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Fluorescence study of the influence of Cu2+ ions on the kinetics of complexation of poly(acrylic acid) with polyvinylpyrrolidone

✍ 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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✦ 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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