The temperature dependence of the complex dielectric permittivity of ten primary amines (from propylamine to dodecylamine) has been measured at frequencies of 2 MHz and 3.26, 9.23, 15.05 and 35.25 GHz. From the analysis of the experimental results the authors conclude that the Davidson-Cole model is the most suitable to describe the dielectric relaxation phenomena in those amines. For this model they obtain the usual relaxation process characteristic parameters; that is to say the relaxation time, tau 0, and the constant beta which expresses the typical asymmetry of the relaxation times' zero-distribution function. The influence of the chain length and the behaviour of the NH2 group in the relaxation process is shown. Finally, the dielectric behaviour of the amines has been compared with that of their analogous alcohols.
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