Transparent and semi-interpenetrating network P(vinyl alcohol)- P(Acrylic acid) hydrogels: pH responsive and electroactive application

Tippabattini Jayaramudu,Hyun-U Ko,Hyun Chan Kim,Jung Woong Kim,Yaguang Li,Jaehwan Kim

doi:10.1080/19475411.2017.1335247

Tippabattini Jayaramudu, Hyun-U Ko + Show 4 more

Open Access

https://doi.org/10.1080/19475411.2017.1335247

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Abstract

ABSTRACTIn this paper, poly(vinyl alcohol)-poly(acrylic acid) based transparent semi-interpenetrating network (semi-IPN) hydrogels were synthesized by using a solvent mixture of dimethyl sulfoxide and deionized water via free radical polymerization and subsequent freeze-thaw technique. The formation of the semi-IPN hydrogels was conformed from FT-IR spectra. The acrylic acid concentration effect on the hydrogels was investigated in terms of transparency, crystalline structure and thermal stability by using UV-visible spectroscopy, X-ray diffraction and thermogravimetric analysis. Swelling behaviours of the semi-IPNPAP hydrogels were studied in deionized water and different pH solutions. The compression and electroactive behaviour was tested in fully hydrated stage by using compression test and by applying electrical voltage. The hydrogels showed displacements under the applying voltage and detailed experiment is illustrated.

Highlights

Every year, there is a considerable usage of hydrogels in numerous technological fields such as biomedical, drug delivery, tissue engineering and artificial muscles because of their structural and specific properties
This paper reported the transparent semi-IPNPAP hydrogels, prepared with polyvinyl alcohol and poly(acrylic acid), by using the solvent mixture of dimethyl sulfoxide and DI water followed by free radical polymerization and subsequent freeze-thaw technique
This study provides a simple synthesis process of the semi-IPNPAP hydrogels

Summary

Introduction

There is a considerable usage of hydrogels in numerous technological fields such as biomedical, drug delivery, tissue engineering and artificial muscles because of their structural and specific properties. Swelling behaviours of the semi-IPNPAP hydrogels were studied in deionized water and different pH solutions. This article reports the synthesis of semi-IPN PVA-crosslinked PAA (semi-IPNPAP) hydrogels using DMSO and water solvent mixture via free radical and subsequent freeze-thaw technique.

Results

Conclusion