Amine-catalyzed polycyclotrimerization of arylene bipropiolate:A metal-free and regioselective route to hyperbranched polymer

作     者：JIM Cathy K W LAM Jacky W Y HAEUSSLER Matthias 

作者机构：Department of ChemistryThe Hong Kong University of Science & TechnologyClear Water BayKowloonHong KongChina 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2008年第51卷第8期

页      面：705-708页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Supported by the Research Grants Council of Hong Kong (Grant Nos. 602707, 602706, HKU2/05C and 603505) the National Science Foundation of China (Grant No. 20634020) the Ministry of Science and Technology of China (Grant No. 2002CD613401) 

主　　题：cyclotrimerization regioselectivity hyperbranched polymer 

摘      要：This paper presents a new synthetic route to hyperbranched polymer. An arylene bipropiolate monomer,dimethylmethylenebis(1,4-phenylene) bipropiolate,was prepared by a one-step esterification reaction of bisphenol A with propiolic acid. Polycyclotrimrtization of the monomer was effected by reflux in dimethylformamide(DMF),producing a soluble hyperbranched poly(aroxycarbonylphenylene) in a good yield. The polymer was perfectly branched with a degree of branching of 100%.