以辛酸亚锡为催化剂,通过开环聚合制备了三亚甲基碳酸酯( TMC)与己内酯(CL)的共聚物P(TMC-co-CL),并利用差示扫描量热仪(DSC)和热重分析仪(TGA)研究了P(TMC-co-CL)的热力学性能.结果表明,制备的P(TMC-co-CL)为无规共聚物,其玻璃化温度值随着TMC含量的增加而升高,符合Fox方程；当CL含量达到80％(物质的量分数,下同)时,共聚物出现熔点且随CL含量的增加而升高；此外,制备的P(TMC-co-CL)具有良好的热稳定性能,热分解温度在280℃以上.
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