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CONCENTRATIONS OF HYDROPHOBIC SOLUTES IN WATER BY CYCLODEXTRINS

Research Project

Project/Area Number 04640559
Research Category

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

Allocation TypeSingle-year Grants
Research Field 分析・地球化学
Research InstitutionKUMAMOTO UNIVERSITY

Principal Investigator

DEGUCHI Toshio  KUMAMOTO UNIV., DEPT.OF CHEM., PROF., 理学部, 教授 (00040113)

Co-Investigator(Kenkyū-buntansha) TANAKA Akira  KUMAMOTO UNIV., DEPT.OF CHEM., INSTRUCTOR, 理学部, 助手 (50163499)
SANEMASA Isao  KUMAMOTO UNIV., DEPT.OF CHEM., PROF., 理学部, 教授 (60040119)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1992: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsCyclodextrin / Hydrophobic solute / Inclusion / Molar ratio of inclusion complex / Two-guest-inclusion / Elemental mercury / Aromatic hydrocarbon / Association / ホスト-ゲスト / 会合定数 / 水溶解度
Research Abstract

Cyclodextrin (CD) is cyclic oligosaccharide consisting of glucopyranose units with a central cavity. While the outside of CD molecule is hydropilic, the cavity inside forms a hydropobic environment, and a variety of molecular species are held as guests in aqueous medium if they suitably fit in the space, making CD act as a host. Anotherfactor which governs the host-guest association is the guest hydrophobicity : more hydrophobic guest molecules form more stable inclusion complexes with CD.The present work concerns with (1) the solubility in water and the guest/host molar ratio of CD complexes with hydrophobic hydrocarbons, (2) a steric factor which governs the host-guest association, (3) a factor which governs the guest/host molar ratio in CD complexes prepared in the presence of two different guests, and (4) volatilization of nonelectrolytes from CD precipitates with volatile nonelectrolytes. Such informations are fundamental and important in applying CD to analytical chemistry. The part (1) was published in Bull. Chem.Soc.Jpn., 66, 1424-1429 (1993), under the title "Preparation of Cyclodextrin Precipitates with Volatile Hydrocarbons in Aqueous Media, and Determination of Hydrocarbon/Cyclodextrin Molar Ratios in the Precipitates", the part (2) was published in Nippon Kagaku Kaishi, 1501-1503 (1992), under the title "Association of Elemental Mercury with Cyclodextrins in Aqueous Medium", the part (3) was published in Bull.Chem.Soc.Jpn., 67, 578-581 (1994), under the title "Cyclodextrin Precipitates with Naphthalene-Biphenyl Mixed Guests in Aqueous Medium", and the part (4) is now preparing for publication.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 實政 勲: "水溶液中での単体水銀とシクロデキストリンとの会合" 日本化学会誌. 1501-1503 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Isao Sanemasa: "Preparation of Cyclodextrin Precipitates with Volatile Hydrocarbons in Aqueous Media,and Determination of Hydrocarbon/Cyclodextrin Molar Ratios in the Precipitates" Bulletin of The Chemical Society of Japan. 66. 1424-1429 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Isao Sanemasa: "Cyclodextrin Precipitates with Naphthalene-Biphenyl Mixed Guests in Aqueous Medium" Bulletin of The Chemical Society of Japan. 67. 578-581 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sanemasa, I., Wu, Y., Koide, Y., Sigenaga, M., Ishibashi, K.and Deguchi, T.: "Preparation of Cyclodextrin Precipitates with Volatile Hydrocarbons in Aqueous Media, and Determination of Hydrocarbon/Cyclodextrin Molar Ratios in the Precipitates" Bull.Chem.Soc.Jpn.66. 1424-1429 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sanemasa, I., Koide, Y., and Deguchi, T.: "Association of Elemental Mercury with Cyclodextrins in Aqueous Medium" Nippon Kagaku Kaishi. 1501-1503 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Sanemasa, I., Takahashi, H.Ishibashi, K.and Deguchi, T.: "Cyclodextrin Precipitates with Naphthalene-Biphenyl Mixed Guests in Aqueous Medium" Bull.Chem.Soc.Jpn.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 67. 578-581 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Isao Sanemasa: "Cyclodextrin Precipitates with Naphthalene-Biphenyl Mixed Guests in Aqueous Medium" Bulletin of the Chemical Society of Japan. 67. 578-581 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 實政 勲: "Preparation of Cyclodextrin Precipitates with Volatile Hydrocarbons in Aqueous Media,and Determination of Hydrocarbon/Cyclodextrin Molar Ratios in the Precipitates" Bulletin of the Chemical Society of Japan. 66. (1993)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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