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Original Articles

Reorientation instabilities and viscoelastic measurements in a main chain thermotropic nematic polymer Optical and NMR studies

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Pages 607-628 | Received 06 Oct 1989, Accepted 24 Nov 1989, Published online: 24 Sep 2006

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Read on this site (14)

GeoffreyR. Luckhurst, Akihiko Sugimura & BakirA. Timimi. (2005) Electric field‐driven director oscillations in nematic liquid crystals. Liquid Crystals 32:11-12, pages 1449-1463.
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G. R. Luckhurst, A. Sugimura, B. A. Timimi & H. Zimmermann. (2005) NMR determination of the physical properties of nematics. Liquid Crystals 32:11-12, pages 1389-1396.
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Sebastien Viale, Eduardo Mendes & StephenJ. Picken. (2005) A Direct Observation by XRD of Reorientation in a Supramolecular Liquid Crystal Polymer Induced by Magnetic Field. Molecular Crystals and Liquid Crystals 437:1, pages 43/[1287]-52/[1296].
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Michael Bender, Peter Holstein & Dieter Geschke. (2001) Homogeneous and Inhomogeneous Director Dynamics of a Fluorinated Liquid Crystal. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 363:1, pages 85-95.
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Geoffrey Roger Luckhurst. (2000) Field-Induced Alignment of the Directors in the Smectic A Phase. Experiment and Simulation. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 347:1, pages 121-135.
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TimothyJ. Bunning, Wade Adams, ChristopherK. Ober & Hilmar Korner. (2000) Synchrotron Radiation for Probing the Electric Field Alignment of LC Macromolecules and Polymers. International Journal of Polymeric Materials and Polymeric Biomaterials 45:3-4, pages 451-501.
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Alain Veron, AlexandreE. Gomes, CatarinaR. Leal, Jacques Van Der Klink & AssisF. Martins. (1999) NMR Study of Flow and Viscoelastic Properties of PBLG/m-Cresol Lyotropic Liquid Crystal. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 331:1, pages 499-507.
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J. P. CASQUILHO. (1999) Linear analysis of pattern formation in nematics in oblique magnetic fields. Liquid Crystals 26:4, pages 517-524.
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J.P. Casquilho, L.N. Gon[ctilde]alves & A.F. Martins. (1996) On the influence of the Frank elasticity on the magnetic reorientation of nematic polymers. Liquid Crystals 21:5, pages 651-661.
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L.N. Gonçalves, J.P. Casquilho, J. Figueirinhas, C. Cruz & A.F. Martins. (1993) NMR study of the long time, defect-controlled, magnetic reorientation of a nematic polymer liquid crystal. Liquid Crystals 14:5, pages 1485-1493.
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J.B. Ferreira, H. Gerard, D. Galland & F. Volino. (1993) Theory of NMR line broadening by elastic modes in nematic liquid crystals. Liquid Crystals 13:5, pages 645-665.
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Norbert Schwenk, Christine Boeffel & Hans Wolfgang Spiess. (1992) Convective director structures upon continuous rotation of nematic side group polymers. Liquid Crystals 12:5, pages 735-750.
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H. Roth. (1992) Reorientation of a liquid-crystalline side chain polymer. Liquid Crystals 11:1, pages 31-40.
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Articles from other publishers (39)

Akihiko Sugimura & Geoffrey R. Luckhurst. (2016) Deuterium NMR investigations of field-induced director alignment in nematic liquid crystals. Progress in Nuclear Magnetic Resonance Spectroscopy 94-95, pages 37-74.
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Herbert Kneppe & Frank Schneider. 2014. Handbook of Liquid Crystals. Handbook of Liquid Crystals 1 37 .
Claudia Schmidt & Hans Wolfgang Spiess. 2014. Handbook of Liquid Crystals. Handbook of Liquid Crystals 1 32 .
Valentina Domenici, Mario Cifelli, Carlo Alberto Veracini, Natalia I. Boiko, Elena V. Agina & Valery P. Shibaev. (2008) Order and Dynamics of a Liquid Crystalline Dendrimer by Means of 2 H NMR Spectroscopy . The Journal of Physical Chemistry B 112:47, pages 14718-14728.
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J P Casquilho, A Véron & A F Martins. (2006) NMR spectra simulation of the magnetic reorientation of a lyotropic nematic polymer cell in the Freedericksz and a non-Freedericksz twist geometry. Modelling and Simulation in Materials Science and Engineering 14:2, pages 299-312.
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Laura PastorJoaquín BarberáMark McKennaMercedes MarcosRafael Martín-RapúnJosé Luis SerranoGeoffrey R. LuckhurstAzizah Mainal. (2004) End-on and Side-on Nematic Liquid Crystal Dendrimers. Macromolecules 37:25, pages 9386-9394.
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W. Bras, J. W. Emsley, Y. K. Levine, G. R. Luckhurst, J. M. Seddon & B. A. Timimi. (2004) Field-induced alignment of a smectic- A phase: A time-resolved x-ray diffraction investigation . The Journal of Chemical Physics 121:9, pages 4397-4413.
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G. R. Luckhurst, T. Miyamoto, A. Sugimura, B. A. Timimi & H. Zimmermann. (2004) Electric-field driven director oscillations in a nematic liquid crystal: A NMR investigation. The Journal of Chemical Physics 121:4, pages 1928-1937.
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Diego Frezzato, Giorgio J. Moro, Markus Tittelbach & Gerd Kothe. (2003) Transverse nuclear spin relaxation induced by director fluctuations in a nematic liquid crystal polymer. Evaluation of the anisotropic elastic constants. The Journal of Chemical Physics 119:7, pages 4060-4069.
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R. H. Acosta & D. J. Pusiol. (2003) Reorientation dynamics in a nematic liquid crystal studied by fast field cycling nuclear magnetic resonance. The Journal of Chemical Physics 119:6, pages 3461-3467.
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Akihiko Sugimura & Geoffrey R. Luckhurst. 2003. Nanotechnology and Nano-Interface Controlled Electronic Devices. Nanotechnology and Nano-Interface Controlled Electronic Devices 313 349 .
G. R. Luckhurst, T. Miyamoto, A. Sugimura & B. A. Timimi. (2002) Director reorientation processes in a monodomain thin nematic liquid crystal film: A deuterium NMR spectroscopy study. The Journal of Chemical Physics 117:12, pages 5899-5907.
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Michail Lukaschek, Gerd Kothe, Claudia Schmidt, Alexandre E. Gomes & Antonino Polimeno. (2002) Evaluation of the viscoelastic properties of a nematic dimer by cone-and-plate rheo-nuclear magnetic resonance spectroscopy and comparison with Leslie–Ericksen theory. The Journal of Chemical Physics 117:9, pages 4550-4556.
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G. R. Luckhurst, T. Miyamoto, A. Sugimura & B. A. Timimi. (2002) Field-induced director dynamics in a nematic liquid crystal: A molecular site dependence?. The Journal of Chemical Physics 116:12, pages 5099.
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Geoffrey R. Luckhurst, Tetsuo Miyamoto, Akihiko Sugimura & Bakir A. Timimi. (2001) Deuterium NMR investigation of field-induced director dynamics: the role of backflow. Thin Solid Films 393:1-2, pages 399-406.
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Assis F. Martins, Alexandre E. Gomes, Antonino Polimeno & Laura Orian. (2000) Simulations of flow-induced director structures in nematic liquid crystals through Leslie-Ericksen equations. II. Interpretation of NMR experiments in liquid crystal polymers. Physical Review E 62:2, pages 2301-2309.
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Antonino Polimeno, Laura Orian, Assis F. Martins & Alexandre E. Gomes. (2000) Simulations of flow-induced director structures in nematic liquid crystals through Leslie-Ericksen equations. I. Computational methodology in two dimensions. Physical Review E 62:2, pages 2288-2300.
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J.W Emsley, G.R Luckhurst & P Pedrielli. (2000) Magnetic field induced alignment of the director in a smectic A phase: surface effects. Chemical Physics Letters 320:3-4, pages 255-261.
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J. W. Emsley, J. E. Long, G. R. Luckhurst & P. Pedrielli. (1999) Magnetic field induced alignment of the directors of a smectic- A liquid crystal . Physical Review E 60:2, pages 1831-1839.
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O. Pelletier, P. Sotta & P. Davidson. (1999) Deuterium Nuclear Magnetic Resonance Study of the Nematic Phase of Vanadium Pentoxide Aqueous Suspensions. The Journal of Physical Chemistry B 103:26, pages 5427-5433.
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Claudia Schmidt & Hans Wolfgang Spiess. 1998. Handbook of Liquid Crystals. Handbook of Liquid Crystals 614 618 .
D. Demus, J. Goodby, G. W. Gray, H.‐W. Spiess & V. VillClaudine Noël. 1998. Handbook of Liquid Crystals. Handbook of Liquid Crystals 93 120 .
D. Demus, J. Goodby, G. W. Gray, H.‐W. Spiess & V. VillHerbert Kneppe & Frank Schneider. 1998. Handbook of Liquid Crystals. Handbook of Liquid Crystals 142 169 .
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D. Demus, J. Goodby, G. W. Gray, H.‐W. Spiess & V. VillClaudine Noël. 1998. Handbook of Liquid Crystals Set. Handbook of Liquid Crystals Set 93 120 .
P. Holstein, J. Rauchfuß, M. Winkler, G. Klotzsche & D. Geschke. (1998) Study of fast switching processes due to electric and magnetic fields—an NMR approach. Solid State Nuclear Magnetic Resonance 10:4, pages 225-233.
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Maren Grigutsch & Ralf Stannarius. (1997) Comment on “Periodic distortions in lyotropic nematic calamitic liquid crystals”. Physical Review E 56:6, pages 7323-7325.
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C. Noël. (2003) Defects and textures in nematic MCLCPs. Acta Polymerica 48:9, pages 335-353.
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Akihiko Sugimura & Geoffrey Luckhurst. 2007. eMagRes. eMagRes 307 314 .
Alex M. Jamieson, Dongfeng Gu, F.L. Chen & S. Smith. (1996) Viscoelastic behavior of nematic monodomains containing liquid crystal polymers. Progress in Polymer Science 21:5, pages 981-1033.
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Nicholas Heaton, Dirk Reimer & Gerd Kothe. (2011) Viscoelastic properties of liquid crystal polymers: Collective motions and nuclear spin relaxation. Macromolecular Symposia 98:1, pages 365-386.
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S. M. Fan, G. R. Luckhurst & S. J. Picken. (1994) A deuterium nuclear magnetic resonance investigation of orientational order and director kinetics in aramid solutions. The Journal of Chemical Physics 101:4, pages 3255-3267.
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Graham Williams. (1994) Dielectric relaxation spectroscopy of polymers revealing dynamics in isotropic and anisotropic stationary systems and changes in molecular mobility in non-stationary systems. Polymer 35:9, pages 1915-1922.
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Sandra Ristori, Gérard Gebel & Giacomo Martini. (1993) Magnetic resonance study on lamellar phases of ammonium perfluorooctanoate. Colloids and Surfaces A: Physicochemical and Engineering Aspects 80:2-3, pages 113-120.
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N. Heaton, D. Reimer & G. Kothe. (2010) Collective Motions and Viscoelastic Properties in Main Chain Liquid Crystal Polymers. A Deuteron Spin Relaxation Study. Berichte der Bunsengesellschaft für physikalische Chemie 97:10, pages 1320-1325.
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Norbert Schwenk & Hans Wolfgang Spiess. (1993) Pattern formation in the splay Freedericks transition of a nematic side-group polysiloxane. Journal de Physique II 3:6, pages 865-889.
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U. Zeuner, T. Dippel, F. Noack, K. Müller, C. Mayer, N. Heaton & G. Kothe. (1992) Proton spin-lattice relaxation dispersion of liquid crystal polymers: Characterization of local and collective motions. The Journal of Chemical Physics 97:5, pages 3794-3802.
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Ali Nazemi, Graham Williams, George S. Attard & Frank E. Karasz. (2003) The alignment of LC side‐chain polymers in directing electric fields: theory and practice. Polymers for Advanced Technologies 3:4, pages 157-168.
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