A phase polymorphism NSAdI in liquid-crystalline polymethacrylates with 4′-trifluoromethoxyazobenzene mesogenic side groups

✍ Scribed by Ralf Ruhmann; Thomas Thiele; Dietrich Prescher; Dietmar Wolff

• Book ID: 102942096
• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 643 KB
• Volume: 16
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.1995.030160302

✦ Synopsis

Abstract

The mesophase behaviour of liquid‐crystalline polymethacrylates with 4′‐trifluoromethoxyazobenzene mesogens and alkylene spacers \documentclass{article}\pagestyle{empty}\begin{document}$ \left( {\rlap{--} ({\rm CH}_{\rm 2} \rlap{--} )_n ,n = 2 - 6} \right) $\end{document} in the side chains was investigated and compared with that of the corresponding non‐fluorinated polymers. The fluorinated polymers with spacer lengths n = 5 and 6 are the first side‐group liquid‐crystalline polymethacrylates showing a nematic phase below a smectic A phase.