氨基酸衍生联酚与聚乙二醇两亲共聚物的合成与表征  

Synthesis and Characterization of Biodegradable Copolymer of Amino Acid Derived Diphenol and PEG

作　　者：黄霞[1] 陈家昌[2] 申长雨[1] 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工程中心,河南郑州450002 [2]西安交通大学,金属材料强度国家重点实验室,陕西西安710049

出　　处：《塑料》2009年第4期58-60,共3页Plastics

基　　金：国家自然科学基金资助项目(10590352)

摘　　要：选用不同分子量的聚乙二醇(PEG),与环肽按照不同的摩尔比共聚,合成了一系列新氨基酸衍生的聚醚酯。用FTIR与NMR分析系列聚合物的化学结构,用DSC表征共聚物的热性能。包含同种PEG的共聚物,其Tg随着PEG含量的增加而逐渐降低;比较含相同摩尔分数PEG的共聚物可知,分子量较高的PEG对共聚物的热性质影响更为明显。同时与聚碳酸酯(PC)相比,共聚物的溶解度也有所改变。通过比较不同组分共聚物的性能变化,建立了结构与性质的定性关系。A novel class of amino acids derived poly（CYC-PEG-ether） was synthesized by cyclic dipeptide and different PEG. The chemical structure of eopolymers were characterized by FTIR,^1H NMR, the thermal properties of polymer were characterized by DSC and TGA. The Tg of copolymers decreased with increasing the moler of of PEG. The effect PEG＇ s thermal property with high molecular weight was obvious by comparing with same mole PEG. At the same time, the solubility of copolymer changed by comparing with pure PC. General structure-property correlation Were established.

关 键 词：氨基酸衍生联酚 聚乙二醇 两亲共聚物 生物可降解 溶解度 

分 类 号：TQ323.3[化学工程—合成树脂塑料工业] TQ325.9