摘要
本工作用紫外光谱法研究了二乙二醇二甲醚、六甲基磷酰三胺,四氢呋喃和乙醚为添加剂时与聚丁二烯基锂(PBuLi)的副反应。认为在发生络合反应的同时,都存在着破坏PBuLi的反应。对这些破坏活性中心的反应所提出来的反应机理,可以用于解释丁二烯阴离子聚合中的自发终止现象。
The spontaneous reaction of polybutyllithium with polar additives such as diglycoldimethylether,hexamethylphosphertriamide, tetrahydro-furan and diethylether was studied by UV-spectrometry. It was considered that there existed a reaction which destroyed the living polybutyllithium with the complex reaction simultaneously. Possibility reaction mechanism was proposed, which could be used to explain the spontaneous termination reaction in anionic polymerization of butadiene in the presence of polar additives.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1990年第3期187-190,共4页
China Synthetic Rubber Industry
关键词
聚丁二烯基锂
阴离子
聚合
丁二烯
butadiene
anionic polymerization
reaction mechanism
polar additives
spontaneous termination
ultraviolet spectrometry
