化工进展2017，Vol.36Issue(2)：581-587,7.DOI:10.16085/j.issn.1000-6613.2017.02.025
氯化1-氨基聚醚-3-甲基咪唑离子液体的制备与催化性能
Preparation and catalytic properties of chloride 1-amino polyether-3-methyl imidazole ionic liquid
摘要
Abstract
Polyepichlorohydrin(PECH)was synthesized by ring-opening polymerization with epoxy chloropropane. Then the amino-terminal polyepichlorohydrin was obtained by bromination and ammonification,and the polymer catalyst of chloride 1-amino polyether-3-methyl imidazole ionic liquid([H2N-PECH-MIM]Cl) was prepared from the amino-terminal polyepichlorohydrin and N-methyl imidazole. Finally,IR and NMR were used to characterize the chemical structure of [H2N-PECH-MIM]Cl,while TGA and GPC were used to determinate the thermal properties and molecular weight. Propylene carbonate was synthesized from propylene epoxide and carbon dioxide with the catalyst of [H2N-PECH-MIM]Cl. The effects of temperature,pressure and the number of recycles on catalytic properties were studied in terms of purity,conversion,selectivity and the turnover frequency(TOF). The catalytic performance of [H2N-PECH-MIM]Cl and [AeMIM]Br was compared. The results showed that the chemical structure of the prepared [H2N-PECH-MIM]Cl was right,and the yield was 71% and the catalytic performance was far better than that of the organocatalyst of [AeMIM]Br. [H2N-PECH-MIM]Cl could achieve the catalytic process efficiently without assistant catalyst and could be used 10 times under mild conditions. The purity,conversion rate,the selectivity and TOF were 99.0%,100%,96.9% and 3848h–1 respectively at 90℃,and 1.8MPa with the catalyst dosage of 1.0%.关键词
离子液体/催化剂/二氧化碳Key words
ionic liquid/catalyst/carbon dioxide分类
化学化工引用本文复制引用
郭立颖,马秀云,王立岩,邓莉莉,金先超..氯化1-氨基聚醚-3-甲基咪唑离子液体的制备与催化性能[J].化工进展,2017,36(2):581-587,7.基金项目
辽宁省科技厅自然科学基金（201602537）及辽宁省教育厅一般项目（L2014037）。 （）
