- Tytuł:
- Dynamics and Phase Transitions of 4-Bromobenzylidene-4'-pentyloxyaniline and 4-Bromobenzylidene-4'-hexyloxyaniline as Studied by Dielectric Spectroscopy
- Autorzy:
-
Osiecka, N.
Massalska-Arodź, M.
Galewski, Z.
Chłędowska, K.
Wróbel, S.
Morito, T.
Yamamura, Y.
Saito, K. - Powiązania:
- https://bibliotekanauki.pl/articles/1399008.pdf
- Data publikacji:
- 2013-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
77.84.Nh
64.70.pp
64.70.M-
33.15.Bh - Opis:
- Significant differences in phase sequence and dynamics between 4-bromobenzylidene-4'-pentyloxyaniline (5BBA) and -bromobenzylidene-4'-heksyloxyaniline (6BBA) substances were detected by broadband dielectric spectroscopy. In the smectic A (6BBA), the smectic B (found in both substances) and the smectic E (5BBA) phases the relaxation was ascribed to reorientations of the molecules around the short axes. Slow dynamics detected in the smectic E and in two crystalline phases of 5BBA was ascribed to conformational changes of molecular chains. Coexistence of Cr(I) and Cr(II) conformationally disordered crystal (CONDIS) phases was observed and vitrification of Cr(II) was identified with help of polarizing microscopy.
- Źródło:
-
Acta Physica Polonica A; 2013, 124, 6; 913-916
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł