Issue 25, 2012

Harnessing Hansen solubility parameters to predict organogel formation

Abstract

Hansen solubility parameters predict the capacity of molecular gels to form in a vast array of organic solvents. The prediction ability for 12-hydroxystearic acid is closely associated with the hydrogen-bonding Hansen solubility parameter (δh). Solvents with a hydrogen-bonding Hansen solubility parameter less than 4.7 MPa1/2 produce clear organogels, opaque organogel formed between 4.7 < δh < 5.1 MPa1/2 and solutions remained when the hydrogen-bonding Hansen solubility parameter is greater than 5.1 MPa1/2. Furthermore, the critical gelator concentration is linearly correlated with the hydrogen-bonding Hansen solubility parameter. Solvents with the same functional group, which varied only by chain length, have correlations between the static relative permittivity, Hansen solubility parameter, dispersive HSP, polar HSP and hydrogen-bonding HSP and the critical gelator concentration.

Graphical abstract: Harnessing Hansen solubility parameters to predict organogel formation

Article information

Article type
Paper
Submitted
02 Apr 2012
Accepted
09 May 2012
First published
10 May 2012

J. Mater. Chem., 2012,22, 12651-12658

Harnessing Hansen solubility parameters to predict organogel formation

J. Gao, S. Wu and M. A. Rogers, J. Mater. Chem., 2012, 22, 12651 DOI: 10.1039/C2JM32056H

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