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Int. J. Mol. Sci. 2009, 10(3), 1261-1270; doi:10.3390/ijms10031261

Dielectric Properties of Binary Solvent Mixtures of Dimethyl Sulfoxide with Water

1,* , 1
1 College of Electronics and Information Engineering, Sichuan University, Chengdu, 610064, P.R. China 2 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 / Revised: 8 March 2009 / Accepted: 11 March 2009 / Published: 17 March 2009
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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 Binary Solvent; Dielectric properties; Activation energy; MD
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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.

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