水溶性超支化共聚(酯-胺)的分子设计及合成  

Molecule-Design and Synthesis of Water-soluble Hyperbranched Copoly(ester-amine)s

作　　者：高超[1] 颜德岳[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240

出　　处：《高等学校化学学报》2002年第9期1814-1816,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 99740 17);上海交通大学博士启动基金资助

摘　　要：Water\|soluble hyperbranched copoly(ester\|amine)s with various degree of branching (DB) were prepared \%via\% the "A\-2+B\-2+BB′\-2" approach. Due to the faster reaction between A and B functional groups, the intermediate containing one A group and two B′ groups was generated\% in situ\%. Further self\|polyaddition of the AB′\-2 intermediate gave hyperbranched polymer. In this communication, A\-2 is ethylene diacrylate (EDA), B\-2 is piperazine (PZ), and BB′\-2 is 1\|(2\|aminoethyl)piperazine (AP). The combination of mass spectrum and \%in situ\% FTIR determined the reaction mechanism and propagating paths predicted. DB of the resulting branched poly(ester\|amine)s decreases with increasing the feed ratio of PZ to AP. In the same molecular weight, the inherent viscosity of the polymers presented here increases with decreasing DB. The simplicity of the reaction process, the controllability of the architecture, and the commercially availability of the raw materials would make this approach attractive in the large scale manufacture and application of hyperbranched polymer materials.Water\|soluble hyperbranched copoly(ester\|amine)s with various degree of branching (DB) were prepared \%via\% the 'A\-2+B\-2+BB′\-2' approach. Due to the faster reaction between A and B functional groups, the intermediate containing one A group and two B′ groups was generated\% in situ\%. Further self\|polyaddition of the AB′\-2 intermediate gave hyperbranched polymer. In this communication, A\-2 is ethylene diacrylate (EDA), B\-2 is piperazine (PZ), and BB′\-2 is 1\|(2\|aminoethyl)piperazine (AP). The combination of mass spectrum and \%in situ\% FTIR determined the reaction mechanism and propagating paths predicted. DB of the resulting branched poly(ester\|amine)s decreases with increasing the feed ratio of PZ to AP. In the same molecular weight, the inherent viscosity of the polymers presented here increases with decreasing DB. The simplicity of the reaction process, the controllability of the architecture, and the commercially availability of the raw materials would make this approach attractive in the large scale manufacture and application of hyperbranched polymer materials.

关 键 词：分子设计 合成 超支化聚酯 二丙烯酸酯 1-(2-胺乙基)哌嗪 哌嗪 

分 类 号：O633.14[理学—高分子化学]