Orthoconic antiferroelectric liquid crystals containing biphenyl, terphenyl, or naphthyl mesogenic unit

• Autorzy: Dąbrowski R. , Drzewiński W. , Dziaduszek J. , Gąsowska J. , Henderson P. A. , Kula P. , Otón J. M. , Bennis N.
• Konferencja: International Workshop on Liquid Crystals for Photonics ; (26-28.04.2006 ; Gent, Belgium)
• Języki publikacji: EN

Abstrakty

EN

Three homologous series of orthoconic (45 degree tilt) antiferroelectric liquid crystals containing either naphthyl or terphenyl groups as mesogenic unit have been synthesized and their mesomorphic behaviour investigated by DSC and polarized light microscopy, and their properties discussed. X-ray difraction studies have shown the presence of a de Vries-type smectic A phase which does not exhibit a layer shrinkage on transition to the ferroelectric smectic C phase. Mixtures of the new materials have been formulated and their electro-optical properties investigated for their use in surface stabilized orthoconic antiferroelectric liquid crystal (SSOAFLC) devices.

Słowa kluczowe

EN

orthoconic; antiferroelectric; liquid crystal; de Vries SmA

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2007
• Tom: Vol. 15, No. 1
• Strony: 32--36
• Opis fizyczny: Bibliogr. 8 poz., wykr.

Twórcy

autor

Dąbrowski R.

autor

Drzewiński W.

autor

Dziaduszek J.

autor

Gąsowska J.

autor

Henderson P. A.

autor

Kula P.

autor

Otón J. M.

autor

Bennis N.

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

Bibliografia

• 1. W. Drzewiński, R. Dąbrowski and K. Czupryński, "Orthoconic antiferroelectrics. Synthesis and mesomorphic properties of optically active (S)-(+)-4-(l-methylheptyloxycarbonyl)phenyl-4' -(fluoroalkanoyloxyalkoxy)biphenyl-4-carbox ylates and 4'-(alkanoyloxyalkoxy)biphenyl-4-carboxylates", Polish J. Chem. 76, 272-284 (2002).
• 2. R. Dąbrowski, J. Gąsowska, J. Otón, W. Piecek, J. Przedmojski, and M. Tykarska, "High tilted antiferroelectric liquid crystalline material", Displays 25, 9-19 (2004).
• 3. K. D'have, P. Rudquist, M. Matuszczyk, S.T. Lagerwall, H. Pauwels, and R. Dąbrowski, "Antiferroelectric liquid crystals with 45? tilt: new electro-optic effects in liquid crystals", Proc. SPIE 3955, 33-44 (2000).
• 4. K. D'have, A. Dahlgren, P. Rudquist, J.P.F. Lagerwall, G. Anderson, M. Matuszczyk, S.T. Lagerwall, R. Dąbrowski, and W. Drzewiński, "Antiferroelectric liquid crystals with 45° tilt; a new class of promising electro-optic materials", Ferroelectrics 244, 115-128 (2000).
• 5. S. Lagerwall, A. Dahlgren, P. Jägemal, P. Rudquist, K. D'have, H. Pauwels, R. Dąbrowski, and W. Drzewiński,"Unique electro-optical properties of liquid crystals designed for molecular optics", Adv. Fund. Mater. 11, 87-94(2001).
• 6. P.A. Henderson, W. Drzewiński, and R. Dąbrowski, "Antiferroelectric liquid crystals containing a naphthoate mesogenic unit", Ferroelectrics, (2006) in press.
• 7. P. Kula, R. Dąbrowski, K. Kenig, and D. Chyczewska, "New antiferroelectric compounds from chiral terphenyls", Fetroelectrics, (2006) in press.
• 8. J.M. Otón, J.M.S. Pena, X. Quintana, J.L. Gayo, and V. Urruchi, "Asymmetric switching of antiferroelectric liquid-crystal cells", Appl. Phys. Lett. 78, 2422 (2001).