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The Presence and Role of Paramagnetic Impurities in the Degradation of Paper

Published online by Cambridge University Press:  26 February 2011

Donato Attanasio ,
Donatella Capitani  and
Maria C. Emanuele
Donato Attanasio
Affiliation:
ICMAT, CNR, P.O. Box 10,00016 Monterotondo Staz., Roma, Italy.
Donatella Capitani
Affiliation:
ISC, CNR, P.O. Box 10,00016 Monterotondo Staz., Roma, Italy.
Maria C. Emanuele
Affiliation:
ICMAT, CNR, P.O. Box 10,00016 Monterotondo Staz., Roma, Italy.
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Abstract

Electron Spin Resonance spectroscopy has been used to carry out a systematic investigation of the paramagnetic impurities present in antique and modern paper. Up to eleven different paramagnetic centres, which include different transition ions (Fe3+, Mn2+, Cu2+), organic free radicals, and paramagnetic point defects have been detected, in concentrations ranging from few ppm to several hundreds. Experiments performed on new and deteriorated samples strongly indicate that some of these impurities participate directly or are produced during the aging and degradation processes. They can be used as quality indicators or probes for quantitative monitoring of the degradation of paper.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 462: Symposium DD – Materials Issues in Art and Archaeology V , 1996 , 387
Copyright
Copyright © Materials Research Society 1997

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References

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