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Renewable Responsive Systems Based on Original Click and Polyurethane Cross‐Linked Architectures with Advanced Properties
Author(s) -
TremblayParrado KhantuttaKim,
Avérous Luc
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201901991
Subject(s) - polyurethane , furan , thermal stability , materials science , ultimate tensile strength , diol , oligomer , polymer chemistry , chemical engineering , composite material , organic chemistry , chemistry , engineering
A new chemical architecture from oleic acid, consisting of a diol structure containing pendant furan rings, denoted the furan oligomer (FO) was synthesized and fully characterized. The FO was integrated into a linear rapeseed‐based polyurethane (PU) backbone and cross‐linked through a Diels–Alder (DA) reaction by using pendant furan rings and a short polypropylene oxide‐based bismaleimide. This is the first time that a thermoreversible PU network based on vegetable oil has been reported. The effects of varying proportions of FO in linear and cross‐linked systems, by DA, were studied. These materials were analyzed by classic characterization techniques. The stability and recyclability of the cross‐linked materials were shown by successive reprocessing cycles and reanalyzing the mechanical properties. Self‐healing properties were macroscopically exhibited and investigated by tensile tests on healed materials. The resulting cross‐linked materials present a large range of properties, such as tunable mechanical and thermoresponsive behavior, good thermal recyclability, and self‐healing abilities.