Issue 15, 2010

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

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

Article information

Article type
Communication
Submitted
21 Apr 2010
Accepted
10 Jun 2010
First published
28 Jun 2010

Soft Matter, 2010,6, 3455-3458

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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