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

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 5◦C to 50◦C. 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 exponents α and β 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.