Fluorinated polymers as stone-protective materials: an FTIR study on intermolecular interactions
Authors: Aldo D'Alessio1; Fabrizia Turchi1; Piero Narducci2; Piergiorgio Vergamini1; Francesco Ciardelli1; Stefano Catanorchi1
Source: Polymer International, Volume 53, Number 10, October 2004 , pp. 1567-1571(5)
Publisher: John Wiley & Sons, Ltd.
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Abstract:
Attempts have been performed to obtain spectroscopic evidence of intermolecular interactions between fluorinated polymers to be used as protective materials and various stones. In this paper we report an investigation by means of FTIR spectroscopy on poly(vinyl fluoride)(PVF) which contains acid hydrogens that can give rise to intermolecular interactions with calcium carbonate. Spectral changes have been found in the C—H and C—F stretching regions at 3000–2840 and 1200–950 cm-1, respectively. These last are attributed to intermolecular interactions of the polymer with CO32- and with conformational changes of the macromolecular chain. Scanning electron microscopy investigations were also performed on marble slabs coated with a PVF film in order to gain information about the morphology of the polymer film. Copyright © 2004 Society of Chemical IndustryKeywords: poly (vinyl fluoride) (PVF); marble (calcium carbonate: calcite); FTIR spectroscopy; SEM microscopic analysis
Document Type: Research article
DOI: 10.1002/pi.1600
Affiliations: 1: Dipartimento di Chimica e Chimica Industriale, Via Risorgimento 35, 56126 Pisa, Italy 2: Dipartimento di Ingegneria Chimica, Chimica Industriale e Scienze dei Materiali, via Diotisalvi 2, 56126 Pisa, Italy
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