Functionalization of Chitosan Oligomers: From Aliphatic Epoxide to Cardanol-Grafted Oligomers for Oil-in-Water Emulsions.
Journal
Biomacromolecules
ISSN: 1526-4602
Titre abrégé: Biomacromolecules
Pays: United States
ID NLM: 100892849
Informations de publication
Date de publication:
08 02 2021
08 02 2021
Historique:
pubmed:
21
1
2021
medline:
22
6
2021
entrez:
20
1
2021
Statut:
ppublish
Résumé
Hydrophobically modified chitooligosaccharides (COSs) were tested for suitability as an emulsifier in cationic bituminous emulsions. COSs with polymerization degrees (DPs) of 5, 10, 15, and 20 were obtained by nitrous acid deamination. A complete study on depolymerization and precise product and side product characterization was undergone. Chemical modification of COSs was performed to achieve amphiphilic structures using three fatty epoxides with a growing chain length butyl (C4), octadecyl (C9), and hexadecyl glycidyl ether (C16)). The grafting efficiency according to reaction conditions was established. Different substitution degrees (DSs) were obtained by modulating the ratio of fatty epoxy to NH
Identifiants
pubmed: 33470101
doi: 10.1021/acs.biomac.0c01576
doi:
Substances chimiques
Emulsions
0
Epoxy Compounds
0
Phenols
0
Water
059QF0KO0R
cardanol
4TB1UYZ2LN
Chitosan
9012-76-4
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM