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

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【作者】 JIM Cathy K W； LAM Jacky W Y； HAEUSSLER Matthias；

【Author】 JIM Cathy K W1,QIN AnJun1,2,LAM Jacky W Y1,LIU JianZhao1,HAEUSSLER Matthias1 & TANG Ben Zhong1,2 1 Department of Chemistry,The Hong Kong University of Science & Technology,Clear Water Bay,Kowloon,Hong Kong,China;2 Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China

【机构】 Department of Chemistry The Hong Kong University of Science & Technology； Clear Water Bay； Kowloon； Hong Kong； China； Department of Chemistry； The Hong Kong University of Science & Technology；

【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%.更多还原

【Abstract】 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%.更多还原

【关键词】 cyclotrimerization； regioselectivity； hyperbranched polymer；
【Key words】 cyclotrimerization； regioselectivity； hyperbranched polymer；

【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).

【文献出处】 Science in China(Series B:Chemistry) ,中国科学(B辑:化学)(英文版) , 编辑部邮箱 ,2008年08期

【分类号】O643.32
【被引频次】5
【下载频次】29

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