作　　者： ; ; ; ; (温晋嵩）;

机构地区： 武汉工程大学化工与制药学院湖北省新型反应器与绿色化学工艺重点实验室

出　　处： 《功能高分子学报》 2005年第2期305-309,共5页

摘　　要： 以二异丙醇胺(DIPA)与六氢苯酐(HHPA)为原料合成了一种端基带有一个羧基、两个羟基的AB2型单体。用季戊四醇(PETL)作为“核分子”,按一定的摩尔配比与AB2型单体反应,分别得到两种不同的超支化聚酯酰胺(1GHP、2GHP)。并采用红外光谱(IR)、凝胶渗透色谱法(GPC)、粘度法等方法对其结构进行了表征。结果表明1GHP、2GHP的多分散性指数分别为1.47和2.17,呈现很窄的分子量分布。两种分子的粘度与浓度的关系服从Einstein粘度方程,具有紧凑的球形分子结构。 The syntheses of hyperbranched poly(ester-amide)s based upon pentaerythritol (PETL) as a core molecule and AB_2 monomer which contains a single carboxylic group and two hydroxylic groups have been studied. The AB_2 monomer was prepared by diisopropanolamine (DIPA) and cis-1,2-clyclohexane-dicarboxylic anhydride (HHPA). Two types of hyperbranched poly(ester-amide) (1G-HP 、2G-HP) were obtained with different ratio of pentaerythritol (PETL) to AB_2 monomer. The structure of the resulting products were characterized by IR,GPC ,and viscosity measurement. The results showed that 1G-HP and 2G-HP have narrow molecular weight distribution with the polydispersity of 1.47 and 2.17 respectively. The relationship between viscosity and concentration of 1G-HP and 2G-HP in solution is to obey Einstein viscosity equation and showed that the macromolecules are compacted in spheroid form.

关 键 词： 季戊四醇 超支化聚酯 酰胺 合成方法 结构表征 摩尔配比 型单体反应 粘度 浓度

领　　域： [理学] [理学]