摘要
采用熔融固相聚合制备了乳酸-氨基酸共聚物。结果表明:熔融聚合的最佳工艺条件为,催化剂是实验室制备,用量为0.5%￣1%、聚合时间为10h、氨基酸含量为0.5%￣1%;固相聚合的工艺条件为,聚合时间20h、催化剂为实验室制备。此工艺条件可制得相对分子质量大于50000的共聚物。
The copolymer of lactic acid and amino acid was prepared by the melt/solid polymerization. The result showed that the process condition was the content of catalyst：0.5%～1%,polymerization time： 10 h,the content of amino acid：0.5%～1%. The melt polymerization was polymerization time：20 h. Under the process conditions the molecular weight of the copolymer is above 50K.
出处
《上海化工》
CAS
2006年第3期15-18,共4页
Shanghai Chemical Industry
关键词
熔融-固相
聚合
催化剂
聚合时间
相对分子质量
Melt/solid
Polymerization
Catalyst
Polymerization time
Molecular weight
