Indexed by:期刊论文
Date of Publication:1998-07-20
Journal:合成橡胶工业
Issue:04
Page Number:36-37
ISSN No.:1000-1255
Key Words:丁二烯;苯乙烯;负离子聚合;四氢呋喃;四氯化锡;己二酸二乙酯;偶联反应
Abstract:以n-BuLi为引发剂,THF/n-BuLi(摩尔比)为80~300,在丁二烯、苯乙烯负离子共聚体系中加入SnCl4或己二酸二乙酯(DEAP)进行偶联反应,研究了THF和偶联剂用量、偶联反应温度和时间及共聚物不同链末端结构对偶联反应的影响。结果表明,SnCl4的偶联效率(51.6%)高于DEAP(43.8%),且该体系共聚物链末端结构对偶联效率无影响;SnCl4较佳的偶联反应条件为:50℃,30min,SnCl4/n-BuLi为0.1
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Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Dept. of Polymer Materials
Discipline:Polymer Materials. Polymer Chemistry and Physics. Chemistry and Chemical Engineering of Functional
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