Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (1): 158.

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Studies on Carbosilane Liquid Crystalline Dendrimer

ZHANG Qi-Zhen, SUN Ji-Run, CUI Li, PAN Jing-Xi   

  1. Department of Chemistry, Shandong University, Jinan, 250100
  • Received:1996-08-01 Online:1997-01-24 Published:1997-01-24

Abstract: Aliquid crystalline carbosilane dendrimer has been synthesized in successive steps, resulting in the formation of defined, unimolecular compound.12 AZO-meso-units were attached on its periphery and it has a three dimentional, tree-like, starburst structure.Its phase behavior was K64 Sx115 SA123N138I.Compared with its AZO-meso-unit, 4-nitro-4'- (llydroxyhexyl)-azobenzene, whose phase behavior was K122N132I, its phase range was enlarged about 64 ℃ and two more liquid crystalline phases SA·Sx were found.

Key words: Dendrimer, Liquild crystal, Smectic phase

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