Low-frequency dielectric properties and conductivity of a polyvinylcaprolactam-water systemстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The dielectric relaxation and conductivity of polyvinylcaprolactam (PVCL)-water systems of different compositions (with water contents of similar to 1, 5, and 24 wt %) were studied by means of dielectric spectroscopy (10(-1)-10(7) Hz) at -100-50A degrees C. It was found that the conductivity of samples with a low content of water upon cooling has an activation character, whereas a cooperative mechanism of conduction holds for the PVCL-water system with 24 wt % water, which switches to an activation character of interactions of water with polymer changes in the course of a glass transition.