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Electric‐field‐sensitive polymers: Reversible bending of rod‐shaped polymer gels in salt solutions
Author(s) -
Choi Oe Soon,
Yuk Soon Hong,
Lee Hai Bang,
Jhon Mu Shik
Publication year - 1994
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.1994.070510220
Subject(s) - copolymer , sulfonic acid , polymer , materials science , bending , salt (chemistry) , aqueous solution , polymer chemistry , methyl methacrylate , methacrylate , chemical engineering , ionomer , composite material , chemistry , organic chemistry , engineering
Neutral gel (acrylamide [AAm] gel) and anionic gel (copolymer gel of 2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid [AMPSA] and butyl methacrylate [BMA]) were prepared to observe the bending phenomena in various salt solutions. The bending pattern of AAm gel was closely related to salts used in the aqueous media. The competition NMR technique was used to understand the interaction of salts with the polymer matrix. In the case of copolymer gel, the bending pattern did not show the salt dependence and the bending angle decreased after reaching a maximum. © 1994 John Wiley & Sons, Inc.