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Dielectric relaxations in amorphous polymers with complex chain architectures

Abstract : By combining thermostimulated current and dynamic dielectric spectroscopies, the dielectric properties characteristic of the molecular mobility can be described over a very broad frequency range. The study of dielectric relaxations of phosphorus-containing dendrimers in the sub-glass transition region, and of poly(n-alkyl methacrylates) at and above the glass transition region allows us to gain insight into the molecular dynamics of complex architecture systems. From these sets of data we make an attempt to propose a structural interpretation of molecular mobility through the glass transition.
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Eric Dantras, Emeline Dudognon, Valérie Samouillan, Jérôme Menegotto, Alain Bernès, et al.. Dielectric relaxations in amorphous polymers with complex chain architectures. Journal of Non-Crystalline Solids, Elsevier, 2002, vol. 307-310, pp. 671-678. ⟨10.1016/S0022-3093(02)01530-2⟩. ⟨hal-01308048⟩



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