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Dielectric properties of polyester resins—1 |
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| Authors: | F Legros A Fourrier-Lamer D Le Pen A Gourdenne |
| Institution: | 1. Université Pierre et Marie Curie, Laboratoire de Dispositifs Infrarouge (ERA CNRS 365), tour 12, 2ème étage, 4 place Jussieu, 75230 Paris, Cedex 05 France;2. Ecole Nationale Supérieure de Chimie, Laboratoire de Physico-Chimie des Hauts Polymères, 118, rte de Narbonne, 31077 Toulouse, Cedex, France |
| Abstract: | The dielectric properties of unsaturated polyester resins mixed with styrene have been investigated in the microwave 1–12 GHz range. The frequency dependence of the permittivity (ar′andar′′) is typical of an orientational polarization relaxation process. A Davidson-Cole like model fits the experimental results reasonably well. A hypothesis on the molecular process is discussed, correlating the influence of temperature and sample composition. |
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