己内酯与碳酸亚乙酯的共聚研究

Study of Copolymerization of Ethylene Carbonate and ε-Caprola ctone

以ε-己内酯和碳酸亚乙酯为原料,使用催化剂氯化亚锡在常压氩气保护下引发ε-己内酯与碳酸亚乙酯开环共聚,得到了不同组成和摩尔质量的聚(ε-己内酯-碳酸亚乙酯)的共聚物。用FT-IR、1H-NMR、GPC对共聚物的结构进行了表征。结果表明,氯化亚锡引发ε-己内酯和碳酸亚乙酯开环共聚得到的是二者的线型无规共聚物,通过GPC和1H-NMR等方法检测得到了共聚物摩尔质量及其组成。

The copolymers composed of ethylene carbonate/ε-caprolactone were obtained by bulk ring-opening copolymerization of ethylene carbonate （EC） and ε-caprolactone （ε-CL）, with SnCl2 as catalyst for the purpose of biomedical applications, and the copolymer products were characterized by means of FTIR, ^1H-NMR and GPC. The results indicated that the prepared polymer was a linear atactic copolymer, the molecular weight and composi- tion of the copolymer were determined by means of GPC and ^1H-NMR.