Cholesteric pitch of lyotropic polymer liquid crystals

Takahiro Sato; Jun Nakamura; Akio Teramoto; Mark M. Green

doi:10.1021/ma970968o

Cholesteric pitch of lyotropic polymer liquid crystals

Takahiro Sato, Jun Nakamura, Akio Teramoto, Mark M. Green

Chemical and Biomolecular Engineering

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

Abstract

The cholesteric pitch P of semiflexible helical polymer solutions was formulated using a threaded equivalent freely jointed chain model. The theory was favorably compared with experimental results of P for cholesteric solutions of the three helical polymers schizophyllan (a triple-helical polysaccharide), poly(γ-benzyl L-glutamate), and poly((A)-2,6-dimethylheptyl isocyanate), and two chiral interaction parameters characterizing the chiral hard-core repulsion and the soft dispersion force were determined from this comparison. However, the same theory failed to describe the polymer concentration dependence of P for cholesteric solutions of (acetoxypropyl)cellulose in a very concentrated region.

Original language	English (US)
Pages (from-to)	1398-1405
Number of pages	8
Journal	Macromolecules
Volume	31
Issue number	4
DOIs	https://doi.org/10.1021/ma970968o
State	Published - Feb 24 1998

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "The cholesteric pitch P of semiflexible helical polymer solutions was formulated using a threaded equivalent freely jointed chain model. The theory was favorably compared with experimental results of P for cholesteric solutions of the three helical polymers schizophyllan (a triple-helical polysaccharide), poly(γ-benzyl L-glutamate), and poly((A)-2,6-dimethylheptyl isocyanate), and two chiral interaction parameters characterizing the chiral hard-core repulsion and the soft dispersion force were determined from this comparison. However, the same theory failed to describe the polymer concentration dependence of P for cholesteric solutions of (acetoxypropyl)cellulose in a very concentrated region.",

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AU - Teramoto, Akio

AU - Green, Mark M.

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Y1 - 1998/2/24

N2 - The cholesteric pitch P of semiflexible helical polymer solutions was formulated using a threaded equivalent freely jointed chain model. The theory was favorably compared with experimental results of P for cholesteric solutions of the three helical polymers schizophyllan (a triple-helical polysaccharide), poly(γ-benzyl L-glutamate), and poly((A)-2,6-dimethylheptyl isocyanate), and two chiral interaction parameters characterizing the chiral hard-core repulsion and the soft dispersion force were determined from this comparison. However, the same theory failed to describe the polymer concentration dependence of P for cholesteric solutions of (acetoxypropyl)cellulose in a very concentrated region.

AB - The cholesteric pitch P of semiflexible helical polymer solutions was formulated using a threaded equivalent freely jointed chain model. The theory was favorably compared with experimental results of P for cholesteric solutions of the three helical polymers schizophyllan (a triple-helical polysaccharide), poly(γ-benzyl L-glutamate), and poly((A)-2,6-dimethylheptyl isocyanate), and two chiral interaction parameters characterizing the chiral hard-core repulsion and the soft dispersion force were determined from this comparison. However, the same theory failed to describe the polymer concentration dependence of P for cholesteric solutions of (acetoxypropyl)cellulose in a very concentrated region.

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Cholesteric pitch of lyotropic polymer liquid crystals

Abstract

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