Synthesis of novel partially perfluorinated C-glycosides and their application in blanching easel painting restoration

•Perfluorinated carbohydrate d-glucose synthesis using a green C-glycosylation.•Removing possible.•Ability to fill pores responsible of the optical effect of blanching (SEM-EDX experiments).•The need of chemical compounds for painting restoration, especially for the under-explored blanching.•More ac...

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Published inJournal of cultural heritage Vol. 62; pp. 493 - 500
Main Authors Zhang, Yuqing, Eveno, Myriam, Gallier, Florian, Camaiti, Mara, Lattuati-Derieux, Agnès, Salvini, Antonella, Lubin-Germain, Nadège
Format Journal Article
LanguageEnglish
Published Elsevier Masson SAS 01.07.2023
Elsevier
Subjects
Blanching
C-glycosides
Chemical Sciences
Easel paintings
Perfluorinated compounds
Restoration
Restoration
Perfluorinated compounds
C-glycosides
Easel paintings
Blanching
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Summary:•Perfluorinated carbohydrate d-glucose synthesis using a green C-glycosylation.•Removing possible.•Ability to fill pores responsible of the optical effect of blanching (SEM-EDX experiments).•The need of chemical compounds for painting restoration, especially for the under-explored blanching.•More active than the reference (already described DC6G900) by decreasing the brightness. Starting from the renewable, low-cost and easily available feedstocks, perfluorinated carbohydrate-based molecules and oligoamide/acrylic/silicon-based fluorinated molecules are synthesized and evaluated for easel painting restoration using their good hydrophobic properties. Prepared mock-ups were analysed before and after treatments by FEG-SEM for morphological changes, spectro-colorimetric analysis for surface color variation and reversibility treatments were measured by SEM-EDX. Compared to DC6G900 as the reference, C-Glc-OH, a perflurinated β-dglucopyranose might be a promising agent for blanching easel painting restoration. [Display omitted]
ISSN:1296-2074
1778-3674
DOI:10.1016/j.culher.2023.06.019