2017 Volume 17 Issue 12 Pages 615-622
Gelation behaviors and solvent effects of low molecular weight gelators such as poly(arylether) dendron derivatives bearing long alkyl chains and the two component system, which constructed from pyrene derivatives and naphthalene diimide derivatives, were investigated. Hansen solubility parameters allow us to gain a detailed understanding of the role of the solvents on the gelation behav iors. Teas plots for the gelators in the tested solvents can be divided into the following three regions: insoluble/precipitate, gelation, and soluble. Gel regions were located between the insoluble/precipi tate and soluble domains. From the correlation between polar solubility parameters (δa) of HSPs and the GNs, it can be assumed that the gelation behavior results from a moderate polarophobic effect in polar solvents and the gelator’s intermolecular forces such as hydrogen bondings and CT interactions in non-polar solvents.
