RING OPENING POLYMERIZATION OF GLYCOLIDE  

作　　者：朱建民 张守中 邵耀民 屠天民 

机构地区：[1]Department of Textile Chemical Engineering

出　　处：《Journal of China Textile University(English Edition)》1991年第3期30-34,共5页

摘　　要：The influence of reaction temperature,reaction time, system pressure and catalysts on the re-duced viscosity(η_sp/C)and shear viscosity（η_a）of polyglycollic acid（PGA）is given in thispaper.The adequate polymerization condition of glycolide is selected according to the conditionalexperiments.The heat of polymerization and the activation energy at different conversion levelsare also measured by DSC.The influence of reaction temperature,reaction time, system pressure and catalysts on the re- duced viscosity(η_(sp)/C)and shear viscosity(η_a)of polyglycollic acid(PGA)is given in this paper.The adequate polymerization condition of glycolide is selected according to the conditional experiments.The heat of polymerization and the activation energy at different conversion levels are also measured by DSC.

关 键 词：ring OPENING polymerization activation energy polymerization heat DSC polyglycolide reaction condition biodegradable materials 

分 类 号：N[自然科学总论]