Synthesis and SmC* properties of chiral liquid crystalline terephthalates
作者:
K. FODOR-CSORBA,
E. SZABO,
A. VAJDA,
A. JAKLI,
L. BATA,
期刊:
Liquid Crystals
(Taylor Available online 1998)
卷期:
Volume 24,
issue 6
页码: 861-869
ISSN:0267-8292
年代: 1998
DOI:10.1080/026782998206687
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Chiral ester derivatives of terephthalic acid containing one, three, or five phenyl rings were prepared by using (S)-2-methylbutanol or (R)-2-chloropropanol as starting materials. The one-ring terephthalates did not exhibit any liquid crystalline phases, but one of them was used as a chiral dopant in ferroelectric mixtures. Elongation of the aromatic core structure to three and five phenyl rings stabilized the SmA phase, whereas a (monotropic) SmC* phase was detected in some three-ring and five-ring derivatives. In ferroelectric mixtures based on the terephthalates, spontaneous polarizations up to 340 nC cm2 were measured.
点击下载:
PDF (252KB)
返 回