کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5409362 | 1393363 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecular polarization, order parameter and dielectric study of a dimeric compound
ترجمه فارسی عنوان
قطبش مولکولی، پارامتر نظم و مطالعه دی الکتریک یک ترکیب دیمیریک
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Molecular polarization, order parameter and dielectric study of a dimeric liquid crystalline compound 7.O5O.7 is reported in this article. Vuk's and Neugebauer's methods were used to determine the molecular polarization and direct extrapolation method using birefringence data, as well as Vuks' method, Neugebaur's method, modified Vuks' method from Haller's extrapolation were used to calculate the order parameter of the compound. To investigate the dielectric relaxation parameters Cole-Cole plots were used. The Cole - Cole plots of the compound were semi-circular in nature and they exhibited non-Debye type of behaviour. To understand the electrical property more precisely, an electrical equivalent circuit model was design. Levenberg-Marquardt (LM) algorithm theoretical model was used to fit the experimental results. The designed circuit model could exactly replicate the experimental data and showed a precise fitting. Lorentz and internal field factor with variation of temperature is also reported in this article.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 224, Part A, December 2016, Pages 507-514
Journal: Journal of Molecular Liquids - Volume 224, Part A, December 2016, Pages 507-514
نویسندگان
Debanjan Bhattacharjee, Parameswara Rao Alapati, Ayon Bhattacharjee,