ICAR ATRP OF ACRYLONITRILE UTILIZING A MODERATE TEMPERATURE RADICAL INITIATOR

作     者：Fei-jun Zhang 刘晓辉 

作者机构：School of Materials Science and EngineeringKey Lab of Hollow Fiber Membrane Material and Processes of Ministry of EducationTianjin Polytechnic University 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2013年第31卷第12期

页      面：1613-1622页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(Nos.21074127 and 20804044) the Key Project of Chinese Ministry of Education(No.212003) 

主　　题：Living polymerization ICAR ATRP Acrylonitrile Ambient temperature. 

摘      要：Initiators for continuous activator regeneration atom transfer radical polymerization （ICAR ATRP） of acrylonitrile was first conducted at various ambient temperatures （30-45 ℃）. The key to success is ascribed to the usage of an appropriate low temperature radical initiator （2,2＇-azobis（2,4-dimethylvaleronitrile）） and a high reactivity catalytic system （CuBr2/Me6TREN）. The molar ratio of Cu catalyst tO AN as low as 1：20000 wa.s used to prepare well-defined polyacrylonitrile with controlled molecular weight and a narrow polydispersity index range of 1.08-1.30, while the monomer conversion was up to ca. 98%. The apparent activation energy of the polymerization was calculated to be 128.45 kJ/mol, suggesting that the polymerization strongly depended on reaction temperature. The very high chain-end functionality of the resultant polymer was confirmed by ^1H-NMR and GPC analyses as well as chain extension reaction.