Swelling and Reswelling Characteristics of Cross-Linked Poly(vinyl alcohol)/Chitosan Hydrogel Film

Poly(vinyl alcohol) (PVA), hydrogel was prepared by using glutaraldehyde as a cross-linking agent. The blend semi-synthetic hydrogel film, consisting of PVA and chitosan, was prepared from a solvent-casting technique and characterized for their intermolecular interactions using infrared method. The...

Full description

Saved in:
Bibliographic Details
Published in:Journal of dispersion science and technology 2011-09, Vol.32 (9), p.1337-1344
Main Author: Abdeen, Z.
Format: Article
Language:English
Subjects:
Alcohol
Alcohols
Blending
Chemistry
Chitosan
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Crosslinking
Exact sciences and technology
General and physical chemistry
Glutaraldehyde
Hydrogels
Polymers
Polyvinyl alcohols
R&D
Research & development
reswelling
semi-synthetic
Swelling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Poly(vinyl alcohol) (PVA), hydrogel was prepared by using glutaraldehyde as a cross-linking agent. The blend semi-synthetic hydrogel film, consisting of PVA and chitosan, was prepared from a solvent-casting technique and characterized for their intermolecular interactions using infrared method. The swelling and reswelling behaviors, as well as mechanical properties of the synthetic and semi-synthetic gels were examined by weighing and tensile testing, respectively. Cross-linking the two types of polymer with glutaraldehyde produces a film with lower crystallinity and smaller swelling and reswelling degrees, but having improved mechanical properties. Also, the two types of films show a pH-dependent swelling characteristic. It was found that, the reswelling properties of synthetic hydrogels can be improved by blending PVA with certain ratio of natural polymer. This blending film, can be improve sandy soil properties for cultivation, such as, controlled release of water.
ISSN:0193-2691
1532-2351
DOI:10.1080/01932691.2010.505869