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2006•Molecular Crystals and Liquid CrystalsRequires access

DSC Study on Thermotropic Liquid Crystalline Compounds with Alkyl Substituents

Yiquan Zheng, Shaoping Ren, Youdao Ling, Mangeng Lu

Open publisher page 14 citations

Abstract

A series of new liquid crystalline epoxy compounds with alkyl substituents from 1 to 15 carbon atoms were characterized by differential scanning calorimetry (DSC). The result showed the length of lateral alkyl substituents of liquid crystalline compounds was the dominant reason for the change of phase behavior. The result implied that TN-I exhibited the odd–even effect when the length of lateral alkyl chains from 5 to 8 was approximately half of the fully extended length of mesogenic core with end polar epoxy groups.

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What this paper is about

A series of new liquid crystalline epoxy compounds with alkyl substituents from 1 to 15 carbon atoms were characterized by differential scanning calorimetry (DSC). The result showed the length of lateral alkyl substituents of liquid crystalline compounds was the dominant reason for the change of phase behavior. The result implied that TN-I exhibited the odd–even effect when the length of lateral alkyl chains from 5 to 8 was approximately half of the fully extended length of mesogenic core with end polar epoxy groups.

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Available abstract

A series of new liquid crystalline epoxy compounds with alkyl substituents from 1 to 15 carbon atoms were characterized by differential scanning calorimetry (DSC). The result showed the length of lateral alkyl substituents of liquid crystalline compounds was the dominant reason for the change of phase behavior. The result implied that TN-I exhibited the odd–even effect when the length of lateral alkyl chains from 5 to 8 was approximately half of the fully extended length of mesogenic core with end polar epoxy groups.

Key concepts: Thermotropic crystal, Alkyl, Differential scanning calorimetry, Mesogen, Liquid crystal, Chemistry, Crystallography, Polar

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