Zn-Co DMC催化合成环氧丙烷-二氧化碳共聚物

journal6 ›› 2009, Vol. 30 ›› Issue (6): 86-90.

Zn-Co DMC催化合成环氧丙烷-二氧化碳共聚物

（1．吉首大学化学化工学院，湖南吉首 416000；2.浙江大学高分子科学与工程系，浙江杭州 310027）

出版日期:2009-11-25 发布日期:2012-04-20
作者简介:吴元祥（1986-），男，吉首大学化学化工学院硕士生，主要从事高分子材料研究.
基金资助:
国家自然科学基金资助项目（20704034）;湖南省自然科学基金资助项目(07JJ6012)

Copolymerization of Propylene Oxide with Carbon Dioxide Catalyzed by Zn-Co Double Metal Cyanide Complexes

(1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;2.Department of Polymer Science and Engineering,Hangzhou University,Hangzhou 310027,China)

Online:2009-11-25 Published:2012-04-20

摘要/Abstract

摘要：制备了基于Zn₃[Co(CN)₆]₂的双金属氰化络合物催化剂，考察了在不同反应条件下催化环氧丙烷/二氧化碳共聚反应的催化性能以及反应条件对产物组成的影响.结果表明：该催化剂能高效催化共聚反应，催化效率可达2 000 g/g Zn₃[Co(CN)₆]₂以上.共聚产物经FT-IR和1H NMR表征，在适宜反应条件下共聚物中二氧化碳摩尔分数可达到0.3以上，产物中也有少量环加成产物碳酸亚丙酯，较低的温度和较高的压力有利于二氧化碳转化为共聚物.

关键词： 双金属氰化络合物, 环氧丙烷, 二氧化碳, 共聚合

Abstract: Double metal cyanide complex (DMC) based on Zn₃[Co(CN)₆]₂ was prepared and employed as catalyst for the copolymerization of propylene oxide and carbon dioxide.Effects of reaction conditions on catalytic performance and the compositions of products were investigated.The results show that these catalysts demonstrate highly catalytic activity over 2 000 g copolymer per gram of Zn₃[Co(CN)₆]₂.The copolymers prepared were characterized by FT-IR,1H NMR,and the molar fraction of CO₂ for copolymer (FCO₂) was as high as 0.3 under optimum condition,coupling product of propylene carbonate was also identified as co-product.It is also found that lower temperature and high reaction pressure are favorable for incorporation of CO₂ into copolymer.

Key words: double metal cyanide complex, propylene oxide, carbon dioxide, copolymerization

吴元祥, 陈上, 吴显明, 张兴宏. Zn-Co DMC催化合成环氧丙烷-二氧化碳共聚物[J]. journal6, 2009, 30(6): 86-90.

WU Yuan-Xiang, CHEN Shang, WU Xian-Ming, ZHANG Xing-Hong. Copolymerization of Propylene Oxide with Carbon Dioxide Catalyzed by Zn-Co Double Metal Cyanide Complexes[J]. journal6, 2009, 30(6): 86-90.

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