中南民族大学学报（自然科学版）Issue(4)：7-14,8.
四苯基卟啉钴配合物催化环氧环己烷与CO2的交替共聚反应
Alternating Copolymerization of Carbon Dioxide and Cyclohexene Oxide Catalyzed by Cobalt Tetraphenylporphyrin Complexes
摘要
Abstract
A series of highly efficient cobalt tetraphenylporphyrin complexes(4d~4e were first reported)were synthesized and tested as catalysts for chemical fixation of carbon dioxide and cyclohexene oxide using dimethylaminopyridine as co-catalyst. With chlorocobalt tetraphenylporphyrin as the typical example,various factors influencing the catalytic activity, such as reaction temperature,time,pressure,solvent type,and the ratio of co-catalyst to catalyst and axial group,were investigated. The results indicated that the optimal conditions were 80℃,6 h,5 MPa with 1 equiv of cocatalyst. The axial anion of the complex and the substituents of the porphyrin influenced the catalytic activity greatly. IR and 1 H NMR confirmed that all the obtained polymers were alternating polycarbonate with high selectivity,with more than 99% content of carbonate linkage. The highest average molecular weight of the polycarbonate was up to 59600,and the catalytic activity was the highest among all reported porphyrin catalyst systems.关键词
二氧化碳/环氧环己烷/四苯基卟啉钴/配体设计/交替共聚Key words
carbon dioxide/cyclohexene oxide/cobalt tetraphenylporphyrin/ligand design/alternative copolymerization分类
化学化工引用本文复制引用
杨海健,张龙,耿永超,刘艳艳..四苯基卟啉钴配合物催化环氧环己烷与CO2的交替共聚反应[J].中南民族大学学报（自然科学版）,2015,(4):7-14,8.基金项目
国家自然科学基金资助项目 （）
