氨基酸衍生环氧树脂的固化反应动力学  

Curing Kinetic Study of Biodegradable Amino Acid Derevied Epoxy Resin

作　　者：黄霞[1] 申长雨[1] 陈家昌[2] 刘春太[1] 李倩[1] 张世勋[1] 

机构地区：[1]郑州大学国家橡塑模具中心,河南郑州450002 [2]西安交通大学材料强度国家重点实验室,陕西西安710049

出　　处：《高分子材料科学与工程》2009年第12期73-76,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(10590352)

摘　　要：以天然氨基酸为起始材料,合成了一种具有双酚羟基官能团的环肽,并以此环肽为联酚合成了主链包含酰胺键、可生物降解的环氧树脂(AAEP)。用红外光谱(FT-IR)及核磁共振(1H-NMR1、3C-NMR)表征了AAEP的化学结构,测试结果表明,合成了预期的结构;用盐酸-丙酮法测算了环氧树脂的环氧值;用动态差示扫描量热(DSC)方法对这种新环氧树脂的固化动力学进行了详细的分析,固化反应存在两个明显的放热峰,对应的表观活化能分别为Ea1=53.38 kJ/mol,Ea2=62.58 kJ/mol(Kissinger方法)。Starting from natural amino acid,cyclic dipeptide having a phenolic hydroxyl group was synthesized.Using the cyclic dipeptide as comonomer,a biodegradable epoxy resin containing amide group was syntherized.The epoxy resin was characterized by Fourier transform infrared spectroscopic（FT-IR）,nuclear magnetic resonance spectrum（1H-NMR and 13C-NMR） for their chemical structure.The epoxide value of epoxy resin was calculated by HCl-acetone method.The results of dynamic DSC thermograms show two peaks presented in the proceeding of reaction,their activation energy are Ea1=53.38 kJ/mol and Ea2=62.58 kJ/mol,respectively.

关 键 词：L-酪氨酸 环肽 环氧树脂 生物降解 固化动力学 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]