| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Castro, K.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2015Structural and chemical analyzer system for the analysis of deposited airborne particles and degradation compounds present on the surface of outdoor weathering steel objectscitations
- 2014The effect of calcium oxalates in the weathering steel surface
- 2013Multianalytical approach to study the dissolution process of weathering steel: The role of urban pollutioncitations
- 2011Classification and identification of organic binding media in artworks by means of Fourier transform infrared spectroscopy and principal component analysiscitations
- 2009Efficacy of Waterborne Polyurethane to Prevent the Enzymatic Attack on Paper-Based Materialscitations
- 2009Raman spectroscopy applied to the identification of rust products formed on weathering steel sculptures and the interaction with environmental factors.
- 2009On the micro-phase separation in waterborne polyurethanescitations
- 2008Analysis of a coloured Dutch map from the eighteenth centurycitations
Places of action
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article
Efficacy of Waterborne Polyurethane to Prevent the Enzymatic Attack on Paper-Based Materials
Abstract
The chemical and biological deterioration of paper-based materials is mainly due to the degradation of its main component, the cellulose. However, paper also contains small amounts of organic and inorganic additives which might influence its biodegradability. To protect the paper-based materials against various degradative agents, coating treatments with polymeric materials might be developed. In this study, the protective effect of commercial waterborne polyurethanes (WPU) against an enzymatic attack was investigated. Uncoated and coated samples with WPU of newsprint were subjected to degradation by enzymatic complexes (cellulosomes) produced by Clostridium cellulolyticum for different incubation times and then characterized using several analytical techniques (energy dispersive X-ray fluorescence, scanning electron microscopy, nuclear magnetic resonance, Raman and infrared spectroscopy) with the aim to assess if waterborne polyurethanes can be used in paper conservation, looking at their efficacy against the biodegradation induced by enzymes. The selected waterborne polyurethanes showed a high effectiveness in the protection of paper-based materials when they were submitted to the enzymatic attack. Indeed, their presence delayed the destruction of the cellulose matrix and the release of both soluble sugars and paper additives. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 2030-2040, 2009