三苯基膦和三甲基氯硅烷直接引发丙烯酸乙酯基团转移聚合的核磁共振动力学研究

波谱学杂志 ›› 1995, Vol. 12 ›› Issue (3): 229-236.

三苯基膦和三甲基氯硅烷直接引发丙烯酸乙酯基团转移聚合的核磁共振动力学研究

施志坚, 沈卫平, 姚远, 蒋毅

上海科技大学化学系, 上海 201800

收稿日期:1994-07-12 修回日期:1994-11-01 出版日期:1995-06-05 发布日期:2018-01-17
基金资助:
国家自然科学基金,青年基金

KINETIC STUDY OF GROUP TRANSFER POLYMERIZATION OF ETHYL ACRYLATE INITIATED DIRECTLY WITH TRIPHYLPHOSPHINE AND TRIMETHYLCHLOROSILANE TO INITIATE BY NMR

Shi Zhijian, Shen Weiping, Yao Yuan, Jiang Yi

Department of Chemistry, Shanghai University of Science and Technology, Shanghai 201800

Received:1994-07-12 Revised:1994-11-01 Online:1995-06-05 Published:2018-01-17

摘要/Abstract

摘要： 用FT-NMR的动态³¹P NMR谱及动态¹H NMR谱对用三苯膦(TPP)和三甲基氯硅烷(TMCS)直接引发丙烯酸乙酯(EA)的基团转移聚合(GTP)进行了动力学跟踪,初探了该GTP反应的引发阶段、链增长阶段、链终止阶段的基础反应;三苯膦对丙烯酸乙酯的共轭加成的动力学行为;溴化锌在该反应体系的催化作用等,提出了在这种新的引发体系内的GTP反应历程。

关键词: 基团转移聚合(GTP), 丙烯酸乙酯(EA), 三甲基氯硅烷(TMCS), 三苯基膦(TPP), 动态³¹P NMR谱, 动态¹H NMR谱

Abstract: In this paper,kinetic behavior of the group transfer polymerization of ethyl acrylate initiated directly with triphenyl-phosphine and trimethylchlor-silane was studied by means of ³¹P NMR and ¹H NMR kinetic spectra.Elementary reaction of initiating step,chain adding step and chain stopping of this GTP reaction was investigated.Kinetic behavior of conjuated addition of TPP to EA and catalytic action of zinc bromide in this initiation system were discussed.GTP reaction process history in this new initiating system was also proposed.

Key words: Group transfer polymerization (GTP), Trimethylchlorosilane (TMCS), Ethylacrylate (EA), ¹H NMR kinetic spectra, ³¹P NMR kinetic spectra

施志坚, 沈卫平, 姚远, 蒋毅. 三苯基膦和三甲基氯硅烷直接引发丙烯酸乙酯基团转移聚合的核磁共振动力学研究[J]. 波谱学杂志, 1995, 12(3): 229-236.

Shi Zhijian, Shen Weiping, Yao Yuan, Jiang Yi. KINETIC STUDY OF GROUP TRANSFER POLYMERIZATION OF ETHYL ACRYLATE INITIATED DIRECTLY WITH TRIPHYLPHOSPHINE AND TRIMETHYLCHLOROSILANE TO INITIATE BY NMR[J]. Chinese Journal of Magnetic Resonance, 1995, 12(3): 229-236.