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Low and wide phase transition temperature dimesogenic compounds consisting of a cholesteryl and 4-( trans- 4-n-alkylcyclohexyl) phenoxy mesogens
Chunbo Zhang #,Zhiqi Cong,Bingzhu Yin *
college of science of yanbian university
*Correspondence author
#Submitted by
Subject:
Funding: 国家自然科学基金(No.20462001)
Opened online:30 May 2005
Accepted by: none
Citation: Chunbo Zhang,Zhiqi Cong,Bingzhu Yin.Low and wide phase transition temperature dimesogenic compounds consisting of a cholesteryl and 4-( trans- 4-n-alkylcyclohexyl) phenoxy mesogens[OL]. [30 May 2005] http://en.paper.edu.cn/en_releasepaper/content/2124
 
 
Unsymmetrical dimesogenic compounds having cholesteryl and 4-trans- (4-n -alkylcyclohexyl) phenoxy group were synthesized by condensation of cholesterylω-bromopentanoates with appropriate 4-trans- (4-n-alkylcyclo- hexyl) phenols. Structures and thermal phase behaviour of these dimers have been confirmed by IR, 1H NMR , elemental analysis,DSC,polarity microscopy and XRD measurements. Their thermal phase behaviour is significantly different to that of other cholesterol-based liqud crystalline dimmers which having low and wide phase transition temperature.
Keywords:liquid crystal cholesteryl dimer
 
 
 

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