【作者】 张亚男； 卢凌彬； 张冲； 汪莉华； 林强；

【Author】 ZHANG Ya-nan LU Ling-bin ZHANG Chong WANG Li-hua LIN Qiang (Key Lab. of Tropic Biological Resource of Chinese Education Ministry, Material and Chemical Engineering School, Hainan University, Haikou 570228, China)

【机构】 海南大学材料与化工学院热带生物资源教育部重点实验室；

【摘要】 通过溶液共混法实现聚碳酸亚丙酯（PPC）与聚乙二醇（PEG）的共混改性,提高PPC的热性能、亲水性和降解性能。通过¹H-NMR、FTIR、XRD研究了共混物的相容性。表明聚合物之间没有发生化学反应,两者之间为简单的物理共混,相容性较好。共混物热性能的测试结果表明,共混物的玻璃化转变温度（T_d50%）和热分解温度(T_d50%)最高分别达到60和342℃,比纯PPC提高了38和107℃。共混物的亲水性随着PEG组分的增加得到了增强,比PPC提高23～45倍,共混物溶液降解性能最多比PPC提高10倍,PEG的加入使得PPC生物降解性能加倍提高。更多还原

【Abstract】 Blending modification of poly（propylene carbonate）（PPC） and polyethylene glycol （PEG） was finished by solution co-blending.The thermal performance,hydrophilicity and degradation of PPC were raised.The compatibility of blends was studied by means of ¹H-NMR,FITR and XRD.The results showed that no chemi- cal reaction had occurred,and the blending effect proved to be good.The thermal performance of blends indica- ted that the glass transition temperature（T_g）and T_d50% were 40℃and 107℃higher than that of PPC respective- ly.The water absorption rate of blends was 23-45 times higher than PPC.The degradation of blends in solution was 10 times of that of PPC.The biodegradation of PPC was doubled with PEG addition.更多还原