Reference : Contribution to the identification of α-, β- and ε-copper phthalocyanine blue pigments i...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/135295
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
English
Defeyt, Catherine mailto [Université de Liège - ULg > > Centre européen en archéométrie >]
Vandenabeele, P. [Department of Archaeology Ghent University B-9000 Ghent Belgium]
Gilbert, Bernard mailto [Université de Liège - ULg > Département de chimie (sciences) > Département de chimie (sciences) >]
Van Pevenage, J. [Raman spectroscopy research group Ghent University B-9000 Ghent Belgium]
Cloots, Rudi mailto [Université de Liège - ULg > Département de chimie (sciences) > LCIS - GreenMAT >]
Strivay, David mailto [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie >]
2012
Journal of Raman Spectroscopy
43
1772-1780
Yes (verified by ORBi)
International
0377-0486
1097-4555
[en] Conservation science ; Copper phthalocyanine blue pigments ; Crystalline structure ; Modern artists' paints ; Nondestructive methods
[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.
http://hdl.handle.net/2268/135295
10.1002/jrs.4125

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