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Proceedings Paper

X-ray diffraction study of the mesomorphism of some side chain cyclosiloxanes and polycarbosilanes
Author(s): Irma Sledzinska; Tomasz Ganicz; Jan Przedmojski; Joanna Soltysiak; Wlodzimierz A. Stanczyk
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Paper Abstract

An influence of a flexible spacer length on a formation of mesomorphic phases in two classes of organosilicon polymers with different backbones but the same mesogenic rigid core has been investigated by x-ray diffraction measurements completed by differential scanning calorimetry and optical microscopy. Depending on the spacer length, these materials form nematic and/or smectic A1 phases. The nematic phase with smectic C-like short range ordering was observed for the cyclosiloxanes. The dependence of the layer spacing in the smectic phase on the siloxane ring size was also investigated.

Paper Details

Date Published: 2 August 1995
PDF: 5 pages
Proc. SPIE 2372, Liquid Crystals: Materials Science and Applications, (2 August 1995); doi: 10.1117/12.215539
Show Author Affiliations
Irma Sledzinska, Warsaw Univ. of Technology (Poland)
Tomasz Ganicz, Ctr. of Molecular and Macromolecular Studies (Poland)
Jan Przedmojski, Warsaw Univ. of Technology (Poland)
Joanna Soltysiak, Industrial Chemistry Research Institute (Poland)
Wlodzimierz A. Stanczyk, Ctr. of Molecular and Macromolecular Studies (Poland)


Published in SPIE Proceedings Vol. 2372:
Liquid Crystals: Materials Science and Applications

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