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V. E. MUSTEATA1, D. FILIP1, S. VLAD1, D. MACOCINSCHI1,*
An experimental study using dielectric spectroscopy measurements is made on molecular motions as function of temperature and frequency of polyurethane biocomposites, based on poly(ester urethane) and extracellular matrix components (hydrolyzed collagen, elastin, hyaluronic acid, chondroitin sulfate). Relaxation parameters were evaluated from isothermal dielectric spectra in -100÷-30 oC temperature interval by applying empirical Havriliak-Negami function. Relaxation times versus temperature were analysed for glass transition and secondary transitions by means of Arrhenius law and Vogel-Fulcher-Tammann-Hesse equation.
Dielectric relaxation, Polyurethane, Extracellular matrix, Biocomposites.
V. E. MUSTEATA, D. FILIP, S. VLAD, D. MACOCINSCHI, Dielectric relaxation of polyurethane biocomposites, Optoelectronics and Advanced Materials - Rapid Communications, 4, 8, August 2010, pp.1187-1192 (2010).
Submitted at: June 30, 2010
Accepted at: Aug. 12, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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