Abstract
The temperature dependence of the self-diffusion coefficients of those members of the p-alkoxybenzoic acid homologous series with n = 3 to 8 alkyl chain carbon atoms has been measured in the isotropic liquid phase and a comparison has been made between the activation energies for self-diffusion in the liquid and the solid phase. The self-diffusion coefficients at the isotropic-nematic transition temperatures were found to decrease monotonically with increasing number of alkyl chain carbon atoms.
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