Dynamics of n-p-(ethoxybenzylidene) p'-propylaniline (EBPA) in solid phases

Andrzej Bak; Antoni Kocot; Maria Massalska-Arodz

doi:10.1117/12.373710

14 December 1999 Dynamics of n-p-(ethoxybenzylidene) p'-propylaniline (EBPA) in solid phases

Andrzej Bak, Antoni Kocot, Maria Massalska-Arodz

Proceedings Volume 4017, Polymers and Liquid Crystals; (1999) https://doi.org/10.1117/12.373710
Event: International Conference on Dielectric and Related Phenomena '98, 1998, Szczyrk, Poland

Abstract

In both solid phases of EBPA the dielectric relaxation phenomenon has been observed in the frequency range from 1 Hz to 10 MHz. The process observed in a metastable phase K1 is stronger than this observed in a stable phase K2. Analysis of the temperature dependence of complex dielectric permittivity points to a non-Debye relaxation in each solid phase. THe composition of two Cole-Cole functions has been fitted successfully to the observed results. Each of two molecular motions extracted is of the Arrhenius type. Processes have the same activation energy barriers in a stable phase K2 and in a metastable phase K1.

Citation Download Citation

Andrzej Bak, Antoni Kocot, and Maria Massalska-Arodz "Dynamics of n-p-(ethoxybenzylidene) p'-propylaniline (EBPA) in solid phases", Proc. SPIE 4017, Polymers and Liquid Crystals, (14 December 1999); https://doi.org/10.1117/12.373710

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