Polymerization of glycidyl methacrylate from the surface of cellulose nanocrystals for the elaboration of PLA-based nanocomposites.
Cellulose nanocrystals
Chemical grafting
Compatibilization
Poly(glycidyl methacrylate)
Poly(lactic acid)-based nanocomposites
Surface-initiated atom transfer radical polymerization
Journal
Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156
Informations de publication
Date de publication:
15 Apr 2020
15 Apr 2020
Historique:
received:
17
11
2019
revised:
17
01
2020
accepted:
20
01
2020
entrez:
20
2
2020
pubmed:
20
2
2020
medline:
22
10
2020
Statut:
ppublish
Résumé
Cellulose nanocrystals (CNCs) are used to design nanocomposites because of their high aspect ratio and their outstanding mechanical and barrier properties. However, the low compatibility of hydrophilic CNCs with hydrophobic polymers remains a barrier to their use in the nanocomposite field. To improve this compatibility, poly(glycidyl methacrylate) (PGMA) was grafted from CNCs containing α-bromoisobutyryl moieties via surface-initiated atom transfer radical polymerization. The novelty of this research is the use of a reactive epoxy-containing monomer that can serve as a new platform for further modifications or crosslinking. Polymer-grafted CNC-PGMA-Br prepared at different polymerization times were characterized by XRD, DLS, FTIR, XPS and elemental analysis. Approximately 40 % of the polymer at the surface of the CNCs was quantified after only 1 h of polymerization. Finally, nanocomposites prepared with 10 wt% CNC-PGMA-Br as nanofillers in a poly(lactic acid) (PLA) matrix exhibited an improvement in their compatibilization based on SEM observation.
Identifiants
pubmed: 32070519
pii: S0144-8617(20)30073-4
doi: 10.1016/j.carbpol.2020.115899
pii:
doi:
Substances chimiques
Epoxy Compounds
0
Methacrylates
0
Polyesters
0
poly(lactide)
459TN2L5F5
Cellulose
9004-34-6
glycidyl methacrylate
R8WN29J8VF
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
115899Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.