Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Interaction between Poly(vinylpyrrolidone) and Ionic Dyes in Aqueous Solution System (I)

  • Lee, Sangchul (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Kim, Heain (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Park, Soomin (Department of Organic Material Science and Engineering, Pusan National University)
  • Received : 2012.09.03
  • Accepted : 2012.11.21
  • Published : 2012.12.27
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Abstract

The binding isotherms of ionic dyes with Poly(vinylpyrrolidone) in aqueous solution were determined by the dynamic dialysis technique. The shape of the isotherms of cationic dye, C. I. Basic Red 18 with poly(vinlypyrrolidone) showed a partition type. It suggests that the binding involves a non-cooperative mode. Isotherms of an anion dye, a synthesized dye by coupling of diazotized m-trifluoromethylaniline with 2-naphthol-6-sulfonic acid, were sigmoid type and showed multimode interaction. The results were interpreted by the McGhee von Hippel theory. The thermodynamic parameters for the complex formation of the dyes-polymer were calculated from their temperature dependences of the intrinsic binding constant.

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References

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