The influences of polymerization time on the polymerization were studied in detail.The structure and properties of PGLA(90/10) were analyzed by IR, 1H-NMR, DSC, TGA, capillary rheogeniometer.

• 研究了聚合过程中特性黏度、单体转化率等的变化规律，应用IR、1H-NMR、DSC、TG、毛细管流变仪等对聚合物的结构、热性能、流变性能进行了表征。