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Textile Research Journal
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An Electron Spin Resonance Study of the Copper (II) Interaction with Wool-Keratin

Part II: The Nature of the Copper (II) Interaction with Wool-Keratin

S. Kokot

School of Textile Technology, University of New South Wales, P. O. Box 1, Kensington, 2033, New South Wales, Australia

M. Feughelman

School of Textile Technology, University of New South Wales, P. O. Box 1, Kensington, 2033, New South Wales, Australia

R.M. Golding

School of Chemistry, University of New South Wales, P. O. Box 1, Kensington, 2033, New South Wales, Australia

An examination of the Cu (II)/wool esr signal intensity variations, together with other relevant copper (II) uptake data, have shown that two types of products are formed during the Cu (II)/wool interaction. One of these gives rise to the observed esr signal, while the other is a diamagnetic sulfide of copper. The latter product arises as a result of a reaction of the metal ion and the products of a water/wool interaction. A reaction scheme consistent with the experi mental observations is suggested.

Key Words: Wool fibers. Cu(II)/wool complex • keratin • protein • propanol • sulfide • thiol. Time • water • samples • pH. Atomic absorption • carboxyl • copper(II). Disulfide residue • esr • H2S • hydrolysis • intensity • magnetic moment • magnetic sus ceptibility • reaction scheme.

Textile Research Journal, Vol. 43, No. 3, 146-153 (1973)
DOI: 10.1177/004051757304300305
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