Article (Scientific journals)
Contribution to the identification of α-, β- and ε-copper phthalocyanine blue pigments in modern artists' paints by X-ray powder diffraction, attenuated total reflectance micro-fourier transform infrared spectroscopy and micro-Raman spectroscopy
Defeyt, Catherine; Vandenabeele, P.; Gilbert, Bernard et al.
2012In Journal of Raman Spectroscopy, 43, p. 1772-1780
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Keywords :
Conservation science; Copper phthalocyanine blue pigments; Crystalline structure; Modern artists' paints; Nondestructive methods
Abstract :
[en] Since the end of the 20th century, the α-, β- and ε-copper phthalocyanine (CuPc) blue pigments are widely used in modern artists' paints. The identification of the CuPc crystalline structure can provide useful technical and chronological information for the study of works of art. Although when a CuPc blue pigment is identified, its crystalline structure often remains unspecified despite the interest for conservation science. In this study, X-ray powder diffraction, attenuated total reflectance micro-Fourier transform infrared spectroscopy and micro-Raman spectroscopy analyses have been carried out on 15 dry pigment samples of CuPc and acrylic, vinylic, alkyd, arabic gum and oil-based artists' paints. By using the polymorphic markers underlined for dry pigments, the CuPc crystalline structure has been successfully identified for most of the analysed artists' paints. However, according to the analytical technique used and the investigated paint sample, the obtained results largely differ. © 2012 John Wiley & Sons, Ltd.
Disciplines :
Chemistry
Author, co-author :
Defeyt, Catherine ;  Université de Liège - ULiège > Centre européen en archéométrie
Vandenabeele, P.;  Department of Archaeology Ghent University B-9000 Ghent Belgium
Gilbert, Bernard ;  Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Van Pevenage, J.;  Raman spectroscopy research group Ghent University B-9000 Ghent Belgium
Cloots, Rudi ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Strivay, David  ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Language :
English
Title :
Contribution to the identification of α-, β- and ε-copper phthalocyanine blue pigments in modern artists' paints by X-ray powder diffraction, attenuated total reflectance micro-fourier transform infrared spectroscopy and micro-Raman spectroscopy
Publication date :
2012
Journal title :
Journal of Raman Spectroscopy
ISSN :
0377-0486
eISSN :
1097-4555
Publisher :
John Wiley & Sons, Hoboken, United States - New York
Volume :
43
Pages :
1772-1780
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 November 2012

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