Dielectric Relaxation in Hydrogen Bonded Urea-Based Supramolecular Polymer N,N'-di(2,2-dipentylheptyl)urea

• Authors: J. Jadżyn , L. Bouteiller , J. Déjardin , G. Czechowski
• Languages of publication: EN

Abstracts

EN

Results of the dielectric relaxation studies, performed for supramolecular polymer formed by N,N'-di(2,2-dipentylheptyl)urea dissolved in carbon tetrachloride, are presented. The measurements were done for N,N'-di(2,2-dipentylheptyl)urea concentration up to about 7% (in mole fraction) in the frequency region from 100 kHz to 100 MHz and at the temperatures from 5ºC to 50ºC. The analysis of the experimental data were performed with the Havriliak-Negami equation. In the studied range of N,N'-di(2,2-dipentylheptyl)urea concentration and temperature, the obtained values of exponentsα andβ of the Havriliak-Negami equation are equal to 0.9±0.1 and 0.7±0.1, respectively, showing an anomaly in the dielectric relaxation behavior close to the Davidson-Cole type. Two examples of the modeling of dielectric properties of the supramolecular polymer solutions were presented.

Keywords

EN

61.82.Pv; 77.22.Gm; 81.16.Fg; 82.30.Rs

Discipline

• 82.30.Rs: Hydrogen bonding, hydrophilic effects
• 77.22.Gm: Dielectric loss and relaxation
• 81.16.Fg: Supramolecular and biochemical assembly
• 61.82.Pv: Polymers, organic compounds

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 110
• Issue: 4
• Pages: 495-504

Dates

published

2006-10

received

2006-05-29

Contributors

author

J. Jadżyn

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

L. Bouteiller

• Laboratoire de Chimie des Polymères, UMR 7610, Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France

author

J. Déjardin

• Groupe de Physique Statistique et Moléculaire, MEPS, Université de Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan Cedex, France

author

G. Czechowski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.110.495