CHEMICAL MODIFICATION OF CHITOSAN WITH FATTY ACIDS
Journal Title: Progress on Chemistry and Application of Chitin and its Derivatives - Year 2012, Vol 0, Issue
Abstract
This paper presents the results of chitosan modification with fatty acids, namely linoleic and oleic acid. We used carbodiimide as the initiator for the reaction of carboxyl and aminoglycoside functional groups. The analysis of infrared spectra confirmed the formation of chitosan derivatives. Their hydrophilic-hydrophobic properties were determined by O/W emulsification and micelles formation in aqueous systems
Authors and Affiliations
Mirosława El Fray, Agata Niemczyk, Barbara Pabin-Szafko
NOVEL CHITOSAN DERIVATIVES AS FILMS WITH AN ANTIMICROBIAL EFFECT
This paper presents the results of chitosan acylation with linoleic (LA) and dilinoleic acid (DLA). The chemical structures of the new derivatives with different degrees of substitution of LA and DLA were assessed by Fou...
THE INFLUENCE OF CHITOSAN DEACETYLATION DEGREE ON REACTIVE BLACK 5 SORPTION EFFICIENCY FROM AQUEOUS SOLUTIONS
In the paper sorption capacity of chitosan having a deacetylation degree DD=75%, DD=85% and DD=90% relatively to the Reactive Black 5 were compared. Studies on the effectiveness of the dye sorption were carried out in a...
DETERMINATION OF THE HYDROLYTIC ACTIVITY OF WHOLE SALIVA USING CHITOSAN ASCORBATE AS A SUBSTRATE
The aim of this work was to evaluate of hydrolytic activity of whole saliva using chitosan ascorbate as a substrate. In this aim, the concentrations of N-acetyl-D-glucosamine were determined in saliva before addition of...
THERMAL AND ATOMIC FORCE MICROSCOPY (AFM) STUDIES OF MICROCRYSTALLINE CHITOSAN/POLY(VINYL ALCOHOL) MIXTURES
In the present paper, the results of thermal analysis (DSC and TGA) and atomic force microscopy studies of microcrystalline chitosan (MCCh) with poly(vinyl alcohol) (PVA) are presented. Microcrystalline chitosan is blend...
INVESTIGATION OF PHYSICOCHEMICAL PROPERTIES OF THE SOLID DISPERSIONS IN THE PRESENCE POLYMERIC CARRIER-CHITOSAN
The BCS class II includes drugs with low solubility and high permeability. Fenofibrate is an example of this class drugs. The aim of the study was to investigate the effect of chitosan on the saturation solubility of fen...