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2000 Fiscal Year Final Research Report Summary

Selective Adsorption of Dyes and Surfactants with Cyclodextrin Containing Polymers

Research Project

Project/Area Number 10680123
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 家政学一般(含衣・住環境)
Research InstitutionYamaguchi Prefectural University

Principal Investigator

IHARA Yasuji  Faculty of Human Life Sciences, Yamaguchi Prefectural University Professor, 生活科学部, 教授 (80106583)

Project Period (FY) 1998 – 2000
KeywordsDyes / Surfactants / Selective Adsorption / Cyclodextrins / OSOR Properties / Termodynamic Parameters / Fluorescence Spectrum / Bainding Constant
Research Abstract

(1)The adsorption isotherms of acid dyes onto polymers containing cyclodextrin (CD) were measured in aqueous solution. The adsorption affinities of dyes with water-soluble polymer increased with increases in the length of alkly chain units. The adsorption affinities of dyes with water-insoluble polymer increased with increases in the ratio of hydrophobic components. The relationship between adsorption affinities and OSQR properties were also discussed in order to determine preferred adsorption behaviors of different CD polymers and acid dyes.
(2)The adsorption isotherms of nonionic surfactants onto polymer adsorbent containing CDs were measured in aqueous solution. The adsorption affinities for nonionic surfactants decrease with increases in the length of oxyethylene units in the adsorbates. The adsorption affinities for sodium dodecylbenzene sulfonate (NaDBS) in nonionic surfactants decreased with increases in the ratio of nonionic surfactant to NaDBS.
(3)The inclusion complex formation of methyl orange and its homologs with CDs in aqueous solution was investigated by spectrophotometric measurements at different temperatures. It was found that α-and β-CDs formed 1 : 1 complexes, but γ-CD formed a 1 : 2 complex with dye molecules. The increases of the alkyl chain length in the dye molecules increased the binding constant. The entropy and enthalpy changes were calculated for the complex formation and contribution of entropy to the process was discussed.
(4)The inclusion complex formation of alkyl slufonate and its related compounds with CDs and double CDs in aqueous solution was investigated by fluorescence spectrum measurements at different temperatures. The increases of the alkyl chain length in the double CDs decreased the binding constant. The fitness of the alkyl sulfonate to the cavity of CD was suggested to affect the binding constant.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 伊原靖二: "シクロデキストリンによるメチルオレンジ同族体の包接作用に関する研究"山口県立大学生活科学部研究報告. 24. 1-6 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 伊原靖二: "シクロデキストリンポリマーによる染料含有廃水の吸着処理に関する研究"山口県立大学生活科学部研究報告. 25. 23-28 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 伊原靖二: "ダブルシクロデキストリンホストによるアルキルスルホン酸及びその関連化合物の包接作用に関する研究"山口県立大学生活科学部研究報告. 26. 33-38 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasuji IHARA: "Adsorption of Acid Dyes from Aqueous Solution onto Polymers Containing Cyclodextrin"Bulletin of Yamaguchi Prefectural University. 24. 1-6 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasuji IHARA: "Inclusion Complex Formation of Methyl Orange and its Homologs with Cyclodextrins"Bulletin of Yamaguchi Prefectural University. 25. 23-28 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasuji IHARA: "Inclusion Complex Formation of Alkyl Sulfonate and Related Compounds with Double Cyclodextrin Hosts"Bulletin of Yamaguchi Prefectural University. 26. 33-38 (2000)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2002-03-26  

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