当前位置: 首页 > 文章 > 环状三过氧烷引发的嵌段共聚物合成与表征 江苏大学学报(自然科学版) 2009,30 (2) 147-151
Position: Home > Articles > Synthesis and characterization of block copolymer with cyclic triperoxonane Journal of Jiangsu University (Natural Science Edition) 2009,30 (2) 147-151

环状三过氧烷引发的嵌段共聚物合成与表征

作  者:
盛维琛;谈静;周志平;袁新华;翁志学
单  位:
浙江大学;江苏大学
关键词:
聚甲基丙烯酸甲酯;聚苯乙烯;嵌段共聚物;引发剂
摘  要:
利用环状三官能度引发剂3,6,9-三乙基-3,6,9-三甲基-1,4,7-三过氧烷(TETMTPA)中过氧键相继分解的特性引发苯乙烯聚合得到含有过氧键的聚苯乙烯预聚物(PSP),它进一步引发另一单体甲基丙烯酸甲酯(MMA)聚合得到聚苯乙烯-聚甲基丙烯酸甲酯嵌段共聚物.预聚物中过氧键的存在及位置通过DSC,TG,GPC等方法得到证实,利用GPC,FTIR,NMR等对嵌段共聚物进行了表征.结果表明,利用TETMTPA可以合成聚苯乙烯-聚甲基丙烯酸甲酯嵌段共聚物,预聚物中的过氧键含量及嵌段共聚物中的摩尔比率与反应时间有关.
译  名:
Synthesis and characterization of block copolymer with cyclic triperoxonane
作  者:
Sheng Weichen1,Tan Jing1,Zhou Zhiping1,Yuan Xinhua1,Weng Zhixue2 (1.School of Material Science and Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;2.Polymer Reaction Engineering Division,State Key Laboratory of Chemical Engineering,School of Materials and Chemical Engineering,Zhejiang University,Hangzhou,Zhejiang 310027,China)
关键词:
polymethyl methacrylate;polystyrene;block copolymers;initiator
摘  要:
The polymerization of styrene using cyclic triperoxoane-3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxoane(TETMTPA) as initiator was investigated and the polystyrene with peroxide(PSP) was obtained.The polystyrene-b-poly(methyl methacrylate) was prepared using the peroxide groups in PSP to initiate the second monomer methyl methacrylate.Using DSC,TG and GPC,the existence of peroxide groups in PSP and their position were confirmed.And the block copolymer was characterized with GPC,FTIR,NMR.The results show that the polystyrene-b-poly(methyl methacrylate) can be synthesized with TETMTPA.The content of peroxide groups in PSP and the molar ratio of PS and PMMA in copolymer are related to the reaction time.

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