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Thermomorphic Polyethylene‐Supported Organocatalysts for the Valorization of Vegetable Oils and CO 2
Author(s) -
Akhdar Ayman,
Onida Killian,
Vu Nam Duc,
Grollier Kevin,
Norsic Sébastien,
Boisson Christophe,
D'Agosto Franck,
Duguet Nicolas
Publication year - 2021
Publication title -
advanced sustainable systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.499
H-Index - 24
ISSN - 2366-7486
DOI - 10.1002/adsu.202000218
Subject(s) - polyethylene , catalysis , isocyanate , organic chemistry , alkyl , chemistry , vegetable oil , rapeseed , iodide , polymer chemistry , polyurethane , food science
A range of thermomorphic polyethylene‐supported organocatalysts is prepared from N ‐alkyl imidazoles and polyethylene iodide (PEI) with good yields (85–92%) and high funtionality (98–99%). The catalytic activity of these species is studied for the ring opening of epoxidized methyl oleate with CO 2 to give the corresponding cyclic carbonate. The reaction is carried out at 100 °C to fully exploit the thermomorphic behavior of the organocatalysts. The optimized conditions (neat, 100 °C, and 20 bar of CO 2 ) are applied to a range of epoxidized fatty acids, including an epoxidized rapeseed oil, to give the corresponding carbonates with good yields (75–96%). The catalyst recycling is also studied, and no significant loss of activity is observed after ten runs. The fatty carbonates are important intermediates for the preparation of non‐isocyanate polyurethanes (NIPUs).