title: Organogel formation rationalized by Hansen solubility parameters: influence of gelator structure.
abstract: Some organic compounds form gels in liquids by forming a network of anisotropic fibres. Based on extensive solubility tests of four gelators of similar structures, and on Hansen solubility parameter formalism, we have probed the quantitative effect of a structural variation of the gelator structure on its gel formation ability. Increasing the length of an alkyl group of the gelator obviously reduces its polarity, which leads to a gradual shift of its solubility sphere towards lower δp and δh values. At the same time, its gelation sphere is shifted - to a much stronger extent - towards larger δp and δh values.
authors: Sorbonne Université, UPMC Univ Paris 06, UMR 8232, IPCM, Chimie des Polymères, F-75005 Paris, France. laurent.bouteiller@upmc.fr.
authors: Julien
authors: J
authors: Bonnet
authors: Gad
authors: G
authors: Suissa
authors: Matthieu
authors: M
authors: Raynal
authors: Laurent
authors: L
authors: Bouteiller