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Dielectric properties of substituted carboxylic acids

The series of chloromethylacetic acids was studied because trimethylacetic acid, also called pivalic acid, had an interesting dielectric behaviour. Since the substitution of chloro- for methyl- groups had been interesting for other compounds, it was expected to show a trend of properties for this series due to the effect of the chloro groups on the carboxyl part of the molecules. Unexpectedly, the feature expected to show the most effect of the substitution, the phase II-phase I transition in pivalic acid, ceased to exist in the chloro compounds.