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Proceedings Paper

Secondary relaxation in polyepoxypropylcarbazole layers
Author(s): Putinas K. Mackus; Feliksas Kuliesius; Andrius Poskus
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Paper Abstract

The investigation of frequency-temperature dependences of complex dielectric permittivity in 10 - 105 Hz and 240 - 330 K regions has been performed for poly (epoxypropylcarbazole) (PEPCa) layers. The high-frequency relaxation (named as (beta) ) has been revealed beside (alpha) -one. The (beta) -relaxation region possesses the properties characteristic of secondary relaxation. The existence of two relaxation regions is likely to be due to free cooperative reorientational motion in the vicinity of Tg ((alpha) -relaxation), and to the restricted motion of the same dipolar units at lower temperatures ((beta) - relaxation).

Paper Details

Date Published: 8 April 1996
PDF: 4 pages
Proc. SPIE 2780, Metal/Nonmetal Microsystems: Physics, Technology, and Applications, (8 April 1996); doi: 10.1117/12.238176
Show Author Affiliations
Putinas K. Mackus, Vilnius Univ. (Lithuania)
Feliksas Kuliesius, Vilnius Univ. (Lithuania)
Andrius Poskus, Vilnius Univ. (Lithuania)

Published in SPIE Proceedings Vol. 2780:
Metal/Nonmetal Microsystems: Physics, Technology, and Applications
Benedykt W. Licznerski; Andrzej Dziedzic, Editor(s)

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