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文章编号： 1672-6987（2020）06-0058-06； DOI： 10.16351/j.1672-6987.2020.06.008
张伟a,b， 魏萌萌a,b， 安雷a,b， 李籽龙a,b， 仝艳芳a,b， 贺继东a,b*(青岛科技大学 a.橡塑材料与工程教育部重点实验室; b.山东省橡塑材料与工程重点实验室，山东 青岛 266042)
摘要： 以正己烷为溶剂，采用溶液淤浆聚合方法，用浸渍法制备的负载型Ziegler-Natta催化体系（TiCl4/MgCl2-Al(i-Bu)3）合成高反式-1,4-异戊二烯-丁二烯共聚物（简称TIBR），通过调整丁二烯/异戊二烯（Bd/Ip）的投料比来控制TIBR的微观结构，考察了TIBR微观结构对于结晶和热性能的影响，结果表明：共聚物中丁二烯和异戊二烯结构单元均以反式-1,4-构型为主，含量均大于97％，同时分别含有少量的1,2-结构和3,4-结构；其中丁二烯结构单元结晶形成的晶型以form Ⅰ晶型为主，异戊二烯结构单元结晶形成的晶型以β晶型为主。随着Bd/Ip投料比的增加，共聚物玻璃化转变温度（Tg）从-663 ℃降低至-734 ℃，热稳定性随之增强。
关键词： 聚烯烃； 高反式-1,4-异戊二烯-丁二烯共聚物； 溶液淤浆法； 微观结构
中图分类号： O 063文献标志码： A
引用格式： 张伟， 魏萌萌， 安雷， 等. 溶液淤浆法合成高反式-1,4-异戊二烯-丁二烯共聚物\[J\]. 青岛科技大学学报（自然科学版）， 2020， 41（6）： 58-63.
ZHANG Wei, WEI Mengmeng, AN Lei, et al. Synthesis of highly trans-1,4-poly(isoprene-co-butadiene) by solution slurry polymerization\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2020， 41（6）： 58-63.
Synthesis of Highly Trans-1,4-Poly(isoprene-co-butadiene) by
Solution Slurry Polymerization ZHANG Weia,b, WEI Mengmenga,b, AN Leia,b, LI Zilonga,b, TONG Yanfanga,b, HE Jidonga,b
(a.Key Laboratory of Rubber-Plastics, Ministry of Education; b.Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: Highly trans-1,4-poly(isoprene-co-butadiene)was synthesized by solution slurry polymerization with the supported Ziegler-Natta catalyst (TiCl4/MgCl2-Al(i-Bu)3) byinfusion process inn-hexane. The effect of TIBR microstructure was controlled by adjusting the butadiene/isoprene (Bd/Ip) feed ratio, and the effects of TIBR microstructure on crystallization and thermal properties were investigated.The results showed: The butadiene and isoprene units in the copolymerswere mainly in the trans-1,4-configuration, and the content were more than 97%, and also contained a small amount of 1,2-structure and 3,4-structure respectively; among them, the crystals of the butadiene units were mainly crystalline form Ⅰ, the crystals of the isoprene units were mainly crystalline β. As the feed ratio of Bd/Ip increased, the monomer conversion rate decreased from 368% to 179%; the glass-transition temperature(Tg) decreased from -663 ℃ to -734 ℃,and the thermal stability increased.
Key words: polyolefin; highlytrans-1,4-poly(butadiene-co-isoprene); solution slurry poly-merization; micro structure
收稿日期： 2019-12-11
基金项目： 山东省自然科学基金青年基金项目（ZR2019QEM002）.
作者简介： 张伟(1993—)，男，硕士研究生.*通信联系人.
