4.1 Article Proceedings Paper

High birefringence phenylacetylene liquid crystals with low viscosity

Journal

MOLECULAR CRYSTALS AND LIQUID CRYSTALS
Volume 364, Issue -, Pages 711-718

Publisher

GORDON BREACH PUBLISHING, TAYLOR & FRANCIS GROUP
DOI: 10.1080/10587250108025039

Keywords

optical anisotropy; anisotropy of polarizability; high birefringence; low viscosity; phenylacetylene

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We have synthesized new high Delta n 3-ring phenylacetylene(3PA) liquid crystals which have substituent groups with core center phenyl ring and investigated the effects of substitution on physical properties. Nematic range and viscosity were improved remarkably with keeping high Delta n by introducing trifluoromrthoxy group. The Delta n of 3PAs were also descussed with relationship of polarizability and order parameter.

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