Abstract
The nonlinear dielectric effect (NDE) measurements of nonanol, undecanol, and dodecanol in the vicinity of the melting point were performed to examine and to develop the hypothesis on pretransition...
Highlights
IntroductionNonlinear dielectric measurements of solid−liquid phase transition in medium-chain, aliphatic alcohols were inspired by the previous study of 1-decanol conducted by the authors.[1]
Nonlinear dielectric measurements of solid−liquid phase transition in medium-chain, aliphatic alcohols were inspired by the previous study of 1-decanol conducted by the authors.[1]In the mentioned paper, the authors have shown that in the vicinity of the melting point the nonlinear dielectric effect (NDE) increases considerably
A positive NDE effect was obtained in the vicinity of the critical point in binary liquid mixtures.[5−10] In the latter case, the positive NDE increment was explained as a result of deformation of concentration fluctuations caused by the strong electric field
Summary
Nonlinear dielectric measurements of solid−liquid phase transition in medium-chain, aliphatic alcohols were inspired by the previous study of 1-decanol conducted by the authors.[1]. The authors have shown that in the vicinity of the melting point the nonlinear dielectric effect (NDE) increases considerably. This increase was attributed to the emergence of the rotator state, followed by surface premelting. This concept needed verification in other alcohols. Nonlinear dielectric effect measurements are based on the study of the difference between low- and high-field dielectric permittivity. The electric permittivity can be described by the following function of electric field intensity (E)
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