聚丁二酸-辛二酸丁二醇酯的合成与酶促降解性能  

Synthesis and Enzymatic Degradation of Polybutylene Succinate-Suberate

作　　者：杨锦 宋力 苏婷婷[1] Jin Yang;Li Song;Tingting Su(School of Petrochemical Engineering,Liaoning University of Petrochemical Technology,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《高分子材料科学与工程》2022年第12期131-136,145,共7页Polymer Materials Science & Engineering

基　　金：辽宁省兴辽英才计划(XLYC180734)。

摘　　要：以1,4-丁二醇及不同比例的丁二酸、辛二酸为原料,合成了2种均聚酯(聚丁二酸丁二醇酯、聚辛二酸丁二醇酯)和4种聚(丁二酸-co-辛二酸丁二醇)共聚酯。采用衰减全反射傅里叶变换红外光谱仪、核磁共振波谱仪、差示扫描量热仪、X射线衍射仪和热重分析仪等对聚酯的分子结构、热性能、结晶性能和力学性能进行表征。结果表明,当引入60%的辛二酸单元时,共聚酯的熔点最低,结晶度最小,断裂伸长率较高且8 h后可完全降解,共聚酯的力学性能也变得更加优异。Two kinds of homopolyesters(polybutylene succinate,polybutylene succinate)and four kinds of poly(butylene succinate-co-suberic acid)copolyesters were synthesized using 1,4-butanediol and different proportions of succinic acid and suberic acid as raw materials.The molecular structure,thermal properties,crystallization properties and mechanical properties of the copolyesters were characterized by attenuated total reflection Fourier transform infrared spectrometer,nuclear magnetic resonance spectrometer,differential scanning calorimeter,X-ray diffractometer and thermogravimetric analyzer.The results show that when 60% suberic acid unit was introduced,the copolyester has the lowest melting point,the lowest crystallinity,the higher elongation at break and the complete degradation after 8 h,and the mechanical properties of the copolyester become more excellent.

关 键 词：共聚酯 热性能 结晶性能 酶降解 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]