Swelling and shrinking kinetics of a lamellar gel phase

Fairhurst, DJ ORCID: https://orcid.org/0000-0001-5311-0762, Baker, ME, Shaw, N and Egelhaaf, SU, 2008. Swelling and shrinking kinetics of a lamellar gel phase. Applied Physics Letters, 92 (17).

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Abstract

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
Identifiers:	Number Type 10.1063/1.2913762 DOI
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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