135329-93-0Relevant academic research and scientific papers
Synthesis and characterization of stilbene derivatives for possible incorporation as smart additives in polymers used as packaging films
Day, Gary M.,Howell, Owen T.,Metzler, Michael R.,Woodgate, Paul D.
, p. 425 - 434 (2007/10/03)
Several series of stilbene derivatives for possible use as smart additives in polymers used as packaging films have been prepared and characterized. Differential scanning calorimetry was performed on some of the stilbenes in order to determine any liquid crystal properties. Those compounds which had multiple phase transitions were also shown to have two liquid crystalline phases according to optical microscopy.
Synthesis and Mesomorphic Properties of 4,4'-Di(n-Alkyl)Stilbenes
Belarbi-Massouras, Z.,Takagi, A.,Ema, H.,Hasabe, H.,Ohta, K.,et al.
, p. 147 - 160 (2007/10/02)
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
