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采用溶液聚合法合成了三嵌段聚合物聚乙醇酸/聚乙二醇/聚乙醇酸,采用红外光谱、核磁共振、X射线衍射、DSC方法对聚合物进行了表征。聚合物的结晶度为57.95%,Tg和Tm分别为44.55℃和71.30℃。
The triblock polymer polyglycolic acid / polyethylene glycol / polyglycolic acid was synthesized by solution polymerization. The polymer was characterized by IR, 1HNMR, XRD and DSC. The crystallinity of the polymer was 57.95% and the Tg and Tm were 44.55 ° C and 71.30 ° C, respectively.