钕-铝双金属配合物催化异戊二烯聚合的原位环化反应
Cyclization in situ of Isoprene Polymerization Catalyzed by Nd-Al Bimetallic Complex作者机构：中国科学院长春应用化学研究所长春130022
出 版 物：《高等学校化学学报》 (Chemical Journal of Chinese Universities)
年 卷 期：2000年第21卷第3期
页 面：493-495页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
基 金：国家自然科学基金!(批准号 :2 95 74179)资助
摘 要：Function of chloride and effect of various alkylaluminiums, Cl/Al molar ratio, solvents on cyclization in situ of isoprene polymerization catalyzed by Nd Al bimetallic complex were studied. The structure of cyclized products was characterized by means of IR and 1H NMR. The results indicated that in the course of isoprene polymerization with rare earth catalytic system, the function of alkylchloride introduced is terminating cis polymerization and generating cationic species with alkyl aluminums to initiate cyclization in situ . Soluble cyclized polyisoprene was obtained with fragments of cyclopolyisoprene.
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