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Azémard C, Fauré MC, Stankic S, Chenot S, Ibrahim H, Laporte L, Fontaine P, Goldmann M, de Viguerie L. Influence of Unsaturations on the Organization and Air Reactivity of Triglyceride Monolayers. Langmuir 2022; 38:711-718. [PMID: 34985293 DOI: 10.1021/acs.langmuir.1c02613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The behavior of Langmuir monolayers of saturated and unsaturated C18 triglycerides (TAGs) was studied as two-dimensional (2D) models for paint systems at the air-water interface or transferred onto solid films. The organization of saturated tristearin (C18:0) monolayer was probed thanks to grazing incidence X-ray diffraction: one observes a hexagonal packing of the chains perpendicular to the air-water interface, in contrast to what is described in the literature. Conversely, the mono- and polyunsaturated TAGs (triolein C18:1, trilinolein C18:2, and trilinolenin C18:3) monolayers do not present any organization at the air-water interface but do exhibit peculiar reactivity regarding the air atmosphere. The obtained results derived from the evolution of surface pressure-molecular area isotherms and monolayer compressibility under different atmospheres over time, combined with ultrahigh-vacuum infrared (UHV-FTIR) spectroscopy, showed the adsorption of O2 molecules in the monolayer together with chemical reactions with hydrocarbon chains. The kinetic effect of lead ions, known to be efficient siccative agents in oil paints, was also assessed: the addition of Pb2+ in the subphase induces an increase of the O2 adsorption.
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Affiliation(s)
- C Azémard
- Sorbonne Université, CNRS UMR 8220, LAMS, 4 place Jussieu, 75252 Paris cedex 05, France
| | - M C Fauré
- Sorbonne Université, CNRS UMR 7588, Institut des NanoSciences de Paris INSP, 4 place Jussieu, 75252 Paris cedex 05, France
- UFR de Sciences Fondamentales et Biomédicales, Université de Paris, 45 rue des Saints-Pères, 75006 Paris, France
| | - S Stankic
- Sorbonne Université, CNRS UMR 7588, Institut des NanoSciences de Paris INSP, 4 place Jussieu, 75252 Paris cedex 05, France
| | - S Chenot
- Sorbonne Université, CNRS UMR 7588, Institut des NanoSciences de Paris INSP, 4 place Jussieu, 75252 Paris cedex 05, France
| | - H Ibrahim
- Sorbonne Université, CNRS UMR 7588, Institut des NanoSciences de Paris INSP, 4 place Jussieu, 75252 Paris cedex 05, France
| | - L Laporte
- Sorbonne Université, CNRS UMR 8220, LAMS, 4 place Jussieu, 75252 Paris cedex 05, France
| | - P Fontaine
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP48, 91192 Gif-Sur-Yvette, France
| | - M Goldmann
- Sorbonne Université, CNRS UMR 7588, Institut des NanoSciences de Paris INSP, 4 place Jussieu, 75252 Paris cedex 05, France
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP48, 91192 Gif-Sur-Yvette, France
- UFR de Sciences Fondamentales et Biomédicales, Université de Paris, 45 rue des Saints-Pères, 75006 Paris, France
| | - L de Viguerie
- Sorbonne Université, CNRS UMR 8220, LAMS, 4 place Jussieu, 75252 Paris cedex 05, France
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de Viguerie L, Pladevall NO, Lotz H, Freni V, Fauquet N, Mestre M, Walter P, Verdaguer M. Mapping pigments and binders in 15th century Gothic works of art using a combination of visible and near infrared hyperspectral imaging. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kononenko I, de Viguerie L, Rochut S, Walter P. Qualitative and quantitative studies of chemical composition of sandarac resin by GC-MS. Environ Sci Pollut Res Int 2017; 24:2160-2165. [PMID: 27464664 PMCID: PMC5340847 DOI: 10.1007/s11356-016-7261-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 07/14/2016] [Indexed: 06/06/2023]
Abstract
The chemical composition of sandarac resin was investigated qualitatively and quantitatively by gas chromatography-mass spectrometry (GC-MS). Six compounds with labdane and pimarane skeletons were identified in the resin. The obtained mass spectra were interpreted and the mass spectrometric behaviour of these diterpenoids under EI conditions was described. Quantitative analysis by the method of internal standard revealed that identified diterpenoids represent only 10-30% of the analysed sample. The sandarac resin from different suppliers was analysed (from Kremer, Okhra, Color Rare, La Marchande de Couleurs, L'Atelier Montessori, Hevea). The analysis of different lumps of resins showed that the chemical composition differs from one lump to another, varying mainly in the relative distributions of the components.
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Affiliation(s)
- I Kononenko
- Laboratoire d'Archéologie Moléculaire et Structurale, UMR 8220, CNRS - Université Paris VI, 75005, Paris, France.
| | - L de Viguerie
- Laboratoire d'Archéologie Moléculaire et Structurale, UMR 8220, CNRS - Université Paris VI, 75005, Paris, France
| | - S Rochut
- Laboratoire d'Archéologie Moléculaire et Structurale, UMR 8220, CNRS - Université Paris VI, 75005, Paris, France
| | - Ph Walter
- Laboratoire d'Archéologie Moléculaire et Structurale, UMR 8220, CNRS - Université Paris VI, 75005, Paris, France
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Salvant Plisson J, de Viguerie L, Tahroucht L, Menu M, Ducouret G. Rheology of white paints: How Van Gogh achieved his famous impasto. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.02.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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de Viguerie L, Beck L, Salomon J, Pichon L, Walter P. Composition of Renaissance Paint Layers: Simultaneous Particle Induced X-ray Emission and Backscattering Spectrometry. Anal Chem 2009; 81:7960-6. [DOI: 10.1021/ac901141v] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. de Viguerie
- Centre de Recherche et de Restauration des Musées de France (C2RMF, CNRS UMR 171), Palais du Louvre-Porte des Lions, 14 Quai François Mitterrand, 75001 Paris, France, and Institut National des Sciences et Techniques Nucléaires (INSTN), UESMS-CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - L. Beck
- Centre de Recherche et de Restauration des Musées de France (C2RMF, CNRS UMR 171), Palais du Louvre-Porte des Lions, 14 Quai François Mitterrand, 75001 Paris, France, and Institut National des Sciences et Techniques Nucléaires (INSTN), UESMS-CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - J. Salomon
- Centre de Recherche et de Restauration des Musées de France (C2RMF, CNRS UMR 171), Palais du Louvre-Porte des Lions, 14 Quai François Mitterrand, 75001 Paris, France, and Institut National des Sciences et Techniques Nucléaires (INSTN), UESMS-CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - L. Pichon
- Centre de Recherche et de Restauration des Musées de France (C2RMF, CNRS UMR 171), Palais du Louvre-Porte des Lions, 14 Quai François Mitterrand, 75001 Paris, France, and Institut National des Sciences et Techniques Nucléaires (INSTN), UESMS-CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Ph. Walter
- Centre de Recherche et de Restauration des Musées de France (C2RMF, CNRS UMR 171), Palais du Louvre-Porte des Lions, 14 Quai François Mitterrand, 75001 Paris, France, and Institut National des Sciences et Techniques Nucléaires (INSTN), UESMS-CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
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