Anion ring-opening polymerization of ethylene oxide by initiation of sodium 4-amino-N-(2-pyrimidinyl)benzene sulfonamide and influence of moisture on polymerization  

作　　者：黄骏廉 王海原 

机构地区：[1]Department of Macromolecular Science, Fudan University, Laboratory of Macromolecular Engineering of Polymer, State Education Commission of China, Shanghai 200433, China

出　　处：《Science China Chemistry》1996年第4期337-346,共10页中国科学（化学英文版）

基　　金：Project supported by the National Natural Science Foundation of China;Doctor Training Foundation of the State Education Commission of China;the Natural Science Foundation of Shanghai

摘　　要：Polyethylene oxide with sulfadiazine and hydroxyl end groups (PEOsf) were prepared by anion ring-opening polymerization of ethylene oxide initiated by sodium 4-amino-N-(2-pyrimidinyl)benzene sulfonamide (SF-Na). The product was characterized in detail by NMR, IR, GPC and DSC. Its molecular weight and molecular weight distribution are in the range of 1200-1 500 and 1.04-1.06 respectively, and the latter is nearly monodistribution. The trace of the moisture from air could accelerate the polymerization, and the mechanism is discussed.Polyethylene oxide with sulfadiazine and hydroxyl end groups (PEOsf) were prepared by anion ring-opening polymerization of ethylene oxide initiated by sodium 4-amino-N-(2-pyrimidinyl)benzene sulfonamide (SF-Na). The product was characterized in detail by NMR, IR, GPC and DSC. Its molecular weight and molecular weight distribution are in the range of 1200-1 500 and 1.04-1.06 respectively, and the latter is nearly monodistribution. The trace of the moisture from air could accelerate the polymerization, and the mechanism is discussed.

关 键 词：SODIUM SULFADIAZINE ethylene oxide RING-OPENING polymerization. 

分 类 号：O631[理学—高分子化学]