Dynamics of liquid crystal molecules near the isotropic-nematic phase transition

• Project/Area Number: 20540399
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Biophysics/Chemical physics
• Research Institution: Osaka Sangyo University
• Principal Investigator: KATSUHIKO Satoh Osaka Sangyo University, 教養部, 准教授 (90388356)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 液晶 / 化学物理 / ソフトマター / 分子回転運動 / ダイナミクス / 分子動力学 / 分子シミュレーション / ネマティック

Research Abstract

Classical molecular dynamics simulations with two kinds of model potentials have been performed in order to investigate interrelationship between free volume and the 2nd-rank orientational relaxation time near the isotropic-nematic transition point. We have discussed on the relationship with molecular shape, pressure and potential dependences on the molecular reorientational relaxation time.

Research Products

• [Journal Article] Pressure dependence of phase transition behaviour in nematic and isotropic phases for the Gay? (2010)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Berne discogens, Molecular Crystals and Liquid Crystals Vol.516 Pages: 74-80
  • Peer Reviewed
• [Journal Article] The director and molecular dynamics of the field-induced alignment of a Gay-Berne nematic phase ; an isothermal-isobaric non-equilibrium molecular dynamics simulation study (2010)
  • Author(s): Geoffrey R.Luckhurst, Katsuhiko Satoh
  • Journal Title: Journal of Chemical Physics Vol.132
  • Peer Reviewed
• [Journal Article] Pressure dependence of phase transition behaviour in nematic and isotropic phases for the Gay-Berne discogens (2010)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Molecular Crystals and Liquid Crystals Volume: 516 Pages: 74-80
  • Peer Reviewed
• [Journal Article] The director and molecular dynamics of the field-induced alignment of a Gay-Bernenematic phase ; an isothermal-isobaric non-equilibrium molecular dynamics simulation study (2010)
  • Author(s): Geoffrey R.Luckhurst, Katsuhiko Satoh
  • Journal Title: Journal of Chemical Physics Volume: 132
  • Peer Reviewed
• [Journal Article] Pressure dependence of phase transition behaviour in nematic and isotropic phases for the Gay-Berne discogens (2010)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Molecular Crystals and Liquid Crystals 516 Pages: 74-80
  • Peer Reviewed
• [Journal Article] Effect of H_2O and carbonate ions on the hydrolysis of mechanochemically treated b-tricalcium bis(orthophosphate) (2009)
  • Author(s): K.Sakamoto, S.Yamaguchi, I.Fujihara, Y.Tusnawaki, K.Satoh, T.Kimura
  • Journal Title: Journal of the Ceramic Society of Japan Vol.117 Pages: 904-910
  • Peer Reviewed
• [Journal Article] Effect of H_2O and carbonate ions on the hydrolysis of mechanochemically treated b-tricalcium bis(orthophosphate) (2009)
  • Author(s): K.Sakamoto, S.Yamaguchi, I.Fujihara, Y.Tusnawaki, K.Satoh, T.Kimura
  • Journal Title: Journal of the Ceramic Society of Japan 117 Pages: 904-910
  • Peer Reviewed
• [Journal Article] Molecular dynamics simulation of pressure effect on phase transition behaviour and dynamics in isotropic and discotic nematic phases (2008)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Thin Solid Films Vol.517 Pages: 1411-1416
  • Peer Reviewed
• [Journal Article] Influence of dipolar interaction on the molecular dynamics for the dipolar Gay-Berne model GB(3,5,1,2) (2008)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Molecular Crystals and Liquid Crystals Vol.480 Pages: 202-218
  • Peer Reviewed
• [Journal Article] Synthesis and thermal decomposition of layered calcium phosphates including carboxylic acid (2008)
  • Author(s): K.Sakamoto, S.Yamaguchi, M.Kaneko, I.Fujihara, K.Satoh, Y.Tsunawaki
  • Journal Title: Thin Solid Films Vol.517 Pages: 354-1357
  • Peer Reviewed
• [Journal Article] Molecular dynamics simulation of pressure effect on phase transition behavior and dynamics in isotropic and discotic nematic phases (2008)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Thin Solid Films 517 Pages: 1411-1416
  • Peer Reviewed
• [Journal Article] Influence of dipolar interaction on the molecular dynamics for the dipolar Gay-Bememodel GB(3, 5, 1, 2) (2008)
  • Author(s): Katsuhiko Satoh
  • Journal Title: Molecular Crystals and Liquid Crystals 480 Pages: 202-218
  • Peer Reviewed
• [Journal Article] Synthesis and thermal decomposition of layered calcium phosphates including carboxylic acid (2008)
  • Author(s): K. Sakamoto, S. Yamaguchi, M. Kaneko, I. Fujihara, K. Satoh, Y. Tsunawaki
  • Journal Title: Thin Solid Films 517 Pages: 1354-1357
  • Peer Reviewed
• [Presentation] A study on static and dynamic property of pretransitional behaviour at the nematic-isotropic transition by computer simulation (2011)
  • Author(s): 佐藤克彦
  • Organizer: 11th European Conference on Liquid Crystals
  • Place of Presentation: Slovenia
• [Presentation] A study on static and dynamic property of pretransitional behaviour at the nematic-isotropic transition by computer simulation (2011)
  • Author(s): Katsuhiko Satoh
  • Organizer: 11th European Conference on Liquid Crystals
  • Place of Presentation: Maribor, Slovenia
• [Presentation] Computer simulation study of molecular dynamics and thermodynamic properties in vicinity of nematic-isotropic phase transition temperature (2010)
  • Author(s): 佐藤克彦
  • Organizer: 23rd International Liquid Crystal Conference
  • Place of Presentation: Poland
• [Presentation] Computer simulation study of molecular dynamics and thermodynamic properties in vicinity of nematic-isotropic phase transition temperature (2010)
  • Author(s): Katsuhiko Satoh
  • Organizer: 23rd International Liquid Crystal Conference
  • Place of Presentation: Krakow, Poland
• [Presentation] リン酸カルシウム混合系の加水分解反応における熱的研究 (2009)
  • Author(s): 坂本清子、山口俊郎、藤原一朗、佐藤克彦、綱脇恵章
  • Organizer: 第45回熱測定討論会
  • Place of Presentation: 東京
  • Year and Date: 2009-09-29
• [Presentation] リン酸カルシウム混合系の加水分解反応における熱的研究 (2009)
  • Author(s): 坂本清子, 山口俊郎, 藤原一朗, 佐藤克彦, 綱脇恵章
  • Organizer: 第45回 熱測定討論会(東京)
  • Place of Presentation: 首都大学東京
  • Year and Date: 2009-09-29
• [Presentation] Verification of thermodynamic scaling of a nematic phase by a molecular dynamics simulation (2009)
  • Author(s): 佐藤克彦
  • Organizer: European Conference of Liquid Crystals 2009
  • Place of Presentation: France
  • Year and Date: 2009-04-23
• [Presentation] Verification of thermodynamic scaling of a nematic phase by a molecular dynamics simulation (2009)
  • Author(s): 佐藤克彦
  • Organizer: European Conference of Liquid Crystals 2009
  • Place of Presentation: Colmar, France
  • Year and Date: 2009-04-23
• [Presentation] 分子動力学シミュレーションによる等方相およびネマティック相におけるモデル液晶分子のダイナミクス (2009)
  • Author(s): 佐藤克彦
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 千葉
  • Year and Date: 2009-03-27
• [Presentation] 分子動力学シミュレーションによる等方相およびネマティック相におけるモデル液晶分子のダイナミクス (2009)
  • Author(s): 佐藤克彦
  • Organizer: 日本化学会第89春季年会
  • Place of Presentation: 日本大学理工学部・船橋・千葉
  • Year and Date: 2009-03-27
• [Presentation] 生理活性を有する有機化合物を含有したリン酸八カルシウムの赤外線スペクトル (2008)
  • Author(s): 坂本清子、山口俊郎、藤原一朗、佐藤克彦、綱脇恵章
  • Organizer: 平成20年度日本赤外線学会研究発表会
  • Place of Presentation: 兵庫
  • Year and Date: 2008-10-30
• [Presentation] 生理活性を有する有機化合物を含有したリン酸八カルシウムの赤外線スペクトル (2008)
  • Author(s): 坂本清子, 山口俊郎, 藤原一朗, 佐藤克彦, 綱脇恵章
  • Organizer: 平成20年度日本赤外線学会研究発表会
  • Place of Presentation: 神戸大学百年記念会館六甲ホール・神戸・兵庫
  • Year and Date: 2008-10-30
• [Presentation] フッ素化物イオン存在下でのα型およびβ型ビス(オルトリン酸)三カルシウムの加水分解反応における熱的研究 (2008)
  • Author(s): 坂本清子、藤原一朗、佐藤克彦、山口俊郎、木村隆良
  • Organizer: 第44回熱測定討論会
  • Place of Presentation: 茨城
  • Year and Date: 2008-09-17
• [Presentation] フッ素化物イオン存在下でのα型およびβ型ビス(オルドリン酸)三カルシウムの加水分解反応における熱的研究 (2008)
  • Author(s): 坂本清子, 藤原一朗, 佐藤克彦, 山口俊郎, 木村隆良
  • Organizer: 第44回熱測定討論会
  • Place of Presentation: つくば国際会議場・つくば市・茨城
  • Year and Date: 2008-09-17
• [Presentation] Field angle dependence of molecular and director dynamics in the field-induced alignment of nematic phase (2008)
  • Author(s): 佐藤克彦
  • Organizer: The 4th Japanese-Italian Workshop on Liquid Crystals
  • Place of Presentation: 奈良
  • Year and Date: 2008-07-08
• [Presentation] Field angle dependence of molecular and director dynamics in the field-induced a lignment of nematic phase (2008)
  • Author(s): Katsuhiko Satoh
  • Organizer: The 4th Japanese-Italian Workshop on Liquid Crystals
  • Place of Presentation: 奈良新公会堂・奈良市・奈良
  • Year and Date: 2008-07-08
• [Presentation] Characteristic behavior of short-term dynamics in reorientation for Gay-Berne particles in nematic and isotropic phases (2008)
  • Author(s): 佐藤克彦
  • Organizer: 22nd International Liquid Crystal Conference
  • Place of Presentation: ICC, Jeju, Korea
  • Year and Date: 2008-07-04
• [Presentation] Characteristic behavior of short-term dynamics in reorientation for Gay-Beme particles in nematic and isotropic phases (2008)
  • Author(s): Katsuhiko Satoh
  • Organizer: 22nd International Liquid Crystal Conference
  • Place of Presentation: ICC, Jeju, Jeju, Korea
  • Year and Date: 2008-07-04
• [Presentation] Field angle dependence of the field-induced alignment on the director and molecular dynamics of nematic liquid crystal by computer simulation, Mini-Symposium on Recent Developments in NMR (2008)
  • Author(s): 佐藤克彦
  • Organizer: FTIR and SHG Studies of Liquid Crystals
  • Place of Presentation: 大阪
  • Year and Date: 2008-06-01
• [Presentation] Field angle dependence of the field-induced alignment on the director and molecular dynamics of nematic liquid crystal by computer simulation (2008)
  • Author(s): Katsuhiko Satoh
  • Organizer: Mini-Symposium on Recent Developments in NMR, FTIR and SHG Studies of Liquid Crystals
  • Place of Presentation: I&I Land ・ 四条畷市・大阪
  • Year and Date: 2008-06-01
• [Presentation] Characteristic behavior of short-term dynamics in reorientation for Gay-Berne particles near the nematic-isotropic phase transition temperature (2008)
  • Author(s): 佐藤克彦
  • Organizer: 2nd International Symposium on the Manipulation of Advanced Smart Materials
  • Place of Presentation: 兵庫
  • Year and Date: 2008-05-29
• [Presentation] Synthesis and thermal decomposition of layered calcium phosphates including carboxylic acid (2008)
  • Author(s): 佐藤克彦
  • Organizer: 2nd International Symposium on the Manipulation of Advanced Smart Materials
  • Place of Presentation: 兵庫
  • Year and Date: 2008-05-29
• [Presentation] Characteristic behavior of short-term dynamics in reorientation for Gay-Berne particles near the nematic-isotropic phase transition temperature (2008)
  • Author(s): Katsuhiko Satoh
  • Organizer: 2nd International Symposium on the Manipulation of Advanced Smart Materials
  • Place of Presentation: 淡路夢舞台国際会議場・淡路・兵庫
  • Year and Date: 2008-05-29
• [Presentation] Synthesis and thermal decomposition of layered calcium phosphates including carboxylic acid (2008)
  • Author(s): Katsuhiko Satoh
  • Organizer: 2nd International Symposium on the Manipulation of Advanced Smart Materials
  • Place of Presentation: 淡路夢舞台国際会議場・淡路・兵庫
  • Year and Date: 2008-05-29
• [Remarks] ホームページ等