Mesomorphic, dielectric, and optical properties of fluorosubstituted biphenyls, terphenyls, and quaterphenyls

• Autorzy: Kula P. , Spadło A. , Dziaduszek J. , Filipowicz J. , Dąbrowski R. , Czub J. , Urban S.
• Konferencja: Conference on Liquid Crystals : Chemistry, Physics and Applications ; (17 ; 09.2007 ; Augustów, Poland)
• Języki publikacji: EN

Abstrakty

EN

Compounds with moderate and large negative dielectric anisotropy (Δ ε ) are very attractive liquid crystal (LC) for vertical alignment mode (VA). Materials with such properties can be achieved by lateral substitution of a polar group into a mesogenic molecule. We synthesized some new LC materials with a negative value of Δ ε, a moderately high birefringence (Δ n), and a low viscosity. The mesomorphic and physical behaviour of the novel biphenyls, terphenyls and quaterphenyls fluorosubstituted in the rigid core and also with fluorinated alkyl and alkoxy chains are investigated. The prepared series of four LC compounds are promising for new LC mixtures for various applications. Examples of nematic mixtures with Δ ε ∼ -3.25 will be presented.

Słowa kluczowe

EN

liquid crystals; negative dielectric anisotropy; optical anisotropy

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2008
• Tom: Vol. 16, No. 4
• Strony: 379--385
• Opis fizyczny: Bibliogr. 10 poz., wykr.

Twórcy

autor

Kula P.

autor

Spadło A.

autor

Dziaduszek J.

autor

Filipowicz J.

autor

Dąbrowski R.

autor

Czub J.

autor

Urban S.

• Institute of Chemistry, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland,

Bibliografia

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