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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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Publication details

The article was received on 23 Jan 2009, accepted on 27 Jan 2009 and first published on 10 Mar 2009


Article type: Paper
DOI: 10.1039/B901556F
Citation: Soft Matter, 2009,5, 1856-1862
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    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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