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Glassy nematics

YH Geng, SW Culligan, A Trajkovska, JU Wallace, and SH Chen, Monodisperse oligofluorenes forming glassy-nematic films for polarized blue emission, Chem. Mater., 15 542-549, 2003. [Pg.480]

Y Geng, ACA Chen, JJ Ou, SH Chen, K Klubek, KM Vaeth, and CW Tang, Monodisperse glassy-nematic conjugated oligomers with chemically tunable polarized light emission, Chem. Mater., 15 4352-4360, 2003. [Pg.480]

Sorai, M. and Seki, S. Heat capacity of N-(o-hydroxy-p-methoxybenzylidene)-p-butylaniline A glassy nematic liquid crystal. Mol. Cryst. Liq. Cryst. 23, 299 (1973)... [Pg.55]

FIGURE 14. (a) Spiropyran with glassy nematic state and (b) polyene azomethine liquid crystal... [Pg.439]

Figure 6 UV-Vis spectral changes upon 313- and 366-nm irradiation of glassy nematic films of HMW1. (a) Before irradiation, (b) After irradiation. Residual absorption at ca. 280 nm is attributed to cyclobutane photoproducts. Residual absorption beyond ca. 340 nm is mostly due to photo-Fries rearrangement products. (Reprinted with permission from Creed et al. [23]. Copyright 1990 American Chemical Society.)... Figure 6 UV-Vis spectral changes upon 313- and 366-nm irradiation of glassy nematic films of HMW1. (a) Before irradiation, (b) After irradiation. Residual absorption at ca. 280 nm is attributed to cyclobutane photoproducts. Residual absorption beyond ca. 340 nm is mostly due to photo-Fries rearrangement products. (Reprinted with permission from Creed et al. [23]. Copyright 1990 American Chemical Society.)...
A dithienylethene-based liquid crystal material has been synthesized. This provides a morphologically stable, photoresponsive glassy nematic system in which the refractive index and optical birefringence can be modulated by photochemical means (Equation 7) <2004CSR85>. [Pg.749]

F.Y. Fan, S.W. Culligan, J.C. Mastrangelo, D. Katsis, S.H. Chen, T.N. Blanton, Novel glassforming liquid crystals. 6. High temperature glassy nematics. Chem. Mater. 13, 4584—4594 (2001)... [Pg.207]

S.H. Chen, H.M.P. Chen, Y. Geng, S.D. Jacobs, K.L. Marshall, T.N. Blanton, Novel glassy-nematic liquid crystals for nondestructive optical memory and photonic switching. Adv. Mater. 15, 1061-1065 (2003)... [Pg.208]

A. Trajkovska, C. Kim, K.L. Marshall, T.H. Mourey, S.H. Chen, Photoalignment of a nematic liquid crystal fluid and glassy-nematic oligofluorenes on coumarin-containing polymer films. Macromolecules 39, 6983-6989 (2006)... [Pg.208]

H.R. Kricheldorf, G. Schwarz, E. Volker, New polymer syntheses, 37. Glassy, nematic copolyesters from aryloxyterephthalic acids, hydroquinone and 4-hydroxybenzoic acid, Makromol. Chem. Rapid Commun. 10 (6) (1989)243-248. [Pg.178]

Miniewicz, A. Samoc, A. Samoc, M. Kaszynski, P. Observation of second harmonic generation in an oriented glassy nematic phase of a [BiqHio] derivative, J. Appl. Phys. 2007,102,033108. [Pg.353]

Mossbauer studies of glassy nematic [4-6], cholesteric [7, 8] and smectic [9-12] liquid crystals allow the determination of characteristic Debye temperatures, order parameters, intramolecular and lattice contributions to the nuclear vibrational anisotropy, and molecular orientation [13] in the liquid crystal states. For example, Bekeshev et al. have shown from In/ versus temperature data at very low temperatures that MBBA [A -(/7-methoxybenzylidene)-/7-bu-tylaniline] and some liquid-crystalline di-substituted derivatives of ferrocene have weak intermolecular bonds that result in the appearance of additional degrees of free-... [Pg.760]

FIGURE 1 Molar heat capacities for die nematogen OHMBBA. Open circles stable oystal, nematic and isotrqiic liquid phases. Solid circles the glassy nematic and the supercooled nematic states. From [16]. [Pg.118]

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See also in sourсe #XX -- [ Pg.146 ]



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