以季戊四醇为“核分子”超支化聚酯-酰胺的合成及表征  

Synthesis and Characterization of Hyperbranched Poly(ester-amide) with Pentaerythritol as A Core Molecule

作　　者：寇玉霞[1] 童身毅[1] 刘新泰[2] 曾光明[2] 温晋嵩 

机构地区：[1]武汉工程大学,湖北省新型反应器与绿色化学工艺重点实验室,武汉430074 [2]华润涂料公司,广东顺德528306

出　　处：《功能高分子学报》2005年第2期305-309,共5页Journal of Functional Polymers

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 AB2型单体反应 粘度 浓度 

分 类 号：O632.31[理学—高分子化学]