PDF全文下载：2011060566
董旭， 顾尧
(青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛 266042)
摘要： 利用双金属氰化物络合（DMC）催化环氧丙烷（PO）、马来酸酐（MA）与CO2三元共聚合成端羟基聚醚酯多元醇，并研究了MA的引入对聚合反应影响规律。实验发现，MA的引入可提高催化剂催化活性，缩短反应时间；适量的MA含量可减少副产物环碳酸酯的生成；另外，MA的引入会使聚合产物黏度明显增加，使得浇注聚氨酯材料时可操作性变差；聚合产物的相对分子质量分布较PO与CO2共聚物变窄；合成高相对分子质量聚醚酯多元醇时MA含量不要超过15%，相对分子质量降低，MA含量可以提高。
关键词： 聚醚酯多元醇； 三元共聚； DMC催化剂
中图分类号： TS 727文献标志码： A
Study on Novel Polyetherester Polyol
DONG Xu, GU Yao
（Key Laboratory of Rubber-plastics, Ministry of Education, Qingdao University of Science and Technology，Qingdao 266042，China）
Abstract: Hydroxyl-terminated polyetherester polyols were synthesized by copolymerization of PO, MA and CO2 catalyzed by DMC catalyst. The effects of MA on the polymerization were studied. It was found that the introduction of MA can improve the catalytic activity of the catalyst and shorten the polymerization time. The cyclic carbonate could be reduced while adding in appropriate amount of MA. In addition, it increased the viscosity of products obviously and then cased the operability of polyurethane materials poor. The molecular weight distribution was narrower compared with PO-CO2 copolymer, but still relatively wide. The content of MA was mostly no more than 15% when synthesizing high molecular weight polyetherester polyols, and can be increased with the molecular weight decreased.
Key words: polyetherester polyol; ternarypolymerization; DMC catalyst
收稿日期：2011-08-29
基金项目： 国家自然科学基金项目（50973049）.
作者简介： 董旭（1986—）, 女，硕士研究生.
