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Restaurator. International Journal for the Preservation of Library and Archival Material

Editor-in-Chief: Eyb-Green, Sigrid / Henniges, Ute

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Volume 22, Issue 2

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Hydrolytic and Oxidative Degradation of Paper

Simona Margutti
  • Dipartimento di Chimica e Chimica Industriale dell'Università, Via Dodecaneso, 31, 16146 Genova, Italy, Tel.: 0039-0103538713, Fax: 0039-0103536199
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Giuseppina Conio
  • IMAG-CNR, Via De Marini, 6, 16149 Genova, Italy, Tel.: 0039-0106475877. E-mail: conio@imag.ge.cnr.it
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/ Paolo Calvini
  • Soprintendenza per i Beni Culturali ed Architettonici della Liguria, Via Balbi, 10, 16126 Genova, Italy, Tel.: 0039-01027101. E-mail: pacalvin@tin.it
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/ Enrico Pedemonte
  • Dipartimento di Chimica e Chimica Industriale dell'Università, Via Dodecaneso, 31, 16146 Genova, Italy, Tel.: 0039-0103538713, Fax: 0039-0103536199. E-mail: pede@chimica.unige.it
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Published Online: 2008-01-11 | DOI: https://doi.org/10.1515/REST.2001.67

SUMMARIES

Two samples of pure cellulose of different degree of polymerisation values were submitted to oxidation degradation by a specific agent (sodium metaperiodate) and by a non-specific agent (sodium hypochlorite). The degradation process was monitored by viscosity measurements in order to check the degree of polymerisation. It is demonstrated that both samples have similar behaviour and that the degradation process results in a common value. The samples were also submitted to FTIR spectroscopy and the results make obvious that different functional groups derive from the oxidation process.

Dans cette étude deux échantillons de cellulose pure à différents degrés de polymérisation ont été soumis à une dégradation oxydative par un agent spécifique (sodium métapériodate) et par un agent non-spécifique (sodium hypochlorite). Le processus de dégradation a été contrôlé en effectuant des mesures de la viscosité afin de déterminer le degré de polymérisation. L'étude a démontré que les deux échantillons ont un comportement similaire et que le processus de dégradation aboutit à la même valeur limite du degré de polymérisation. Les échantillons ont été également soumis à une spectroscopie FTIR et les résultats ont mis en évidence que différents groupes fonctionnels proviennent du processus d'oxydation.

Es wurden zwei Proben aus reiner Zellulose von verschiedenem Polymerisationsgrad einer Oxidation durch ein spezifisches (Natriumperjodat) und durch ein unspezifisches Mittel (Natriumhypochlorit) unterworfen. An den Proben wurden Viskositätsmessungen zur Bestimmung des Polymerisationsgrades durchgeführt. Es wird gezeigt, daß die beiden Proben ein änliches Verhalten zeigen und daß der Abbau zum gleichen Grenzwert des Polymerisationsgrades führt. Die ebenfalls durchgeführten Messungen mit FTIR-Spektroskopie zeigen, daß sich an den verschieden behandelten Proben verschiedene funktionale Gruppen identifizieren lassen.

About the article

Published Online: 2008-01-11

Published in Print: 2001-06-01


Citation Information: Restaurator, Volume 22, Issue 2, Pages 67–83, ISSN (Print) 0034-5806, DOI: https://doi.org/10.1515/REST.2001.67.

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