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The action of lipophilic UV absorbers — solubilized by cyclodextrin — on photofading of aqueous solution of azoreactive dyes

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Abstract

Two representatives of water-insoluble UV absorbers ( 3-(4-methylbenzilidene)camphor and 2-hydroxy-4-methoxybenzophenon ), different in their chemical structure, could be solubilized by two pairs of studied CDs (BCD, GCD, RAMEB, AcGCD). The substituted CD entities were markedly more effective solubilizers than the unsubstituted ones. The rate of photofading of an aqueous azoreactive dye solution was significantly increased in the presence of the substituted CDs. Mixing UV absorbers, solubilized by the mentioned CDs, to the aqueous dye solution marked deceleration in photofading could be achieved.

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References

  1. Allen, N.S., Photofading mechanisms of dyes in solution and polymer media,Rev. Prog. Coloration,17, 61–71 (1987)

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  2. Szejtli, J., Cyclodextrin Technology, Kluwer Academic Publishers, Dodrecht, 1988

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Authors and Affiliations

  1. Technical University of Budapest, Department of Organic Chemical Technology, Műegyetem rkp. 3., H-1111, Budapest, Hungary

    Edit Rémi & István Rusznák

  2. CYCLOLAB Ltd., P.O. Box 435, H-1525, Budapest, Hungary

    Éva Fenyves

  3. Research Group of the Hungarian Academy of Sciences, TUB, Műegyetern rkp. 3., H-1111, Budapest, Hungary

    András Víg

Authors
  1. Edit Rémi
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  2. Éva Fenyves
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  3. István Rusznák
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  4. András Víg
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Rémi, E., Fenyves, É., Rusznák, I. et al. The action of lipophilic UV absorbers — solubilized by cyclodextrin — on photofading of aqueous solution of azoreactive dyes. J Incl Phenom Macrocycl Chem 25, 203–207 (1996). https://doi.org/10.1007/BF01041569

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  • DOI: https://doi.org/10.1007/BF01041569

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