The Cationic Polymerization of pMethoxystyrene in 
Ionic Liquid

doi:10.3969/j.issn.1006-396X.2014.05.007

Journal of Petrochemical Universities ›› 2014, Vol. 27 ›› Issue (5): 28-32.DOI: 10.3969/j.issn.1006-396X.2014.05.007

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The Cationic Polymerization of pMethoxystyrene in Ionic Liquid

(1.College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; 2.Department of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China; 3. Special Elastic Composite Materials Key Laboratory of Beijing, Beijing 102617, China)

Received:2014-04-15 Revised:2014-07-18 Published:2014-10-25 Online:2014-12-19

对甲氧基苯乙烯在离子液体中的正离子聚合

宋雪超^{1, 2}, 伍一波^{2, 3}, 郭文莉^{2, 3}, 李树新^{2, 3}

( 1. 北京化工大学材料科学与工程学院, 北京1 0 0 0 2 9; 2. 北京石油化工学院材料科学与工程学院, 北京1 0 2 6 1 7;
3. 特种弹性体复合材料北京市重点实验室, 北京1 0 2 6 1 7)

通讯作者: 伍一波( 1 9 7 8 - ) , 男, 博士, 副教授, 从事正离子聚合研究;E - m a i l : w u y i b o@b i p t . e d u. c n。
作者简介:宋雪超( 1 9 8 9 - ) , 男, 硕士研究生, 从事正离子聚合研究; E - m a i l : s o n g x u e c h a o@b i p t . e d u. c n。
基金资助:
国家自然科学基金( 5 1 3 7 3 0 2 6) ; 国家重点基础研究发展计划( 2 0 1 2 C B 6 2 6 8 1 1) 。

Abstract

Abstract: Cationic polymerization of pMethoxystyrene (pMOS) was achieved in imidazole phosphate ionic liquid 1butyl3methylimidazolium hexafluorophosphate (［bmim］［PF6］) with 2chloro2,4,4trimethyl pentane (TMPCl) and boron trifluoride (BF3) as a initiating system at -10 ℃. The polymer molecular weight achieved 73 150 g/mol, and monomer conversion was more than 93.4%. The influence of reaction temperature and monomer concentrationon the polymerization was analyzed, and the molecular structure was characterized by 1HNMR.The results showed that there were two different ends structure of polymer, including chlorine end groups and double bond end groups, and the corresponding mechanism of cationic polymerization of pMethoxystyrene in ionic liquid was proposed.

Key words: Imidazole phosphate ionic liquid, , pMethoxystyrene, , Cationic polymerization, , Green solvent

摘要： 以咪唑磷酸盐类离子液体1 - 丁基 - 3 - 甲基咪唑六氟磷酸盐( [ b m i m] [ P F 6] ) 作为溶剂, 在-1 0℃下以 2 - 氯 - 2, 4, 4 - 三甲基戊烷( TMP C l ) 、三氟化硼( B F 3) 为引发体系, 实现了对甲氧基苯乙烯( p - MO S) 的正离子聚合, 得到的聚合物分子摩尔质量达到7 31 5 0g /m o l , 单体转化率超过9 3. 4%。分析了反应温度对聚合的影响, 聚合物分子摩尔质量以及聚合物末端结构等, 提出了离子液体中对甲氧基苯乙烯正离子聚合的基元反应。并通过1H - NMR对结构进行表征。研究证实[ b m i m] [ P F 6] 离子液体中所得聚合物存在含氯末端基和双键末端两种末端结构。

关键词: 咪唑磷酸盐类离子液体, , , 对甲氧基苯乙烯, , , 正离子聚合, , , 绿色溶剂

Song Xuechao,Wu Yibo,Guo Wenli,et al. The Cationic Polymerization of pMethoxystyrene in Ionic Liquid [J]. Journal of Petrochemical Universities, 2014, 27(5): 28-32.

宋雪超, 伍一波, 郭文莉, 李树新. 对甲氧基苯乙烯在离子液体中的正离子聚合[J]. 石油化工高等学校学报, 2014, 27(5): 28-32.

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The Cationic Polymerization of pMethoxystyrene in Ionic Liquid

对甲氧基苯乙烯在离子液体中的正离子聚合

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