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Frontal polymerization of acrylic monomers for the consolidation of stone

Vicini, Silvia and Mariani, Alberto and Princi, Elisabetta and Bidali, Simone and Pincin, Silvia and Fiori, Stefano and Pedemonte, Enrico and Brunetti, Antonio (2005) Frontal polymerization of acrylic monomers for the consolidation of stone. Polymers for Advanced Technologies, Vol. 16 (4), p. 293-298. eISSN 10991581. Article.

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DOI: 10.1002/pat.584

Abstract

Polymeric products are largely used for consolidation of stone in the field of cultural heritage. Nevertheless, the main problem of polymeric compounds is related to their macromolecular nature, it being difficult for a polymer to penetrate inside the pores which may have a very small diameter. These considerations are the starting points for in situ polymerization. According to this technique, not the pre-formed polymer, but the monomer is introduced into the stone and it is polymerized in situ in a subsequent step. Frontal polymerization (FP) is a particular technique in which the heat released by the exothermal reaction of monomer to polymer conversion is exploited to promote the formation of a hot traveling front able to propagate and self-sustain the reaction. In the present work, FP is performed inside the pores of the stone and the results lead to the conclusion that the hot front is still active in the presence of an inorganic material which dissipates partially the heat released during the polymerization. In addition some recent applications of FP are discussed in comparison with the traditional polymerization for the in situ consolidation and protection of stones.

Item Type:Article
ID Code:2375
Status:Published
Refereed:Yes
Uncontrolled Keywords:Frontal polymerization, copolymerization, fluoropolymersz, adhesion, stone consolidation and protection
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Area 03 - Scienze chimiche > CHIM/04 Chimica industriale
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > INSTM-Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali, Unità di ricerca di Sassari
001 Università di Sassari > 01 Dipartimenti > Chimica
001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:Wiley
eISSN:10991581
Deposited On:18 Aug 2009 10:07

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