Chunqing ZHANG
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酸性膦酸酯钕盐催化丁二烯在苯乙烯溶剂中的选择性聚合
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Indexed by:期刊论文

Date of Publication:2010-01-15

Journal:合成橡胶工业

Included Journals:ISTIC、CSCD

Volume:33

Issue:1

Page Number:11-15

ISSN No.:1000-1255

Key Words:苯乙烯;丁二烯;稀土催化剂;溶液聚合;微观结构;高抗冲聚苯乙烯

Abstract:以酸性膦酸酯钕盐Nd(P_(507))_3(简称Nd)、氢化二异丁基铝(简称Al)和倍半乙基铝(简称Cl)为催化剂体系,研究了丁二烯在苯乙烯溶剂中的选择性聚合,考察了溶剂种类、Al/Nd、Cl/Nd及温度对聚合的影响.结果表明,该催化剂体系可在苯乙烯溶剂中实现丁二烯的选择性聚合,在Al/Nd(摩尔比)为10、Cl/Nd(摩尔比)为2.0及聚合温度为50 ℃的条件下,丁二烯的转化率可达90%以上;聚合物中苯乙烯链节的摩尔分数在4%以下,丁二烯链节的顺式-1,4-结构摩尔分数为90%左右,1,2-结构摩尔分数为4%左右.

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Gender:Male

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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