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Bio-based Poly(hydroxy urethane)s:Synthesis and Pre/Post-Functionalization.

Research paper by Haniffa H M A C M, Munawar M Khadija, Yern Chee YC Ching, Hazlee H Azil Illias, Cheng Hock CH Chuah

Indexed on: 22 Apr '21Published on: 20 Apr '21Published in: Chemistry - An Asian Journal



Abstract

New and emerging demand for polyurethane (PU) continues to rise over the years. The harmful isocyanate binding agents and their integrated PU products are at the height of environmental concerns, in particular PU (macro and micro) pollution and their degradation problems. Non-isocyanate poly(hydroxy urethane)s (NIPUs) are sustainable and green alternatives to conventional PUs. Since the early production of the NIPU in 1957, the hybridized NIPU materials have reached their exponential market value in 2019 and are expected to have a positive trend in the coming years. The secondary hydroxy groups of the urethane moiety of these NIPU have revolutionized them by allowing for adequate pre/post functionalization. This minireview highlights different strategies and advances in pre/post-functionalization used in biobased NIPU. We have performed a comprehensive evaluation of the development of new ideas in this field to achieve more efficient synthetic biobased hybridized NIPU processes through selective and kinetic understanding. © 2021 Wiley-VCH GmbH.