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Polymer Bulletin
Erschienen in: Polymer Bulletin 6/2016

30.11.2015 | Original Paper

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

verfasst von: F. M. Sannaningannavar, B. S. Navati, N. H. Ayachit

Erschienen in: Polymer Bulletin | Ausgabe 6/2016

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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.
Vorheriger Artikel Effect of layered silicates and reactive compatibilization on structure and properties of melt-drawn HDPE/PA6 microfibrillar composites
Nächster Artikel Application of SiO2 nanoparticles with double layer coverage consist of citric acid and l(+)-ascorbic acid for the production of poly(vinyl chloride)/SiO2 nanocomposite films with enhanced optical and thermal properties

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Literatur
1.
Mashimo S (1976) Dielectric study of chain motion of poly(p-chlorostyrene) in dilute solution. Macromolecules 9:91–97CrossRef
2.
Sengwa RJ, Kour K, Choudhary R (2000) Dielectric properties of low molecular weight poly(ethylene glycols). Polyr Int 49:599–608CrossRef
3.
Sengwa RJ (1998) Microwave dielectric relaxation in binary mixtures of Poly (ethylene glycols) in solutions. Polyr Int (UK) 45:202–206CrossRef
4.
Subramanian SK, McKenna GB (2010) A dielectric study of Poly(vinyl acetate) using a pulse probe technique. J Therm Anal Calorim 102:477–484CrossRef
5.
Sengwa RJ (2003) Microwave dielectric relaxation and molecular dynamics in binary mixtures of Poly (vinyl pyrrolidone-poly (ethylene glycol)s in non-polar solvent. Polymer Int (U.K) 52:1462–1467CrossRef
6.
Danch AL (2009) Dynamics of polymeric systems: Empirical formula of temperature dependence of relaxation time. Journal of Thermal Analysis and Calorimetry 98:601–607CrossRef
7.
8.
Vasheghani B, Rajabi FH, Ahmadi MH (2003) Influence of solvent on thermodynamic parameters and stability of some multicomponent polymer complexes involving an acrylic polymer, poly (ethylene imine) and poly (vinyl pyrrolidone)”. Polym Bull 58:553–563. doi:10.​1007/​s00289-006-0693-1 CrossRef
9.
Sengwa RJ, Choudhary R (2001) Microwave dielectric relaxation and molecular dynamics in binary mixtures of poly (propylene glycol) 2000 and Poly (ethylene glycols) of varying molecular weight in dilute solution. Polym Int (U.K) 50:433–441CrossRef
10.
Dutta K, Sit SK, Acharyya S (2003) Relaxation phenomena of polar non-polar liquid mixtures under low and high frequency electric field. Pramana 61:759–772CrossRef
11.
Chitoku K, Higasi K (1966) Dielectric relaxation and molecular structure. iii. relaxation times of aniline derivatives in benzene and dioxane. Bull chem Soc Japan 39:2160–2168CrossRef
12.
Rangra VR, Sharm DR (2004) Dielectric relaxation of binary mixtures. Indian J Pure Appl Phys 42:921–925
13.
Heston WM, Franklin AD, Hennely EJ, Smyth CP (1950) Microwave absorption and molecular structure in liquids. V. Measurement of the dielectric constant and loss of low-loss solutions. J Am Chem Soc 72:3443–3447CrossRef
14.
Eyring H (1941) Theory of rate processes. Mc Graw-Hill Book Co. Inc, New York
15.
Roberts S, Von-Hippel A (1946) A new method for measuring dielectric constant and loss in the range of centimeter waves”. J App Phys 17:610–616CrossRef
16.
Dakins TW, Works CN, Boggs PW (1944) A resonant-cavity method for measuring dielectric properties at ultrahigh frequencies. Trans AIEE (American Institute of Electrical engineers) 63:1092–1098
17.
Dakins TW, Works CN (1947) Microwave dielectric measurements. J App Phys 18:789–796CrossRef
18.
Smyth CP (1955) Dielectric behavior and structure. Mc-Graw Hill, New York
19.
Madhu-Mohan T, Sreehari-Satry S, Murthy VRK (2010) Microwave dielectric relaxation, thermodynamic and confirmation studies of hydrogen bonded binary mixtures of propan-1-01 with methyl benzoate and ethyl benzoate. Indian J pure appl phys 48:668–675
20.
Hosamani MT, Ayachit NH (2012) Activation energy ∆G τ * enthalpy ∆H τ * and entropy ∆S τ * of some indoles and certain of their binary mixtures”. J Therm Anal Calorim 107:1301–1306CrossRef
21.
Yamaguchi N, Sato M (2009) Dipole moment of poly(ethylene oxide) in solution and its dependence on molecular weight and temperature”. Polym J 41:588–594CrossRef
22.
Fattepur RH, Fattepur KH, Ayachit NH (2009) Estimation of entropy and enthalpy of a nematic liquid crystal using time domain reflectometry studies. J Therm Anal Calorim 98:601–607CrossRef
23.
Sannaningannavar FM, Ayachit NH, Deshpande DK (2006) On the effect of temperature on dielectric relaxation time of some phenols and certain of their binary mixtures”. J Mol Liq 124:124–126CrossRef
24.
Vasan ST, Ayachit NH, Deshpande DK (2006) On the effect of temperature on dielectric relaxation time of some benzene derivatives and certain of their binary mixtures. Phys Chem Liq 44:513–519CrossRef
25.
Sannaningannavar FM (1991) “Studies of some physical properties of certain organic compounds,”Ph D Thesis In physics, Karnatak University, Dharwad, Karnataka, India
26.
Sannaningannavar FM, Navati BS, Ayachit NH (2012) Temperature dependence studies on dielectric relaxation and electric dipole moment of poly (ethylene glycol). J Macromol Sci Part B Phys. 51:393–401CrossRef
27.
Sannaningannavar FM, Navati BS, Ayachit NH (2012) Thermodynamic parameters of poly(ethylene glycol) from dielectric relaxation studies. J Appl Polym Sci 126:375–379CrossRef
28.
29.
30.
Kumar S, Periyasamy P, Jeevanandham P (2011) Dielectric relaxation studies of binary liquid mixture of a few glycols with 1, 4-Dioxane. Int J Chem Tech Res 3:369–375
31.
Debye P (1929) Polar molecules. Chemical Catalog Co, New York, p 90
32.
GopalaKrishna KV (1957) A method of determining the dipole moment and relaxation time from microwave measurements. Trans Farad Soc 53:767CrossRef
33.
Cole KS, Cole RH (1941) Dispersion and absorption in dielectrics - I alternating current characteristics. J Chem Phys 9:341CrossRef
34.
Calderwood H, (1997) McGraw-Hill Encyclopaedia of Science and Technology, pp. 249–253 :Permittivity, McGraw-Hill
35.
Havriliak S, Negami S (1967) A complex plane representation of dielectric and mechanical relaxation processes in some polymers. Polymer 8:161–190CrossRef
36.
Sengwa RJ (2003) A comparative dielectric ethylene glycol and propylene glycol at different temperatures. J Mol Liq 108:47CrossRef
37.
Whiffen DH, Thompson HW (1946) Measurements on the absorption of microwaves. Trans Farad Soc 42A:A114CrossRef
38.
Sengwa RJ (2003) A comparative dielectric ethylene glycol and propylene glycol at different temperatures. J Mol Liq 108:47CrossRef
39.
Pochylski M, Aliotta F, Błaszczak ZJ, Gapin J (2005) ´ Structural relaxation processes in polyethylene glycol/ccl4 solutions by brillouin scattering. J Phys Chem B 109:4181CrossRef
40.
Sannaningannavar FM, Patil SN, Navati BS, Melavanki RM, Ayachit NH (2013) Studies on thermodynamic properties of pure poly(ethylene glycol)-400 in the temperature range 299–363 K using volume expansivities. Polym Bull 70:3171CrossRef
41.
Sannaningannavar FM, Patil SN, Navati BS, Melavanki RM, Ayachit NH (2014) Thermodynamic parameters of dilute solutions of a polymer in benzene at varying temperatures and concentrations. J Therm Anal Calorim 115:1813CrossRef
Metadaten
Titel
Activation energy (ΔG*), enthalpy (ΔH*), and entropy (ΔS*) of poly(ethylene glycol) using Higasi method
verfasst von
F. M. Sannaningannavar
B. S. Navati
N. H. Ayachit
Publikationsdatum
30.11.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 6/2016
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-015-1571-5

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