Swelling and shrinking kinetics of a lamellar gel phase

Fairhurst, D.J. ORCID: 0000-0001-5311-0762, Baker, M.E., Shaw, N. and Egelhaaf, S.U., 2008. Swelling and shrinking kinetics of a lamellar gel phase. Applied Physics Letters, 92 (17).

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We investigate the swelling and shrinking of L lamellar gel phases composed of surfactant and fatty alcohol after contact with aqueous poly(ethyleneglycol) solutions. The height change Δh(t) is diffusionlike with a swelling coefficient S: Δh=S√t. On increasing polymer concentration, we observe sequentially slower swelling, absence of swelling, and finally shrinking of the lamellar phase. This behavior is summarized in a nonequilibrium diagram and the composition dependence of S quantitatively described by a generic model. We find a diffusion coefficient, the only free parameter, consistent with previous measurements.

Item Type: Journal article
Publication Title: Applied Physics Letters
Creators: Fairhurst, D.J., Baker, M.E., Shaw, N. and Egelhaaf, S.U.
Publisher: American Institute of Physics
Date: 2008
Volume: 92
Number: 17
Rights: © 2008 American Institute of Physics
Divisions: Schools > School of Science and Technology
Record created by: EPrints Services
Date Added: 09 Oct 2015 10:58
Last Modified: 09 Jun 2017 13:46
URI: https://irep.ntu.ac.uk/id/eprint/20980

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