Fluorescence study of the influence of Cu2+ ions on the kinetics of complexation of poly(acrylic acid) with polyvinylpyrrolidone
β Scribed by D.V. Subotic; J. Ferguson; B.C.H. Warren
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 289 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0014-3057
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β¦ Synopsis
The fluorescence of labelled poly(acrylic acid) (PAA*) is used to study the kinetics of the complexation between PAA* and polyvinylpyrrolidone (PVP) both in the presence and in the absence of Cu 2+ ions. It is found that the fluorescence intensity of the anilino-naphthalene sulphonic residues attached to PAA is enhanced when PAA is complexed with PVP. The fluorescence intensity is much higher in an ethanol-aqueous solution, and it is shown that the presence of Cu 2Γ· ions strongly influences the complexation kinetics.
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