聚(衣康酸丁二醇酯癸二酸丁二醇酯)的合成与表征  

Synthesis and Characterization of Poly(Butylene Itaconate-co-Butylene Sebacate)

作　　者：王传兴[1] 朱来响 高传慧[1] 李东阳[1] 武玉民[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《高分子材料科学与工程》2015年第6期17-21,共5页Polymer Materials Science & Engineering

基　　金：青岛市基础研究-联合基金计划项目(12-1-4-3-(33)-jch)

摘　　要：以衣康酸(IA)、癸二酸(SA)和1,4-丁二醇(BDO)为反应单体,采用熔融酯化缩聚法合成了一系列新型可生物降解脂肪族聚(衣康酸丁二醇酯癸二酸丁二醇酯)(PBIS)。采用核磁共振、凝胶渗透色谱、差示扫描量热、热失重分析和酶降解测试等方法对共聚酯的结构和性能进行了表征。凝胶渗透色谱测试结果表明,随着共聚酯中衣康酸含量的增加,其数均相对分子质量先减小后增大;差示扫描量热分析得出,产物的熔点和结晶温度随衣康酸含量的增加而下降;热失重分析表明,共聚酯拥有较好的热稳定性;酶降解测试得出共聚酯具有良好的生物降解性,且降解速率随衣康酸含量的增加而加快。Poly(butylene itaconate-co-butylene sebacate)(PBIS)was synthesized using itaconic acid(IA),sebacic acid(SA)and 1,4-butanediol as raw materials by melt esterification polycondensation.The structure and physical properties of the resulting aliphatic cpolyesters were characterized by 1 H-NMR,gel permeation chromatography(GPC),differential scanning calorimetry(DSC),thermogravimetry analysis(TGA)and lipase enzymatic degradation test.GPC test shows that the molecular weight of the product decreases firstly and then increases with the increasing content of itaconate in the copolyesters.DSC curve shows that the melting point and crystallization temperature decrease with the increasing content of itaconate in the copolyesters.TGA analysis indicates that the copolymers have better thermal stability.The lipase enzymatic degradation test indicates that the copolyesters have better degradability,and the degradative rate increases with the increasing content of itaconate in the copolyesters.

关 键 词：生物降解聚酯 衣康酸 癸二酸 熔融酯化缩聚 酶降解 

分 类 号：TQ317[化学工程—高聚物工业]