Tytuł artykułu
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Abstrakty
The effects of incorporating an azo dye moiety as a nonlinear optically active chromophore with benzoyloxyphenyl-substituted mesogens to a cyclosiloxane and silsesquioxane backbones are reported. The LC cyclic oligosiloxanes were characterized by 'H NMR, FTIR and UV-vis spectroscopy. The mesogenic properties of the oligomers w'ere studied by differential scanning calorimetry' (DSC) and polarizing microscopy (POM). The results show that all siloxanes exhibit smectic phase except for siloxane with azo-dye group only substituent, for which the LC state was not evident.
Czasopismo
Rocznik
Tom
Strony
79--84
Opis fizyczny
Bibliogr. 9 poz., rys., tab.
Twórcy
autor
autor
autor
- Industrial Chemistry Research Institute, 01-793 Warsaw, Rydygiera 8, Poland;, joanna.soltysiak@ichp.pl
Bibliografia
- 1. Denk, W., Strickler, J.H., Webb, W.W., Science 1990, 248, 73.
- 2. Kohler, R.H., Cao, J., Zipfel, W.R., Webb, W.W., Hansen, M.R., Science, 1997, 276, 2039.
- 3. Han, Y., Kim, D.,Kim, Y., J. Polym. Sei., Pari A: Polym. Chem., 1992, 30, 1177.
- 4. Ikeda, T., Horiuchi, S., Karanjt, D.B., Kurihara, S., Tazuke, S., Macromolecules, 1990, 23, 42.
- 5. Natansohn A., Rochon P., Chem Rev., 2002, 102, 4139.
- 6. D. Teyssie, S. Boileau, in Silicon-Containing Polymers ed.R.G.Jones et al., Kluwer Academic Publishers, Dordrecht, 2000, 593.
- 7. Sołtysiak, J., Stańczyk, W., Pluta, M., Śledzińska, I., Polimery, 1995, 40, 285.
- 8. Sołtysiak, J.T., Białecka-Floijańczyk, E., Kowalczyk, E., Przedmojski, J., Mol. Cryst. Liq. Crysl., 2004,411,217.
- 9. Sołtysiak, J.T., Białecka-Florjańczyk. E., Mol. Cryst. Liq. Cryst., 2006, 411, 217.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPC2-0006-0012