The effect of dynamic vulcanization on the morphology and biodegradability of super toughened poly(lactic acid)/unsaturated poly(ether-ester) blends.
Biodegradable
Poly(lactic acid)
Super tough
Journal
International journal of biological macromolecules
ISSN: 1879-0003
Titre abrégé: Int J Biol Macromol
Pays: Netherlands
ID NLM: 7909578
Informations de publication
Date de publication:
31 Dec 2023
31 Dec 2023
Historique:
received:
17
08
2023
revised:
05
09
2023
accepted:
05
09
2023
medline:
27
11
2023
pubmed:
14
9
2023
entrez:
13
9
2023
Statut:
ppublish
Résumé
Preparing a super-tough polylactic acid (PLA) material while maintaining its biodegradability is a significant challenge. This study synthesized a biodegradable unsaturated poly(butylene succinate-co-fumarate)-poly(ethylene glycol) multiblock copolymer (PBSFG) and dynamically vulcanized it with PLA to obtain super-tough blends. The PBSFG self-vulcanized and formed a crosslinked "hard-soft" core-shell rubber phase in the blending process, where the PBSF segment acted as the core and PEG as the shell. As a result, the elongation at break and notched Izod impact strength of PLA increased significantly from 3 % to 66 % and from 3.2 to 58.0 kJ/m
Identifiants
pubmed: 37703967
pii: S0141-8130(23)03687-5
doi: 10.1016/j.ijbiomac.2023.126790
pii:
doi:
Substances chimiques
poly(lactide)
459TN2L5F5
Ether
0F5N573A2Y
Polyesters
0
Rubber
9006-04-6
Ethers
0
Ethyl Ethers
0
dicumyl peroxide
M51X2J0U9D
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
126790Informations de copyright
Copyright © 2023 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Rong YANG reports financial support was provided by National Natural Science Foundation of China. Rong Yang, Chaoyi Cai, and JinChun Li has patent issued to 202310913417.6.