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A multifunctional hydrogel with high‐conductivity, pH‐responsive, and release properties from polyacrylate/polyptrrole
Author(s) -
Lin Jianming,
Tang Qunwei,
Wu Jihuai,
Li Qinghua
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.31642
Subject(s) - polypyrrole , acrylate , interpenetrating polymer network , self healing hydrogels , materials science , polymer chemistry , chemical engineering , polymerization , aqueous solution , acrylate polymer , conductivity , absorption of water , chemistry , polymer , copolymer , organic chemistry , composite material , engineering
A simple, two‐step aqueous polymerization was introduced to synthesize a polyacrylate (PAC)/polypyrrole (PPy) hydrogel. The hydrogel had a semi‐interpenetrating network (semi‐IPN) structure with a loose, three‐dimensional PAC network and a one‐dimensional PPy conjugated chain. The presence of PPy led to a higher conductivity (9.1 mS/cm) for the PAC/PPy hydrogel. Because of the acrylate group on PAC and the imine group on PPy, the hydrogel showed typical pH sensitivity with two water absorption peaks at pH 4–6 and pH > 11. The loose semi‐IPN structure endowed the hydrogel with good load and release functions. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010