Issue 19, 2012
From the journal:

RSC Advances

Strengthening of degraded cellulosic material using a diamine alkylalkoxysilane

Zied Souguir,a   Anne-Laurence Dupont,*a   Kateryna Fatyeyeva,b   Gérard Mortha,c   Hervé Cheradame,d   Stéphane Iperte  and  Bertrand Lavédrinea  

* Corresponding authors

a Centre de Recherche sur la Conservation des Collections, Museéum National d'Histoire Naturelle, CNRS USR 3224, 36 rue Geoffroy-Saint-Hilaire, Paris, France

b Laboratoire Polymères, Biopolymères, Surfaces, CNRS UMR 6270, Université de Rouen, Bd. Maurice de Broglie, 76821 Mont Saint Aignan Cedex, France

c Laboratoire de Génie des Procédés Papetiers (LGP2), UMR CNRS 5518, Grenoble INP-Pagora, 461 rue de la Papeterie, BP65, 38402 Saint Martin d'Hères Cedex, France

d Laboratoire Analyse et Modeélisation pour la Biologie et l'Environnement, CNRS UMR 8587, Universiteé d'Evry, Boulevard François Mitterrand, 91025 Evry cedex, France

e Centre de Conservation du Livre (CCL) L'Enclos Saint-Césaire, Impasse des Mourgues, 13200 Arles, France

Abstract

The physicochemical modifications in papers upon introducing AEAPMDMS (3 N-(2-aminoethyl)-3-aminopropylmethyl-dimethoxysilane) as a dry strength and deacidification agent were explored. The double amine functionality was shown to favor penetration in the cellulose fibers, with large uptakes being achieved at low concentration. In situ polymerization in the paper was demonstrated using 29Si CP-MAS and 1H NMR. The distribution of the compound inside and on the fibers' surface was evidenced with SEM-EDS and XPS. The deacidification efficacy was established. The strengthening effect was shown to arise from the interaction of AEAPMDMS with the fibers, and depended on the fiber composition (lignin content) and oxidation state, with a higher efficiency for the less degraded and less lignified fibers. In the most degraded papers, the occurrence of yellowing was interpreted as due to the formation of Schiff bases, where the amine functional group reacts with the carbonyl groups on the oxidized cellulose.

Graphical abstract: Strengthening of degraded cellulosic material using a diamine alkylalkoxysilane

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Article information

DOI
https://doi.org/10.1039/C2RA20957H
Article type
Paper
Submitted
16 May 2012
Accepted
09 Jun 2012
First published
13 Jun 2012

RSC Adv., 2012,2, 7470-7478

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Strengthening of degraded cellulosic material using a diamine alkylalkoxysilane

Z. Souguir, A. Dupont, K. Fatyeyeva, G. Mortha, H. Cheradame, S. Ipert and B. Lavédrine, RSC Adv., 2012, 2, 7470 DOI: 10.1039/C2RA20957H

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