Temperature dependence of the permitivity of polymer composites

0185301 - UJF-V 20010028 RIV US eng J - Journal Article
Švorčík, V. - Králová, J. - Rybka, V. - Plešek, J. - Červená, Jarmila - Hnatowicz, Vladimír
Temperature dependence of the permitivity of polymer composites.
Journal of Polymer Science. Part B, Polymer Physics. Roč. 39, č. 8 (2001), s. 831-834. ISSN 0887-6266
R&D Projects: GA AV ČR IAA7011908; GA ČR GA203/99/1626; GA ČR GA102/01/1324; GA AV ČR KSK1010104
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 1.180, year: 2001

Polymethylmethacrylate (PMMA) films doped with derivatives of imidiazole with high dipole moments were prepared by spinning onto glass substrate. The films were provided with gold contacts on front and back side and their relative permittivity was determined from capacitance measured by standard LCRG capacitance meter 1 kHz frequency. The spatial distribution of the boron containing dopant was controlled using neutron depth profiling technique (NDP). It was found that the relative permittivity of the films increases with increasing dopant concentration and the permittivity of both, undoped and doped films is an increasing functionof the specimen temperature.
Permanent Link: http://hdl.handle.net/11104/0081707