Hydrogel properties of electrospun polyvinylpyrrolidone and polyvinylpyrrolidone/poly(acrylic acid) blend nanofibers

Hydrogel nanofibers with high water-absorption capacity and excellent biocompatibility offer wide use in biomedical areas. In this study, hydrogel nanofibers from polyvinylpyrrolidone (PVP) and PVP/poly(acrylic acid) (PAA) blend were prepared by electrospinning and by subsequent heat treatment. The...

Full description

Saved in:
Bibliographic Details
Published in:RSC advances 2015-01, Vol.5 (67), p.54481-54487
Main Authors: Lubasova, Daniela, Niu, Haitao, Zhao, Xueting, Lin, Tong
Format: Article
Language:English
Subjects:
Blends
Electrospinning
Heat treatment
Hydrogels
Nanofibers
Polyvinylpyrrolidone
Stability
Swelling ratio
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:Hydrogel nanofibers with high water-absorption capacity and excellent biocompatibility offer wide use in biomedical areas. In this study, hydrogel nanofibers from polyvinylpyrrolidone (PVP) and PVP/poly(acrylic acid) (PAA) blend were prepared by electrospinning and by subsequent heat treatment. The effects of post-electrospinning heat treatment and PVP/PAA ratio on hydrogel properties of the nanofibers were examined. Heat treatment at a temperature above 180 °C was found to play a key role in forming insoluble and water-absorbent nanofibers. Both PVP and PVP/PAA nanofibers showed high morphology stability in water and excellent water retention capacity. The swelling ratio of PVP/PAA nanofibers declined with increasing heating temperature and decreasing PVP/PAA unit ratio. In comparison with dense casting films, these nanofiber membranes showed nearly doubled swelling ratio. Hydrogel nanofibers with high swelling ratio are prepared by electrospinning polyvinylpyrrolidone and poly(acrylic acid) blend followed by subsequent heat treatment.
ISSN:2046-2069
2046-2069
DOI:10.1039/c5ra07514a