Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry
Dielectric permittivity and relaxation dynamics of binary and ternary mixture of stearic acid on various concentration and their thermodynamic effects are studied. The static dielectric constant (ε0), dielectric permittivity (ε′) and dielectric loss (ε′′) are found by bilinear calibration. The relax...
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| Format: | Article |
| Language: | English |
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World Scientific Publishing
2017-08-01
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| Series: | Journal of Advanced Dielectrics |
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| Online Access: | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500278 |
| _version_ | 1818841858815557632 |
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| author | M. Maria Sylvester T. Ganesh D. J. S. Anand Karunakaran P. Senthilkumar Praveen G. Hudge A. C. Kumbharkhane |
| author_facet | M. Maria Sylvester T. Ganesh D. J. S. Anand Karunakaran P. Senthilkumar Praveen G. Hudge A. C. Kumbharkhane |
| author_sort | M. Maria Sylvester |
| collection | DOAJ |
| description | Dielectric permittivity and relaxation dynamics of binary and ternary mixture of stearic acid on various concentration and their thermodynamic effects are studied. The static dielectric constant (ε0), dielectric permittivity (ε′) and dielectric loss (ε′′) are found by bilinear calibration. The relaxation time (τ), dielectric strength (Δε) and the excess permittivity (εE) are found. The thermodynamic parameters such as enthalpy (ΔH), entropy (ΔS) and Gibb’s free energy (ΔG) are evolved. The significant changes in dielectric parameters are due to the intramolecular and intermolecular interactions in response to the applied frequency. The permittivity spectra of stearic acid–alcohol in the frequency range of 10MHz to 30GHz have been measured using picoseconds Time Domain Reflectometry (TDR). The dielectric parameters (ε0, ε′, ε′′) are found by bilinear calibration method. Influence of temperature in intermolecular interaction and the relaxation process are also studied. The FT-IR spectral analysis reveals that the conformation of functional groups and formation for hydrogen bonding are present in both binary and ternary mixtures of stearic acid. |
| first_indexed | 2024-12-19T04:32:46Z |
| format | Article |
| id | doaj.art-5c3dfa6a7dcc4d86a29201b3022bb2cd |
| institution | Directory Open Access Journal |
| issn | 2010-135X 2010-1368 |
| language | English |
| last_indexed | 2024-12-19T04:32:46Z |
| publishDate | 2017-08-01 |
| publisher | World Scientific Publishing |
| record_format | Article |
| series | Journal of Advanced Dielectrics |
| spelling | doaj.art-5c3dfa6a7dcc4d86a29201b3022bb2cd2022-12-21T20:35:51ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682017-08-01741750027-11750027-710.1142/S2010135X1750027810.1142/S2010135X17500278Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometryM. Maria Sylvester0T. Ganesh1D. J. S. Anand Karunakaran2P. Senthilkumar3Praveen G. Hudge4A. C. Kumbharkhane5PG & Research Department of Physics, Bishop Heber College, Bharthidasan University, Tiruchirapalli 620 017, Tamil Nadu, IndiaPG & Research Department of Physics, Rajah Serfoji Government College, Bharthidasan University Thanjavur 613 005, Tamil Nadu, IndiaPG & Research Department of Physics, Bishop Heber College, Bharthidasan University, Tiruchirapalli 620 017, Tamil Nadu, IndiaDepartment of Physics, Saranathan College of Engineering, Tiruchirapalli 620 012, Tamil Nadu, IndiaDepartment of Physics, S. I. C. E. Society’s Degree College of Arts, Science and Commerce, Ambernath, Thane, Maharashtra, IndiaSchool of Physical Sciences, Swami Ramanad Teerth Marthwada University, Nanded, Maharashtra, IndiaDielectric permittivity and relaxation dynamics of binary and ternary mixture of stearic acid on various concentration and their thermodynamic effects are studied. The static dielectric constant (ε0), dielectric permittivity (ε′) and dielectric loss (ε′′) are found by bilinear calibration. The relaxation time (τ), dielectric strength (Δε) and the excess permittivity (εE) are found. The thermodynamic parameters such as enthalpy (ΔH), entropy (ΔS) and Gibb’s free energy (ΔG) are evolved. The significant changes in dielectric parameters are due to the intramolecular and intermolecular interactions in response to the applied frequency. The permittivity spectra of stearic acid–alcohol in the frequency range of 10MHz to 30GHz have been measured using picoseconds Time Domain Reflectometry (TDR). The dielectric parameters (ε0, ε′, ε′′) are found by bilinear calibration method. Influence of temperature in intermolecular interaction and the relaxation process are also studied. The FT-IR spectral analysis reveals that the conformation of functional groups and formation for hydrogen bonding are present in both binary and ternary mixtures of stearic acid.http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500278TDRdielectric relaxationstearic acidthermodynamic parametersFT-IR |
| spellingShingle | M. Maria Sylvester T. Ganesh D. J. S. Anand Karunakaran P. Senthilkumar Praveen G. Hudge A. C. Kumbharkhane Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry Journal of Advanced Dielectrics TDR dielectric relaxation stearic acid thermodynamic parameters FT-IR |
| title | Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry |
| title_full | Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry |
| title_fullStr | Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry |
| title_full_unstemmed | Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry |
| title_short | Dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co-solvent using time domain reflectometry |
| title_sort | dielectric dispersion and thermodynamic behavior of stearic acid binary mixtures with alcohol as co solvent using time domain reflectometry |
| topic | TDR dielectric relaxation stearic acid thermodynamic parameters FT-IR |
| url | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500278 |
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