Cholesteric pitch of lyotropic polymer liquid crystals

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

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)1398-1405
Number of pages8
Issue number4
StatePublished - Feb 24 1998

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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