvent;
【Key words】 thermodynamics; vapor-liquid equilibria; activity coefficient; poly(methyl methacrylate); solvent;
【基金】 国家自然科学基金,DuPont公司资助
- 【文献出处】 华东理工大学学报 ,JOURNAL OF EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY , 编辑部邮箱 ,1996年03期
- 【分类号】O631.2
- 【被引频次】1
- 【下载频次】100