Premium
Synergistically Converting Carbon Dioxide into Cyclic Carbonates by Metalloporphyrin‐Based Cationic Polymers with Imidazolium Functionality
Author(s) -
Liu Xiangying,
Zhou Farong,
Chen Min,
Xu Wei,
Liu Hongbo,
Zhong Jianjiao,
Luo Rongchang
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202004338
Subject(s) - cationic polymerization , chemistry , porphyrin , cycloaddition , ionic liquid , nucleophile , polymer chemistry , polymer , zinc , pyrrole , combinatorial chemistry , organic chemistry , catalysis
Considering to the synergistic activation behavior in the cycloaddition reaction of CO 2 to epoxides, the integration of metalloporphyrins and nucleophilic halide anions to afford functional organic polymers is one of the most important approaches and still remains challenging. Herein, a class of novel porphyrin‐based cationic polymer (Por‐CP) has been successfully prepared through a one‐pot and atom‐efficient polycondensation of pyrrole and tailorable imidazolium‐based ionic liquid bearing trialdehyde groups in refluxed propanoic acid. Subsequently, a direct metalation of Por‐CP with zinc acetate resulted in the formation of a zinc porphyrin‐based cationic polymer (ZnPor‐CP). The rigid and charged ZnPor‐CP having spatially‐separated active Zn‐porphyrin sites and abundant imidazolium functionalities in the covalently‐linked skeletons can cooperatively promote the reaction under mild conditions, thereby achieving an efficient unification of high activity and good recyclability.