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Issue 9, 2009
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A new method for maintaining homogeneity during liquid–hydrogel transitions using low molecular weight hydrogelators

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Abstract

We demonstrate a generic new approach to produce homogeneous and reproducible hydrogels from low molecular weight hydrogelators using the controlled hydrolysis of glucono-δ-lactone (GdL). GdL slowly hydrolyses in water to give gluconic acid, which controllably lowers the pH. This hydrolysis is slower than the rate of dissolution; hence uniform pH change throughout the sample is possible. This results in homogeneous hydrogels that are unaffected by their shear or mixing history. A further advantage of this method is that it allows the gelation process to be monitored, giving further insight into the mechanism by which gelation occurs.

Graphical abstract: A new method for maintaining homogeneity during liquid–hydrogel transitions using low molecular weight hydrogelators

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Supplementary files

Article information


Submitted
23 Jan 2009
Accepted
27 Jan 2009
First published
10 Mar 2009

Soft Matter, 2009,5, 1856-1862
Article type
Paper

A new method for maintaining homogeneity during liquid–hydrogel transitions using low molecular weight hydrogelators

D. J. Adams, M. F. Butler, W. J. Frith, M. Kirkland, L. Mullen and P. Sanderson, Soft Matter, 2009, 5, 1856
DOI: 10.1039/B901556F

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