Open AccessPreparation and Properties of Silane Molecular Sieve Supported Composite Polyether Ionic Liquids Catalysts
Author(s) -
Zhongyi Cui,
Liying Guo
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/729/1/012037
Subject(s) - ionic liquid , molecular sieve , catalysis , propylene oxide , silane , selectivity , composite number , imidazole , cycloaddition , ionic bonding , chemistry , materials science , polymer chemistry , chemical engineering , organic chemistry , polymer , composite material , ion , ethylene oxide , copolymer , engineering
In this work, three composite polyether imidazole ionic liquids (PIILs) supported on molecular sieve (MCM-22) with terminal hydroxyl, carboxyl and amino groups were synthesized with the help of silane coupling agent 3-chloropropyltriethoxysilane (CPTES). They were used for cycloaddition of CO 2 and propylene oxide (PO) in a fixed-bed reactor. The results showed that MCM-22-CPTES-HOOC-[PECH-MIM]Cl/[ZnBr 2 ] was the best catalytic properties in this reaction. The conversion rate and selectivity were 92.7% and 82.7%.