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Dielectric Properties of Binary Solvent Mixtures of Dimethyl Sulfoxide with Water
College of Electronics and Information Engineering, Sichuan University, Chengdu, 610064, P.R. China
2 State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Changping District, Beijing 102249, P.R. China
* Author to whom correspondence should be addressed.
Received: 6 February 2009; in revised form: 8 March 2009 / Accepted: 11 March 2009 / Published: 17 March 2009
Abstract: 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.
Keywords: Binary Solvent; Dielectric properties; Activation energy; MD
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Yang, L.-J.; Yang, X.-Q.; Huang, K.-M.; Jia, G.-Z.; Shang, H. Dielectric Properties of Binary Solvent Mixtures of Dimethyl Sulfoxide with Water. Int. J. Mol. Sci. 2009, 10, 1261-1270.
Yang L-J, Yang X-Q, Huang K-M, Jia G-Z, Shang H. Dielectric Properties of Binary Solvent Mixtures of Dimethyl Sulfoxide with Water. International Journal of Molecular Sciences. 2009; 10(3):1261-1270.
Yang, Li-Jun; Yang, Xiao-Qing; Huang, Ka-Ma; Jia, Guo-Zhu; Shang, Hui. 2009. "Dielectric Properties of Binary Solvent Mixtures of Dimethyl Sulfoxide with Water." Int. J. Mol. Sci. 10, no. 3: 1261-1270.