Dielectric Properties of Binary Solvent Mixtures of Dimethyl Sulfoxide with Water

International Journal of Molecular Sciences

Li-Jun Yang¹  Xiao-Qing Yang¹  Ka-Ma Huang¹  Guo-Zhu Jia¹ 

[1] College of Electronics and Information Engineering, Sichuan University, Chengdu, 610064, P.R. China

关键词: Binary Solvent;    Dielectric properties;    Activation energy;    MD;   

DOI  :  10.3390/ijms10031261

来源: mdpi

【 摘 要 】

In this paper, the dielectric properties of water-dimethylsulfoxide (DMSO) mixtures with different mole ratios have been investigated in the range of 1 GHz to 40 GHz at 298 K by using a molecular dynamics (MD) simulation. Only one dielectric loss peak was observed in the frequency range and the relaxation in these mixtures can be described by a single relaxation time of the Davidson-Cole. It was observed that within experimental error the dielectric relaxation can be described by the Debye-like model (β ≈ 1, S.M. Puranik, et al. J. Chem. Soc. Faraday Trans. 1992, 88, 433 – 435). In general, the results are very consistent with the experimental measurements.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).