Synthesis and Physical Properties of Novel Terphenyl Type Ferroelectric Liquid Crystals
摘要:
A new series of optically active compounds have been prepared using 4.4 ''-terphenyldicarboxylic acid and S-2-alcoxypropanols-1. These ace Sm*C, SmA and N* chemically stable - especially with regard to racemization and UV-light compounds with a snail P-S value, high twisting power and left handedness of helix.
Frackowiak, Esther; Scherowsky, Guenter, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1997, vol. 52, # 12, p. 1539 - 1543
作者:Frackowiak, Esther、Scherowsky, Guenter
DOI:——
日期:——
Ferroelectric Liquid Crystals Containing the Cyano Group
作者:M. Kašpar、H. Sverenyák、V. Hamplová、S. A. Pakhomov、M. Glogarová
DOI:10.1080/10587259508038695
日期:1995.2
A new series of ferroelectric liquid crystals having the cyano group in the mesogenic core and with the terminal group based on O-substitued S-(-)-lactic acid has been synthetized and characterized. The compounds exhibit a broad ferroelectric chiral smectic C mesophase with a high spontaneous polarization.
Vajda; Kaspar; Hamplova, Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, 2001, vol. 351, p. 279 - 286