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A Thermomorphic Polyethylene‐Supported Imidazolium Salt for the Fixation of CO 2 into Cyclic Carbonates
Author(s) -
Grollier Kevin,
Vu Nam Duc,
Onida Killian,
Akhdar Ayman,
Norsic Sébastien,
D'Agosto Franck,
Boisson Christophe,
Duguet Nicolas
Publication year - 2020
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.202000032
Subject(s) - chemistry , catalysis , polyethylene , solvent , epoxide , iodide , salt (chemistry) , methyl iodide , polymer chemistry , carbon dioxide , organic chemistry
An imidazolium catalyst supported on thermomorphic polyethylene (PE) was prepared from 1‐methylimidazole and polyethylene iodide (PE−I). The catalyst was characterized by 1 H and 13 C NMR, SEC and MALDI‐ToF mass spectrometry. Its catalytic activity was evaluated in the ring‐opening of epoxides with carbon dioxide to give cyclic carbonates under solvent‐free conditions. The catalyst proved to be active at low catalyst loading (down to 0.1 mol%) and allows the reaction to occur at low CO 2 pressure (1–5 bar) and moderate temperature (100 °C). A range of terminal and internal epoxides was converted to the corresponding cyclic carbonates with high yields and selectivities. The recyclability of the catalyst was studied and no significant loss of activity was observed after 5 runs.