[KSCI] Korea Science Citation Index Service

Preparation and Swelling Behaviors of Hydrogel Composed of Alginate, Poly(N-isopropylacrylamide) and Polyaniline

Lee, Young Moo (School of Chemical Engineering, College of Engineering, Hanyang University)
Seo, Sung Mi (School of Chemical Engineering, College of Engineering, Hanyang University)
Lee, Sang Bong (Clean System Team, Korea Institute of Industrial Technology)

Publication Information

Korean Membrane Journal / v.6, no.1, 2004 , pp. 37-43 More about this Journal

Abstract

Comb-type graft hydrogels composed of alginate and poly(N-isopropylacrylamide) (PNIPAAm) were prepared to manifest rapid temperature and pH sensitivity. To appear the electro-sensitivity, the polyaniline, conducting polymer, was added into the matrix. The swelling kinetics and ratios were compared under the various compositions of polyaniline. The swelling behaviors revealed that conducting polymer/hydrogel composites could control the swelling ratio and kinetics. The addition of polyaniline in the matrix improved the thermal stability in comparison with that of the hydrogel without polyaniline. In temperature sensitivity, the adding the polyaniline into the matrix decreased the degree of change in the swelling ratio. The swelling ratios continuously increased with increasing pH values. The drug release rate from the hydrogel increased with the adding the polyaniline and the applying the direct voltage to the hydrogels.

Keywords

hydrogels; polyaniline; conducting polymer; electric stimulus alginate;

Citations & Related Records

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