Fully bio-based and intrinsically flame retardant unsaturated polyester cross-linked with isosorbide-based diluents.
Bio-based
Flame retardant
Mechanism
Reactive diluents
Unsaturated polyester resin
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Dec 2023
Dec 2023
Historique:
received:
24
05
2023
revised:
05
09
2023
accepted:
04
10
2023
medline:
1
11
2023
pubmed:
12
10
2023
entrez:
11
10
2023
Statut:
ppublish
Résumé
Unsaturated polyester resins (UPR) are composed of prepolymers and styrene diluents, while the former are produced by co-polycondensation between diol, unsaturated diacid and saturated diacid. In this work, bio-based UPR prepolymers were synthesized from bio-based oxalic acid, itaconic acid, and ethylene glycol, which were then diluted with bio-based isosorbide methacrylate (MI). Meanwhile, the phenylphosphonate were introduced into the molecular chains of prepolymers to achieve intrinsic flame retardancy of bio-based UPR. The potential of the reactive MI diluents as substitutes of volatile styrene, was also assessed through the volatility test, curing kinetics and gel contents analysis. For UPR materials with styrene diluents, the UPR materials can achieve UL-94 V
Identifiants
pubmed: 37820874
pii: S0045-6535(23)02641-3
doi: 10.1016/j.chemosphere.2023.140371
pii:
doi:
Substances chimiques
Polyesters
0
Flame Retardants
0
Excipients
0
Isosorbide
WXR179L51S
Oxalic Acid
9E7R5L6H31
Phosphorus
27YLU75U4W
Styrenes
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
140371Informations de copyright
Copyright © 2023. Published by Elsevier Ltd.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.