Evaluating the influence of paper characteristics on the efficacy of new poly(vinyl alcohol) based hydrogels for cleaning modern and ancient paper
| Autor: | Fabio Domenici, Laura Micheli, Claudia Mazzuca, Gaio Paradossi, Francesca Nanni, Leonardo Severini, M. Bragaglia, Mauro Missori, Manuel Tumiati, Mattia Titubante, Antonio Palleschi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Vinyl alcohol
Materials science 02 engineering and technology 01 natural sciences Polyvinyl alcohol Analytical Chemistry chemistry.chemical_compound Poly(vinyl alcohol) paper degradation cultural heritage hydrogel paper artworks Settore CHIM/01 Settore CHIM/02 paper artworks Settore CHIM/12 - Chimica dell'Ambiente e dei Beni Culturali Spectroscopy chemistry.chemical_classification Polymer science 010401 analytical chemistry Wet cleaning Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences poly(vinyl alcohol) chemistry Self-healing hydrogels hydrogel 0210 nano-technology |
| Zdroj: | Microchemical journal 155 (2020). doi:10.1016/j.microc.2020.104716 info:cnr-pdr/source/autori:Mazzuca C.; Severini L.; Missori M.; Tumiati M.; Domenici F.; Micheli L.; Titubante M.; Bragaglia M.; Nanni F.; Paradossi G.; Palleschi A./titolo:Evaluating the influence of paper characteristics on the efficacy of new poly(vinyl alcohol) based hydrogels for cleaning modern and ancient paper/doi:10.1016%2Fj.microc.2020.104716/rivista:Microchemical journal (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:155 |
| DOI: | 10.1016/j.microc.2020.104716 |
| Popis: | Wet cleaning of paper artworks by using hydrogels is a recently proposed process in the cultural heritage field. In this contest, on one side, research has focused on more effective and tuned cleaning hydrogels; on the other, the cleaning performances of the proposed hydrogels have been studied on ancient paper and very little on modern paper. This lack of information is not negligible, since the two kinds of paper differ strongly in composition. The difference, in turn could affect the performance of cleaning gels. In this article, new chemical hydrogels were synthetized using an oxidized polyvinyl alcohol (PVA) bearing an aldehyde group at each chain end, as cross-linking agent, i.e. telechelic PVA. PVA hydrogels have been characterized as candidates for paper cleaning applications. The possibility of tuning the mechanical and retentive properties, simply by changing the ratio of two polymer concentrations, their stability and transparency, indeed, render them, potentially suitable in cultural heritage field. The cleaning capability of two hydrogels, with different PVA/telechelic PVA ratios, has been assessed both on ancient paper, than a modern one and the results have been compared. The efficacy of these hydrogels has been demonstrated characterizing the samples before and after the cleaning process by means of a multidisciplinary approach involving spectroscopic and chromatographic tests. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|