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 1200–950cm−1, respectively. These last are attributed to intermolecular interactions of the polymer with CO3 2− 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.
Fluorinated polymers as stone-protective materials: an FTIR study on intermolecular interactions
D'ALESSIO, ALDO;NARDUCCI, PIERO;VERGAMINI, PIERGIORGIO;CIARDELLI, FRANCESCO;CATANORCHI, STEFANO
2004-01-01
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 1200–950cm−1, respectively. These last are attributed to intermolecular interactions of the polymer with CO3 2− 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
