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Issue 15, 2010
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Swelling and mechanical properties of polymer gels with cross-linking gradient

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Abstract

We report a novel approach to model the temperature dependence of the volume and elastic modulus of polymer gels with a cross-linking gradient based on the well-known Flory-Rehner (FR) theory. The proposed model consists of dividing the inhomogeneous polymer gel into an arbitrary number of independent and homogeneous layers that are treated independently by the FR approach. Experimental measurements of volume and elastic modulus with atomic force microscopy (AFM) on PNIPAM microgels, unexplained by the classical FR model, are in good agreement with the proposed model.

Graphical abstract: Swelling and mechanical properties of polymer gels with cross-linking gradient

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Publication details

The article was received on 21 Apr 2010, accepted on 10 Jun 2010 and first published on 28 Jun 2010


Article type: Communication
DOI: 10.1039/C0SM00275E
Citation: Soft Matter, 2010,6, 3455-3458
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    Swelling and mechanical properties of polymer gels with cross-linking gradient

    P. A. L. Fernandes, S. Schmidt, M. Zeiser, A. Fery and T. Hellweg, Soft Matter, 2010, 6, 3455
    DOI: 10.1039/C0SM00275E

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