超支化环氧树脂合成与结构研究  

Preparation of Hyperbranched Epoxy Resin and Its Performance

作　　者：吴璧耀[1] 张峻珩[1] 陈瑶[1] 尹文华[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,湖北武汉430074

出　　处：《石油化工高等学校学报》2007年第1期56-59,共4页Journal of Petrochemical Universities

摘　　要：以偏苯三酸酐(TMA)和乙二醇为原料合成了一种端基带有两个羧基、一个羟基的AB2型单体,用偏苯三酸酐(TMA)作为核,按一定的摩尔配比与AB2型单体反应,分别得到两种相对分子质量不同的末端为羧基的超支化聚酯G1,G2。采用相转移催化剂,以该种超支化聚酯钾盐与环氧氯丙烷发生酯化反应的方法合成了超支化聚酯型环氧树脂G1′与G2′。采用红外光谱(IR)、凝胶渗透色谱法(GPC)、1HNMR等方法对其结构进行了表征。结果表明,G1和G2的相对分子质量分布指数为1.008 1和1.011 0,呈现很窄的相对分子质量分布;红外光谱证明了超支化聚酯型环氧树脂的形成。The AB2 monomer was prepared by trimellitic anhydride （TMA） and ethylene glycol. The syntheses of hyperbranched polymer based upon TMA as a core molecule and AB2 monomer which contains two single carboxylic group and one hydroxy groups were studied. Two types of hyperbranched polyester （G1 ,G2 ） with different relative molecular weight were obtained by reaction between TMA and AB2 monomer and reaction between G1 and TMA respectively with different mole ratio. Using phase transfer catalyst between epichlorohydrin and potash salt hyperbranched polymer, hyperbranched epoxy polymer of G1 ′ and G2′ was synthesized. The structure of products was characterized by using IR, GPC and ^1 HNMR. The results show that G1 and G2 have narrow relative molecular weight distribution with 1. 008 1 and 1. 011 0 respectively; the IR shows that the hyperbranched epoxy polymer is formed.

关 键 词：超支化聚合物 相转移 超支化环氧树脂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] O633.13[理学—高分子化学]