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Mechanism and process of chemomechanical contraction of polyelectrolyte gels under electric field
Author(s) -
Kishi R.,
Hasebe M.,
Hara M.,
Osada Y.
Publication year - 1990
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1990.220010104
Subject(s) - electrokinetic phenomena , polyelectrolyte , materials science , electric field , contraction (grammar) , biophysics , chemical engineering , chemical physics , nanotechnology , chemistry , composite material , polymer , physics , medicine , quantum mechanics , engineering , biology
When a water‐swollen polyelectrolyte gel is interposed between a pair of electrodes and DC current is applied, the gel undergoes electro‐chemomechanical contraction and concomitant water exudation both in water and in the air. In order to clarify the mechanism of the phenomenon, contractile experiments were carried out under various conditions and led to the conclusion that the contraction is essentially associated with electrically driven movement of hydrated micro‐ and macroions in the gel (electrokinetic process).