Furan-derived Schiff base covalent adaptable thermosets with recyclability and anti-flammability

Ping Zhang; Shuyu Jia; Ruishi Xie; Lin Chen; Ying Xiong

Green Chemical Engineering (Sep 2024)

Furan-derived Schiff base covalent adaptable thermosets with recyclability and anti-flammability

Ping Zhang,
Shuyu Jia,
Ruishi Xie,
Lin Chen,
Ying Xiong

Affiliations

Ping Zhang: State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
Shuyu Jia: State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
Ruishi Xie: State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
Lin Chen: State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
Ying Xiong: Corresponding author.; State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China

Journal volume & issue: Vol. 5, no. 3
pp. 364 – 373

Abstract

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Conventional thermosetting polymers, mostly derived from nonrenewable petroleum resources, are not reprocessable and recyclable due to their highly cross-linked three-dimensional networks and face the disadvantage of high flammability. To solve these issues, in this study, we synthesized a novel Schiff base covalent adaptable thermoset from a furan-derived tri-aldehyde monomer (TMFP) and a furan-derived di-amine monomer (DFDA). The as-prepared TMFP-DFDA-Vitrimer exhibited superior anti-flammability with a high limiting oxygen index (LOI) of 35.0% and a UL-94 V-0 rating, which was attributed to the excellent charring ability. Additionally, TMFP-DFDA-Vitrimer could also be conveniently recycled by chemical decomposition under a mixed hydrochloric acid/tetrahydrofuran (HCl/THF) solution. After recycling for 5 times, the thermal, mechanical, and flame retardant properties of the recycled TMFP-DFDA-Vitrimer retained almost unchanged compared to the original one. This work provides a prime instance to develop advanced thermosetting polymers from abundant furan-based compounds.

Published in Green Chemical Engineering

ISSN: 2666-9528 (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology: Chemical engineering; Science: Chemistry: Organic chemistry: Biochemistry
Website: https://www.keaipublishing.com/en/journals/green-chemical-engineering/

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