Abstract
A series of zinc(II) porphyrin-based ionic porous organic polymers [ZnTPyPBr4/DVB(1:m)-iPOP (m = 10, 20, 30, 40)] were synthesized by the free-radical copolymerization of pyridinium–functionalized Zinc(II) porphyrin (ZnTPyPBr4) and divinylbenzene (DVB) through solvothermal method and characterized successfully. The iPOPs had high specific surface areas, relative high CO2 adsorption capacity, abundant dual-function sites (Zn and Br-) and high catalytic efficiency for the cycloaddition reaction of CO2 and epoxides under mild conditions (80 ℃，0.5 MPa CO2). In particular, ZnTPyPBr4/DVB(1:30)-iPOP displayed the highest catalytic activity with a conversion of 99 % for the cycloaddition of CO2 and epichlorohydrin, wide applicability for different epoxides and could be recycled five times with almost no loss of activity. Notably, the kinetic experiments demonstrate that ZnTPyPBr4/DVB(1:30)-iPOP exhibited a low activation energy (22.64 kJ mol−1) for the cycloaddition reaction of CO2 and epichlorohydrin in the absence of solvent and cocatalyst.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
