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NMR Imaging and Solid State High Resolution NMR Studies of Materials ; Properties and Internal Structural Changes in Materials.

Research Project

Project/Area Number 02453032
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 分析・地球化学
Research InstitutionTokyo University of Fisheries.

Principal Investigator

WATANABE Tokuko  Tokyo University of Fisheries・Faculty of Fisheries, Professor, 水産学部, 教授 (40092382)

Co-Investigator(Kenkyū-buntansha) YOKOYAMA Takushi  Kyushu University, College of General Education, Assoc. Professor, 教養部, 助教授 (20136419)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥7,100,000 (Direct Cost: ¥7,100,000)
Fiscal Year 1991: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1990: ¥6,300,000 (Direct Cost: ¥6,300,000)
KeywordsNMR imaging / solid state MAS / NMR / Al-NMR / Si-NMR / Mullite / Polymer material / diffusion / ceramics / 膨潤 / アルミノシリケ-ト / 固体高分解能NMR / ムライトプリカ-サ-
Research Abstract

In the present investigation, a new approach in material sciences has been done by using NMR imaging and solid state high resolution NMR methods. NMR imaging technique was used as an invasively, and continuously analysing method of the internal structural changes of materials.
New informations in the following four research projects were obtained ;
1)The structural change of amorphous aluminosilicates in the process of calcination : (1)Amorphous aluminosilicate which was directly changed into mullite was proposed as the mullite precursor. (2)The mullite precursor changes from amorphous to andulsite-like structure and finally into mullite. (3)Alkaline metal(Li, Na, K)ions affect the mullite formation process.
2)Imaging of diffusion processes of solvent in polymers : Polycarbonate and PMMA in aceton, DMSO, DMF and water were investigated. The swelling rate of solvent or the rate of solubility were determined.
3)Intercalation into clay minerals : The adsorption of DPPH in the interlayer of sodium montmorillonite and saponite was investigated by ESR. The intercalation mechanism seemed to be different between them because of the distinction of expandability.
4)Stability of five-coordinated Aluminium complexes : 5-coordinated AI complex, which is few in coordination chemistry of AI ion, was found in the calcinating process of aluminosilicates. NMR study of Aluminum complexes was planned additionally.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] T.Yokoyama,Y.Takahashi and T.Tarutani: "Retarding and Accelerating Effects of Aluminum on the Growth of Polysilicic Acid Particles." J.Colloid & Interface Sci.,. 141. 559-563 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y.Nakamura and T.Watanabe: "Intercalation of Free Radical,DPPH,into Montmorillonite." Anal.Sci.,. 7S. 431-434 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Yokoyama,S.Kinoshita H.Wakita and T.Watanabe: " ^<27>Al and ^<31>P NMR Study on the Interaction Between Al-EDTA Complex and H_2PO_4 Ions in Aqueous Solution." Anal.Sci.,. 7S. 429-430 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Yokoyama,K.Nishu,S.Torii,Y.Ikeda and T.Watanabe: "Mullite Precursor I.Characterization of Mullite Precursor Formed by Adsorption of Monosilicic Acid on Alminium Hydroxide." J.Am.Cer.Soc.,.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Yokoyama and T.Watanabe: "Differences of Structure Between 3/2 Mullite and 2/1 Mullite." Chem.Lett.,.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Yokoyamam K.Nishu,Y.Ikeda and T.Watanabe: "Structural Change from Amorphous Mullite Precursor to 3/2 Mullite in Thermal Treatment Process;Study by Solid State High Resolution 27Al and 29Si NMR." J.Am.Cer.Soc.,.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Yokoyama, Y. Takahashi and T. Tarutani: "Retarding and accelerating effects of Aluminium on the growth of polysilicic acid particles." J. Colloid & Interface Sci.,. 141. 559-563 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Nakamura and T. Watanabe: "Intercalation of free radical, DPPH, into montmorillonite." Anal. Sci.7S. 431-434 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Yokoyama, S. Kinoshita, H. Wakita and T. Watanabe: " ^<27>Al and ^<31>P NMR study on the interaction between Al-EDTA complex and H_2PO_4- ions in aqueous solution." Anal. Sci.7S. 429-430 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Fujiyama, T. Yokoyama, M. Hori and M. Sasaki: "Silica glass doped with Nd and Al prepared by sol-gel method. Change in the state of aluminium in the formation process." J. Non-Crystal. Solids. 135. 198-203 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Yokoyama, K/Nishu, S. Torii, Y. Ikeda and T. Watanabe: "Mullite precursor I. Characterization of mullite precursor formed by adsorption of monosilicic acid on aluminium hydroxid." J. Am. Cer. Soc.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Yokoyama and T. Watanabe: "Differences of structure between 3/2 mullite and 2/1 mullite by ^<27>Al and ^<29>Si MAS/NMR." Chem. Lett.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Yokoyama, K. Nishu, Y. Ikeda and T. Watanabe: "Structural change from amorphous mullite precursor to 3/2 mullite in the thermal treatment process ; Study by solid state high resolution ^<27>Al and ^<29>Si NMR." J. Am. Cer. soc.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Watanabe, Y. Yokoyama, K. Nishu and Y. Ikeda: "ESR study of Fe impurity in mullite precursor and mullite. Local crystal structure change in formation of mullite." J. Phys. Chem.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Ikeda, T. Yokoyama and T. Watanabe: "Alkaline metal ion effect to the structural changes from mullite precursor to mullite in thermal transformation process." J. Am. Cer. Soc.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Y. Ikeda, T. Yokoyama and T. Watanabe: "Thermally induced structural changes of Ge-mullite precursors." J. Am. Cer. Soc.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Yokoyama,K.Nishu,S.Torii,Y.Ikeda and T.Watanabe: "Mullite precursor I.Characterization of Mullite Precursor Formed by Adsorption of Monosilicic Acid on Aluminium Hydroxide." J.Am.Cer.Soc.

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Nakamura and T.Watanabe: "Intercelation of Free Redical,DPPH,into Montmorillonite." Anal.Sci.,. 7S. 431-434 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Yokoyama,S.Kinoshita,H.Wakita and T.Watanabe: " ^<27>Al and ^<31>P NMR Study on the Interaction between AlーEDTA Complex and H_2PO_4 Ions in Aqueous Solution." Anal.Sci.,. 7S. 429-430 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Yokoyama,Y.Ikeda and T.Watanabe: "Comparison between 3/2 Mullite and 2/1 Mullite in Structure by 27ーAl and 29ーSi MAS/NMR." J.Am.Cer.Soc.

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Yokoyama and T.Watanabe: "Alkaline Metal Ion Effect to the Structure Changes in Thermal Transformation of Mullite Precursor." J.Am.Cer.Soc.

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Yokoyam and T.Watanabe: "Thermally Induced Structural Changes of GeーMullite Precursor." J.Am.Cer.Soc.

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Yokoyama,Y.Takahashi,T.Tarutani: "Detering and accelration effect of Aluminium on the growth of polysilicic acid particles." J.Colloid & Interface Sci.,. 141. 559-563 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Yokoyama,K.Nishu,S.Torii,Y.Ikeda,and T.Watanabe: "Murite precursor I:Characterization of Murite precursor formed by adsorption of monosilicic acid on Aluminium hydroxide." J.Am.Ceramic Soc.,.

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Watanabe,T.Yokoyama,K.Nishuu and Y.Ikeda: "Structural change from amorphous murite precursor to 3/2 murite in thermal treatment process;Study by solid state high resolution NMR." J.Am.Ceramic Soc.,.

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Ikeda,Y.Yokoyama,and T.Watanabe: "MAS/NMR study of the structure of 3/2 murite and 2/1 murite." Chem.Lett.,.

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Watanabe,Y.Yokoyama,K.Nishu and Y.Ikeda: "ESR study of Fe impurity in murite precursor and murite.Local crystal structure change in formation of murite." J.Am.Ceramic Soc.,.

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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