• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

NANOSCALE CONTROL OF MOLECULAR DISPERSION-PHASE SEPARATION FOR TWO-DIMENSIONAL AGGREGATING SYSTEM

Research Project

Project/Area Number 09450039
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied physics, general
Research InstitutionSAGA UNIVERSITY

Principal Investigator

OISHI Yushi  SAGA UNIVERSITY, DEPARTMENT OF APPLIED CHEMISTRY, ASSOCIATE PROFESSOR, 理工学部, 助教授 (70194074)

Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥11,100,000 (Direct Cost: ¥11,100,000)
Fiscal Year 1999: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1998: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1997: ¥9,500,000 (Direct Cost: ¥9,500,000)
KeywordsMONOLAYER / BINARY SYSTEM / PHASE SEPARATION / COHESIVE ENERGY / MISCIBILITY GAP / SPINODAL DECOMPOSITION / II-A ISOTHERM / SCANNING PROBE MICROSCOPY / 表面圧-表面積曲線 / 多成分系 / 分子熱運動 / 静電的相互作用 / 原子間力顕微鏡 / 水平力顕微鏡
Research Abstract

Surface morphology of Langmuir mixed monolayer was investigated on the basis of a π-A isotherm measurement and a scanning probe microscopic observation. The molecular aggregating behavior of mixed monolayer markedly depended on difference in alkyl chain length, that is, cohesive energy between hydrophobic portions of fatty acids. The mixed monolayers for the cases of 4, 6 and 8 methylene units differences corresponding to 28, 42 and 56 kJ/mol for cohesive energy were in a molecular mixing state, phase separation in a miscibility gap and segregation in an immiscibility system, respectively. In particularly, the phase separated morphology was a co-continuous state, indicating the phase separation due to the spinodal decomposition. Moreover, the molecular aggregating state of the mixed monolayer changed from two-phase to one-phase with an increase in subphase temperature. This suggests that the mixed monolayer is assigned to the upper critical solution temperature type. The molecular aggregating behavior of the mixed monolayer was independent of the surface pressure for fatty acids in undissociated state, and also the monolayer phase of the single component system.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] Yushi Oishi: "Nanotribology of Behenic Acid Monolayer and Its Aggregation State"Colloids & Surfaces, A.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akihiro Harada: "Effect of Binding State between Hydrophilic and Hydrophobic Portions on Aggregation Structure of Monolayer"Colloids & Surfaces, A.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Miyuki Kuramori: "Phase Separation Behavior of (Palmitic Acid / Lignoceric Acid) Mixed Monolayer Based on a π-A Isotherm Measurement and 〜"Bulletin of the Chemical Society of Japan.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi: "Effect of Ionic Repulsion among Hydrohpilic Groups on Aggregation Structure of Fatty Acid Monolayer on the Water Surface"Langmuir. 13. 2527-2532 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi: "Control of Molecular Ordering in Guaridinium-functionalized Monolayer by Carboxylate template molecules"Chemical Communications. 1997. 1357-1358 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi: "Molecular Patterning of a Guanidinium / Orotate Mixed Monolayer through Molecular recognition with Flavin Adenine Dinucleotide"Langmuir. 13. 519-524 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi et al.: "Nanotribology of Behenic Acid Monolayer and Its Aggregation State"Colloids &Surfaces, A. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akihiro Harada et al.: "Effect of Binding State between Hydrophilic and Hydrophobic Portions on Aggregation Structure of Monolayer"Colloids &Surfaces, A. (in pres).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Miyuki Kuramori et al.: "Phase Separtion Behavior of (Palmitic Acid/Lignoceric Aci) Mixded Monolayer Based on a π-A Isotherm Measurement and a Scanning ProbeMicroscopic Observation"Bulletin of the Chemical Society of Japan. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi et al.: "Effect of Ionic Repulsion among Hydrophilic Groups on Aggregation Structure of Fatty Acid Monolayer on the Water Surface"Langmuir. 13. 2527-2532 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi et al.: "Control of Molecular Ordering in Guanidinium-functionalized Monolayer by CarboxylateTemplate Molecules"Chemical Communications. 1357-1358 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi et al.: "Molecular Patterning of a Guanidinium/Orotate Mixed Monolayer through Molecular Recognition with Flavin Adenine Dinucleotide"Langmuir. 13. 519-524 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yushi Oishi: "Nanotribology of behenic acid monolayer and its aggregation state"Colloids and Surfaces A.

    • Related Report
      1999 Annual Research Report
  • [Publications] Akihiro Harada: "Effect of binding state between hydrophilic and hydrophobic portions on aggregation structure of monolayer"Colloids and Surfaces A.

    • Related Report
      1999 Annual Research Report
  • [Publications] Miyuki Kuramori: "Phase separation behavior of (palmitic acid/ligroceric acid) mixed monolayer based on a π-A isotherm measurement and a scanning 〜"Bulletin of the Chemical Society of Japan.

    • Related Report
      1999 Annual Research Report
  • [Publications] Philippe Bissel: ""Heptopus",a novel class of amphiphiles with seven alkyl chains"Langmuir. 15・5. 1791-1795 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kenzo Takeno: "Subphase pH dependence of nanocluster size in (fluorocarbon carboxylic acid/hydrocarbon guanidinium) mixed monolayer"Reports on Progress in Polymer Physics in Japan. 42. 171-174 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tsutomu Umeda: "Mechanical properties of behenic acid monolayer based on measurements of film thickness"Reports on Progress in Polymer Physics in Japan. 42. 323-326 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Moire Pattern of Bilayered Fatty Acid Monolayers Based on Dark Field Imaging" Chem.Lett.565-566 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Scanring Probe Microscopic Observation of (Hydrocarbon Guanidinium/Fluorocarbon Carboxylic Acid) Mixed Monolayer" Rept.Prog.Polym.Phys.Jpn.41. 155-158 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Morphological Observation of (Palmitic Acid / Lignoceric Acid) Mixed Monolayer by Scanning Probe Microscopy" Rept.Prog.Polym.Phys.Jpn.41. 373-376 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Construction of a Defect-Diminished Fatty Acid Crystalline Monolayer by a Multistep Creep Method Based on Its Area-Creep Characteristics" Langmuir. 13. 6497-6501 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Control of Molecular Ordering in Guanidinium-Functionalized Monolayer by Carboxylate Template Molecnles" Chem.Cimmun.1357-1358 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Effect of Ionic Repulsion among Hydrophilic Groups on Aggregation Structure of Fatty Acid Monolayer on the Water Surface" Langmuir. 13. 2527-2532 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Construction of a Defect-Diminished Fatty Acid Crystalline Monolayer by a Multistep Creep Method Based on Its Area-Creep Characteristics" Langmuir. 13. 6497-6501 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Control of Molecular Arrangement in Langmuir-Blodgett Films of Chlorophyll a Prepared in Various Gas Phases Studied by Ultraviolet-Visible and Infrared Spectroscopies" Langmuir. 13. 4676-4682 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Control of Molecular Ordering in Guanidinium-Functionalized Monolayer by Carboxylate Template Molecules" Chem.Commun.1357-1358 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Effect of Ionic Repulsion among Hydrophilic Groups on Aggregation Structure of Fatty Acid Monolayer on the Water Surface" Langmuir. 13. 2527-2532 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Morphology and Molecular Orientation and Structure of Langmuir-Blodgett Films of Chlorophyll a Studied by Atomic Force Microscopy and UV-VIS and IR Spectroscopies" J.Chem.Soc.,Faraday Trans.93. 621-627 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yushi Oishi et al.: "Molecular Patterning of a Guanidinium/Orotate Mixed Monolayer through Molecular Recognition with Flavin Adenine Dinucleotide" Langmuir. 13. 519-524 (1997)

    • Related Report
      1997 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi