以稀土氧化物为催化剂合成聚丁二酸丁二醇酯  

Synthesis of poly butylene succinate by rare earth oxides catalysts

作　　者：崔春娜[1] 黄继涛[1] CUI Chun-na HUANG Ji-tao(Chemistry Department of Ningde Normal University, Ningde, Fujian 352100, China)

机构地区：[1]宁德师范学院化学系,福建宁德352100

出　　处：《宁德师范学院学报（自然科学版）》2016年第4期367-371,共5页Journal of Ningde Normal University(Natural Science)

基　　金：福建省自然科学基金面上项目(2016J01740);福建省教育厅中青年教师项目(JA15555;JA15554);宁德师范学院青年项目(2014Q52)

摘　　要：聚丁二酸丁二醇酯(PBS)是一种具备较高的熔点、良好的热性能、优异的加工性和完全可生物降解性的塑料.以稀土氧化物作为催化剂熔融缩聚合成PBS,探讨了最佳反应温度和反应时间,采用红外光谱和热重分析对合成的PBS进行表征和测试.结果表明,合成产物为目标产物,反应温度为220℃,缩聚反应时间为3 h时,可合成出粘均分子量8万左右的PBS,此方法合成的PBS具有良好的热稳定性.Poly butylene succinate （PBS） excellent workability and completely biode is a plastic of higher melting point, good thermal properties, gradable. PBS is synthesized with rare earth oxide as catalyst by melt polycondensation. The optimum reaction temperature and reaction time were investigated. And the product is characterized by infrared spectroscopy and thermogravimetric analysis. The results show that the synthetic product is PBS, viscosity average molecular weigh of PBS is about 80 000 in the synthesis condition 220 %and 3 h, and has a good thermal stability.

关 键 词：聚丁二酸丁二醇酯 熔融缩聚法 稀土氧化物 

分 类 号：TQ317.3[化学工程—高聚物工业]