Indexed by:期刊论文
Date of Publication:2015-01-15
Journal:合成橡胶工业
Included Journals:PKU、ISTIC、CSCD
Volume:38
Issue:1
Page Number:25-29
ISSN No.:1000-1255
Key Words:聚丁二烯大分子单体;负离子聚合;封端反应;苯乙烯基团
Abstract:采用负离子聚合法制备聚丁二烯活性种,以对氯甲基苯乙烯(VBC)作为封端剂制备了苯乙烯基封端的聚丁二烯大分子单体.通过核磁共振和凝胶渗透色谱等手段对产物进行了表征,并考察了封端反应温度和VBC用量对封端效率的影响.结果表明,VBC可用于制备末端含有苯乙烯基团的聚丁二烯大分子单体.筛选的最佳实验条件为:反应温度0 ℃,以四氢呋喃作极性调节剂,VBC与负离子活性种的摩尔比大于8/1,此时聚丁二烯大分子单体的封端效率可达90％以上.此外还探讨了导致封端效率降低的副反应机理.
Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
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
Business Address:Chemical Experiment Building A303, West Campus
Contact Information:Tel：+86-411-84986101
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