摘要
体积排除色谱测定共聚物组成分布一般需双检测器。本文提出用示差折光仪单一检测器选择多种溶剂作多次测定可获得共聚物的组成分布。应用这种新方法测定了硅氧烷-苯乙烯双组分和硅氧烷-苯乙烯-丙烯酸丁酯三组分接枝共聚物的组成分布,获得了满意的结果。
The determination of compositional distribution of copolymers by SEC usually require equipment with dual detectors. In the present article a SEC method for determining compositional distribution ol binary and ternary copolymer with a single refractive index detector is proposed,This new method is successfully applied to the compositional analysis ol polydimethylsiloxane-g-polystyrene and polydimethylsiloxane-g-polystyrene-polybutylac-rylate.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1991年第5期64-69,共6页
Polymer Materials Science & Engineering
基金
国家自然科学基金
关键词
聚合物
测定
体积排除色谱
size exclusion chromatography, compositional distribution,polydimethylsilo-xane-g-polystyrene,polydimethylsiloxane-g-polystyrenepolybutylacrylate.
