Deuterium NMR investigations of field-induced director alignment in nematic liquid crystals

• Project/Area Number: 24360127
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Electronic materials/Electric materials
• Research Institution: Osaka Sangyo University
• Principal Investigator: Sugimura Akihiko 大阪産業大学, デザイン工学部, 教授 (90145813)
• Co-Investigator(Kenkyū-buntansha): Usami Kiyoaki 大阪産業大学, デザイン工学部, 准教授 (40360507)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000); Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2012: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
• Keywords: 液晶 / 液晶ダイレクタ / 重水素化核磁気共鳴分光法 / 弾性理論 / 液晶ダイレクタ制御 / 光電効果 / ダイレクタ制御 / 核磁気共鳴分光 / 連続体理論

Outline of Final Research Achievements

The basic features of the important hydrodynamic processes for low molar mass nematics have been characterized for the systems in their equilibrium and non-equilibrium states. These have been created using electric and magnetic fields to align the director and deuterium nuclear magnetic resonance spectroscopy (DNMR) has been used to explore this alignment. Theoretical models based on continuum theory have been developed to complement the experiments and found to describe successfully the static and the dynamic phenomena observed. Such macroscopic behaviour has been investigated with DNMR spectroscopy, in which an electric field in addition to the magnetic field of the spectrometer is used to rotate the director and produce a non-equilibrium state. This powerful technique has proved to be especially valuable for the investigation of nematic liquid crystals. Time-resolved DNMR spectroscopy can be employed to investigate the dynamic director alignment process.

Research Products

• [Int'l Joint Research] Southampton University(United Kingdom)
• [Int'l Joint Research] Max-Planck-Institut(Germany)
• [Int'l Joint Research] University of Malaya(Malaysia)
• [Journal Article] Deuterium NMR investigations of field-induced director alignment in nematic liquid crystals (2016)
  • Author(s): A. Sugimura and G. R. Luckhurst
  • Journal Title: Progress in Nuclear Magnetic Resonance Spectroscopy Volume: 94/95 Pages: 37-74
  • DOI: 10.1016/j.pnmrs.2016.01.002
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Macroscopic order in a nematic liquid crystal: Perturbation by spontaneous director fluctuations (2015)
  • Author(s): Daichi Hamasuna, Rauzah Hashim, Atsuhiro Kasatani, Geoffrey R. Luckhurst, Akihiko Sugimura, Bakir A. Timimi, Herbert Zimmermann
  • Journal Title: Physical Review E Volume: 91 Issue: 6
  • DOI: 10.1103/physreve.91.062502
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Amphiphilic designer nano-carriers for controlled release: from drug delivery to diagnostics (2014)
  • Author(s): M. Salim, H. Minamikawa, A. Sugimura, R. Hashim
  • Journal Title: Medical Chemistry Communication Volume: 5 Issue: 11 Pages: 1602-1618
  • DOI: 10.1039/c4md00085d
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Deuterium NMR Investigation of the Lyotropic Phases of Alkyl b-Glycoside/D2O Systems (2013)
  • Author(s): O. Misran, B. Timimi, T. Heidelberg, A. Sugimura, R. Hashim
  • Journal Title: Journal of Physical Chemistry B Volume: 117 Issue: 24 Pages: 7335-7344
  • DOI: 10.1021/jp401787b
  • Peer Reviewed
• [Journal Article] Liquid Crystalline Samples: Static and Dynamic Measurements of Director Alignment (2013)
  • Author(s): A. Sugimura, G. Luckhurst
  • Journal Title: Encyclopedia of Magnetic Resonance Volume: 2 Pages: 307-314
  • DOI: 10.1002/9780470034590.emrstm1321
  • ISBN: 9780470034590, 9780470058213
  • Peer Reviewed
• [Journal Article] Field-induced non-uniform director reorientation for a low molar mass nematic imposed by a strong orthogonal electric field (2013)
  • Author(s): A. Sugimura, A. A. Vakulenko, A. V. Zakharov
  • Journal Title: Thin Solid Films Volume: 554 Pages: 64-68
  • DOI: 10.1016/j.tsf.2013.04.095
  • Peer Reviewed
• [Journal Article] Properties of the static NMR response of a confined thin nematic film of 5CB-d2 under crossed electric and magnetic fields : Theory and experiments (2012)
  • Author(s): A. V'eron, A. Sugimura, G.R. Luckhurst, and A. F. Martins
  • Journal Title: Physical Review E Volume: 86 Issue: 5
  • DOI: 10.1103/physreve.86.051708
  • Peer Reviewed
• [Journal Article] Nature-like synthetic alkyl branched-chain glycolipids : a review on chemical structure and self-assembly properties (2012)
  • Author(s): R. Hashim, A. Sugimura, H. Minamikawa and T. Heidelberg
  • Journal Title: Liquid Crystals Volume: 39 Issue: 1 Pages: 1-17
  • DOI: 10.1080/02678292.2011.614017
  • Peer Reviewed
• [Presentation] 糖脂質系グルコシド液晶の磁場・電場誘起相転移現象 (2015)
  • Author(s): 浜砂大地, 杉村明彦, H.S.Nguan, M.Rahman, R.Hashim, H.Zimmermann
  • Organizer: 第62回 応用物理学会春季学術講演会
  • Place of Presentation: 東海大学
  • Year and Date: 2015-03-12
• [Presentation] Observation of Field-induced Transition into the Isotropic Phase of Thermotropic Anhydrous Octyl-D-β-Glycolipid (2014)
  • Author(s): H.S.Nguan, R. Hashim, A. Sugimura
  • Organizer: 11th International Conference on Nano-Molecular Electronics
  • Place of Presentation: 神戸国際会議場
  • Year and Date: 2014-12-17
• [Presentation] Macroscopic Order in a Nematic Liquid Crystal: Perturbation by Spontaneous Director Fluctuations (2014)
  • Author(s): R.Hashim, A.Kasatani, G.R.Luckhurst, A.Sugimura, B.A.Timimi, H.Zimmermann
  • Organizer: 7th Italian-Japanese Workshop on Liquid Crystals
  • Place of Presentation: Ravenna, Italy
  • Year and Date: 2014-07-07
• [Presentation] Effect of sugar stereochemistry on glycolipid self-assembly (2012)
  • Author(s): R. Hashim, A. Sugimura
  • Organizer: 10th Int. Conf. on Nano-Molecular Electronics
  • Place of Presentation: Awaji Yumebutai Int. Conf. C.
  • Year and Date: 2012-12-13
• [Presentation] Field-induced non-uniform director distribution due to the periodic deformation for alow molar mass nematic (2012)
  • Author(s): A.V. Zakharov, A.A. Vakulenko, A. Sugimura
  • Organizer: 10th Int. Conf. on Nano-Molecular Electronics
  • Place of Presentation: Awaji Yumebutai Int. Conf. C.(招待講演)
  • Year and Date: 2012-12-12
• [Presentation] Creation and Annihilation of the Nematic Director Distribution during the Dynamic Process (2012)
  • Author(s): A. Sugimura and H. Zimmermann
  • Organizer: 10th Int. Conf. on Nano-Molecular Electronics
  • Place of Presentation: Awaji Yumebutai Int. Conf. C.
  • Year and Date: 2012-12-12
• [Presentation] Orientational Transition of the Nematic Director (2012)
  • Author(s): A.Sugimura and A. V. Zakharov
  • Organizer: 12th International Discussion & Conference on Nano Interface Controlled Electronic Devices
  • Place of Presentation: Gyeongju, Korea(招待講演)
  • Year and Date: 2012-10-25
• [Presentation] Anomalous nematic director relaxation induced by periodic deformations under the two orthogonal fields 、 (2012)
  • Author(s): A.Sugimura and A. V. Zakharov
  • Organizer: IUMRS-Int. Conference on Electronic Materials
  • Place of Presentation: Pacifico Yokohama
  • Year and Date: 2012-09-24
• [Presentation] Transient Director Distribution for a low Molar Mass Nematic Liquid Crystal studied by Time-resolved Deuterium NMR Spectroscopy , (2012)
  • Author(s): M. Kasatani, M. Nishimura, A. Sugimura, G R. Luckhurst, B. A. Timimi, H. Zimmermann
  • Organizer: 24th International Liquid Crystal Conference
  • Place of Presentation: Mainz, Germany
  • Year and Date: 2012-08-20
• [Presentation] Anomalous Fast Director Rotation of a Low Molar Mass Nematic Liquid Crystal (2012)
  • Author(s): K. Aiyama, T. Matsuda, S. Torii and A. Sugimura
  • Organizer: 24th International Liquid Crystal Conference
  • Place of Presentation: Mainz, Germany
  • Year and Date: 2012-08-20
• [Presentation] Field-induced Director Dynamics of a Nematic Liquid Crystal
  • Author(s): A. Sugimura
  • Organizer: 第74回 応用物理学会秋季学術講演会
  • Place of Presentation: 同志社大学
• [Presentation] Nematic Director Fluctuation during the Field-Induced Relaxation Process
  • Author(s): A. Kasatani, T. Matsuda, A. Sugimura
  • Organizer: 2013年 日本液晶学会討論会
  • Place of Presentation: 大阪大学
• [Presentation] Rotational Diffusion of the Nematic Director during the Field-Induced Relaxation Process
  • Author(s): A. Sugimura, R. Hashim, G. R. Luckhurst.
  • Organizer: 12th European Conference on Liquid Crystals
  • Place of Presentation: Rhodes, Greece
• [Presentation] Perturbation of Macroscopic Order by the Director Fluctuation of a Nematic Liquid Crystal
  • Author(s): A. Sugimura, T. Matsuda, A. Kasatani
  • Organizer: 第61回 応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学
• [Remarks] 杉村研究室 Liquid Crystal Science Laboratory
  • URL: http://nematic.ise.osaka-sandai.ac.jp/index-e.html
• [Remarks]
  • URL: http://nematic.ise.osaka-sandai.ac.jp/index-e.html
• [Funded Workshop] Informal Meeting on the Field-induced Phase Transition of Glucosides (2015)
  • Place of Presentation: Maiko Villa, Kobe, Japan
  • Year and Date: 2015-11-28