Abstract
Solvent-induced ordering phenomena of a liquid-crystalline polymer, characterized by having moderate flexibility in the main chain and a highly flexible lateral substituent, was investigated in different liquids. Diffusion and sorption were measured at room temperature. The solvent-uptake kinetics were found either Fickian or anomalous, depending on the solubility parameter of the liquids. The curve of weight uptake of the different solvents, reported as a function of the solubility parameters, shows a maximum correspondent to chloroform. Liquids with low solubility parameter, as pentane and n-hexane, do not induce any change in the structural organization of the starting sample, whereas ordering phenomena are evident for all the solvents that strongly interact with the liquid crystalline sample.
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