Features of layer orderliness of cholesterol-containing polymers
1987; Elsevier BV; Volume: 29; Issue: 7 Linguagem: Inglês
10.1016/0032-3950(87)90409-6
ISSN1878-268X
AutoresYa.S. Freidzon, Ye.G Tropsha, Vladimir V. Tsukruk, В.В. Шилов, V.P. Shibayev, Yu.S. Lipatov,
Tópico(s)Chemical Thermodynamics and Molecular Structure
ResumoThe structure of cholesterol-containing homopolymers in the smectic and cholesteric mesophases has been studied by the X-ray method. It is shown that the polymers form a smectic mesophase of the SA-type in which the side mesogenic groups are arranged perpendicular to the planes of the smectic layers with the co-existence of two types of packing-with antiparallel disposition of the mesogenic groups and with overlap of the terminal aliphatic substituents. In the cholesteric mesophase layer order in the arrangement of the mesogenic groups exists. A scheme of packing of the macromolecules in the cholesteric mesophase is proposed.
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