摘要
通过测定聚苯乙烯/甲基环己烷溶液的临界组成,实验室发展了一种新的聚苯乙烯相对分子质量的测定方法。通过对标准聚苯乙烯/甲基环己烷溶液的临界组成的测定,得到溶液的临界组成与聚苯乙烯相对分子质量的定量关系:lnΦC=(1.848±0.086)-(0.370±0.008)lnM,通过该关系确定聚苯乙烯相对分子质量的相对误差2%。
A novel method for measuring molecule weight of polystyrene was set up by measuring the critical solution component of polystyrene in methylcyclohexane. Eight critical solution components of standard polystyrenes in methylcyclohexane were obtained by equal volume method. The critical component had quantitative relationship with the molecule weight, and the relationship was In Ф c = （ 1. 848 ± 0. 086） - （0. 370 ± 0. 008） In （ M/g. mol ^- 1 ）. The result obtained by this method had the relative error of 2%.
出处
《化工时刊》
CAS
2007年第9期40-41,49,共3页
Chemical Industry Times
基金
湖南省教育厅科研项目资助(01C383
02C525)
