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A polycatenar mesogen with a perfluorinated moiety showing continuous phase transformation between a smectic A phase
Etsushi Nishikawa1, Jun Yamamoto, Hiroshi Yokoyama
1Yokoyama Nano-structured Liquid Crystal Project, ERATO, TRC, Japan Science and Technology Corporation, 5-9-9 Tokodai, Tsukuba, Ibaraki 300-2635, Japan. e2nishik@nanolc.jst.go.jp
Chemical Communications (Cambridge, England)
|March 5, 2003
Abstract:
A polycatenar mesogen consisting of a four aromatic ring system with three long alkoxy chains and a bulky perfluorinated substituent has been synthesized and found to show the polymorphism of a cubic phase, a columnar phase and a smectic A phase, including a structured, fluid, optically isotropic phase with the phase transformation between the smectic A phase and the isotropic phase occurring continuously.