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Issue 21, 2013
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Stabilization of electrophoretically adhered gel-interfaces to construct multi-layered hydrogels

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Abstract

The stabilization of electrophoretically adhered hydrogels by rearranging the surface interdigitating chain segments across the interface was investigated for the preparation of adhered multilayer hydrogels. Two hydrogels were adhered by electrophoresis with the formation of a polyion complex and the entanglement of the linear chains with networks. We then investigated the relationship between the swelling ratios of the gels and the molecular weight of the polyelectrolyte inside the gels for the electrophoretic adhesion of hydrogels. A deswelling/re-swelling process of the adhered hydrogels induced resistance against bending stress, ionic strength, and inverse voltage because of a rearrangement of the surface interdigitating chain segments across the interface. Therefore, adhered (PAAm/PNIPAAm)13PAAm multi-layer hydrogels, which showed uniaxial movement in response to temperature were prepared.

Graphical abstract: Stabilization of electrophoretically adhered gel-interfaces to construct multi-layered hydrogels

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Publication details

The article was received on 24 Jan 2013, accepted on 25 Mar 2013 and first published on 26 Mar 2013


Article type: Paper
DOI: 10.1039/C3RA40409A
Citation: RSC Adv., 2013,3, 7947-7952
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    Stabilization of electrophoretically adhered gel-interfaces to construct multi-layered hydrogels

    T. Asoh, E. Kawamura and A. Kikuchi, RSC Adv., 2013, 3, 7947
    DOI: 10.1039/C3RA40409A

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