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Activation energy (ΔG*), enthalpy (ΔH*), and entropy (ΔS*) of poly(ethylene glycol) using Higasi method

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Abstract

The change in free energy of activation (\(\Delta G_{\tau }^{*}\)), enthalpy of activation (\(\Delta H_{\tau }^{*}\)), and entropy of activation (\(\Delta S_{\tau }^{*}\)) of poly(ethylene glycol) with average molecular mass 400 Dalton (PEG 400) in dilute solutions of benzene have estimated based on the theory of Eyring rate process. These thermodynamic parameters have been determined using most probable dielectric relaxation times (τ) at different temperatures using Higasi method. Based on the results, the behavior of the stated polymer in non-polar solvent is discussed. The obtained results are compared with those determined using Whiffen and Thompson model.

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Acknowledgments

The authors acknowledge the financial help from UGC, New Delhi and their respective colleges.

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Authors and Affiliations

  1. Department of Physics, Karnatak Science College, Dharwad, Karnataka, India

    F. M. Sannaningannavar & B. S. Navati

  2. Department of Physics, Rani Channnamma University, Belagavi, Karnataka, India

    N. H. Ayachit

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  1. F. M. Sannaningannavar
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  2. B. S. Navati
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  3. N. H. Ayachit
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Correspondence to N. H. Ayachit.

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Sannaningannavar, F.M., Navati, B.S. & Ayachit, N.H. Activation energy (ΔG*), enthalpy (ΔH*), and entropy (ΔS*) of poly(ethylene glycol) using Higasi method. Polym. Bull. 73, 1689–1700 (2016). https://doi.org/10.1007/s00289-015-1571-5

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  • DOI: https://doi.org/10.1007/s00289-015-1571-5

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