STUDY ON SEQUENCE DISTRIBUTION OF 3, 4-POLYISOPRENE BY 13C-NMR

作     者：谢德民 孙菁 

作者机构：Changchun Institute of Applied Chemistry Academia Sinica Changchun Changchun Institute of Applied Chemistry Academia Sinica Changchun 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学(英文版))

年 卷 期：1987年第5卷第2期

页      面：114-119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] 

主　　题：13C-NMR 3, 4-Polyisoprene Sequence distribution Diene polymerization Fe-catalyst 

摘      要：Isoprene can be plymerized with Fe（acac）3-phen-AlEt3catalyst system into a polymer mainly containg 3, 4-unit and capable of crystallizing to some extent. The13C-NMR spectra of 3, 4-polyisoprene synthesized: with Fe-catalyst system were investigated, and the: sequence distribution of cis-1, 4, trons-1, 4 and 3, 4-units and the amount of head-to-head and tail-to-tail linkages of 1, 4 and 3, 4-units were discussed. Results showed that the contents of cis-1, 4, trans-1, 4 and 3, 4-unit calculated from different carbon types were satisfactorily identical, indicating correct assignments of these peaks.