- Synthesis and Mesomorphic Properties of 4,4'-Di(n-Alkyl)Stilbenes
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A new synthetic method to obtain only trans-isomers of 4,4'-di(n-alkyl)stilbenes is reported.It was found that these series of alkyl-substituted stilbenes exhibit two and three mesophases for n = 8, 9 and 10 and n = 11 and 12 respectively.The identification of the liquid crystalline phases has been carried out by miscibilty tests, microscopic observations and X-ray measurements.The present study shows that all mesophases are characterized by a monolayer structure with either a pseudohexagonal (SG) or a herringbone (SH) arrangement of the molecular planes.Keywords: liquid crystal, stilbene, smectic G phase, smectic H phase
- Belarbi-Massouras, Z.,Takagi, A.,Ema, H.,Hasabe, H.,Ohta, K.,et al.
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p. 147 - 160
(2007/10/02)
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