摘要
本文研究了以正丁基锂为引发剂、四氢呋喃为极性添加剂,在环己烷中进行α-甲基苯乙烯与苯乙烯阴离子共聚合。通过共聚组成及聚合活性种研究,由反应机理推导了该体系的共聚组成方程,求得了不同[THF]下的表观竞聚率值(?)和(?)。
Copolymerization of styrene and a-methylstyrene initiated by n-butyllithium in cyclohe-xane with tetrahydrofuran as a polar solvent has been performed. Through the investigation of copolymer composition and active species, the copolymer composition equation which applies in this system was derived based on the mechanism. The apparent reactivity ratios of two monomers were obtained. The effect of tetrahydrofuran concentration on the apparent reactivity ratios of monomers was discussed.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1991年第6期672-677,共6页
Acta Polymerica Sinica
基金
国家自然科学基金
关键词
苯乙烯
阴离子
α-甲基
共聚合反应
Styrene
a-Methylstyrene
Anionic copolymerization
Copolymer composition
Apparent reactivity ratios
