Synthesis and characterization of a series of optically active side-chain cholesteric liquid crystalline polymers

Jun Ge Zhi; Bao Yan Zhang; Bao Ling Zang; Zhen Dou

Synthesis and characterization of a series of optically active side-chain cholesteric liquid crystalline polymers

Jun Ge Zhi, Bao Yan Zhang^*, Bao Ling Zang, Zhen Dou

^*Corresponding author for this work

Northeastern University China

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A series of thermotropic side-chain cholesteric-liquid crystalline polymers (P₀-P₈) were synthesized by graft copolymerization of mesogenic monomer cholesteryl undecylenate (M1) and chiral monomer menthyl undecylenate (M2) upon polymethylhydrosiloxane. The chemical structure of polymers was characterized by FT-IR. DSC, TGA, POM, WAXD, SAXS were used to measure their thermal properties and mesogenic properties. The polymers show thermotropic cholesteric-liquid crystalline properties with a broad mesogenic region, and exhibit typical color Grand-jean texture and oil streaks texture of cholesteric liquid crystalline. The thermotropic mesogenic property of the polymers is weakened when the concentration of the monomer M2 is over 30%. The polymers are thermal stable at about 310°C.

Original language	English
Pages (from-to)	606-609
Number of pages	4
Journal	Dongbei Daxue Xuebao/Journal of Northeastern University
Volume	23
Issue number	6
Publication status	Published - Jun 2002
Externally published	Yes

Keywords

Chiral monomer
Cholesteric liquid crystalline
Grand-jean texture
Oil streaks texture
Polymethylhydrosiloxane

Cite this

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title = "Synthesis and characterization of a series of optically active side-chain cholesteric liquid crystalline polymers",

abstract = "A series of thermotropic side-chain cholesteric-liquid crystalline polymers (P0-P8) were synthesized by graft copolymerization of mesogenic monomer cholesteryl undecylenate (M1) and chiral monomer menthyl undecylenate (M2) upon polymethylhydrosiloxane. The chemical structure of polymers was characterized by FT-IR. DSC, TGA, POM, WAXD, SAXS were used to measure their thermal properties and mesogenic properties. The polymers show thermotropic cholesteric-liquid crystalline properties with a broad mesogenic region, and exhibit typical color Grand-jean texture and oil streaks texture of cholesteric liquid crystalline. The thermotropic mesogenic property of the polymers is weakened when the concentration of the monomer M2 is over 30%. The polymers are thermal stable at about 310°C.",

keywords = "Chiral monomer, Cholesteric liquid crystalline, Grand-jean texture, Oil streaks texture, Polymethylhydrosiloxane",

author = "Zhi, {Jun Ge} and Zhang, {Bao Yan} and Zang, {Bao Ling} and Zhen Dou",

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TY - JOUR

T1 - Synthesis and characterization of a series of optically active side-chain cholesteric liquid crystalline polymers

AU - Zhi, Jun Ge

AU - Zhang, Bao Yan

AU - Zang, Bao Ling

AU - Dou, Zhen

PY - 2002/6

Y1 - 2002/6

N2 - A series of thermotropic side-chain cholesteric-liquid crystalline polymers (P0-P8) were synthesized by graft copolymerization of mesogenic monomer cholesteryl undecylenate (M1) and chiral monomer menthyl undecylenate (M2) upon polymethylhydrosiloxane. The chemical structure of polymers was characterized by FT-IR. DSC, TGA, POM, WAXD, SAXS were used to measure their thermal properties and mesogenic properties. The polymers show thermotropic cholesteric-liquid crystalline properties with a broad mesogenic region, and exhibit typical color Grand-jean texture and oil streaks texture of cholesteric liquid crystalline. The thermotropic mesogenic property of the polymers is weakened when the concentration of the monomer M2 is over 30%. The polymers are thermal stable at about 310°C.

AB - A series of thermotropic side-chain cholesteric-liquid crystalline polymers (P0-P8) were synthesized by graft copolymerization of mesogenic monomer cholesteryl undecylenate (M1) and chiral monomer menthyl undecylenate (M2) upon polymethylhydrosiloxane. The chemical structure of polymers was characterized by FT-IR. DSC, TGA, POM, WAXD, SAXS were used to measure their thermal properties and mesogenic properties. The polymers show thermotropic cholesteric-liquid crystalline properties with a broad mesogenic region, and exhibit typical color Grand-jean texture and oil streaks texture of cholesteric liquid crystalline. The thermotropic mesogenic property of the polymers is weakened when the concentration of the monomer M2 is over 30%. The polymers are thermal stable at about 310°C.

KW - Chiral monomer

KW - Cholesteric liquid crystalline

KW - Grand-jean texture

KW - Oil streaks texture

KW - Polymethylhydrosiloxane

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M3 - Article

AN - SCOPUS:0036620092

SN - 1005-3026

VL - 23

SP - 606

EP - 609

JO - Dongbei Daxue Xuebao/Journal of Northeastern University

JF - Dongbei Daxue Xuebao/Journal of Northeastern University

IS - 6

ER -

Synthesis and characterization of a series of optically active side-chain cholesteric liquid crystalline polymers

Abstract

Keywords

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