Abstract
Thin-film protective coatings based on poly(p-xylylene) (PPX) and poly(chloro-p-xylylene) (PCPX) have been synthesized by vapor deposition polymerization (VDP) in a vacuum and deposition in a nitrogen flow. Comparison of characteristics of the PPX coatings by atomic force microscopy, infrared spectroscopy, and thermogravimetric analysis has shown that the films deposited in a nitrogen flow, unlike the films prepared by VPD in a vacuum, contain a large amount of low-molecular-weight fractions that worsen the protective characteristics of the films. In addition, the growth rate of these films is too low for practical applications. Analysis of the PCPX-based coatings prepared by these methods has shown a high similarity in composition and structure at comparable growth rates of the coatings. Owing to the high transparency and hydrophobicity of PCPX coatings prepared by deposition in a nitrogen flow, they can be used for the conservation of historical artifacts and written monuments on paper media.
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This work was supported by the Russian Foundation for Basic Research (project no. 18-00-00427) within the framework of complex project KOMFI 18-00-00429(K) using the equipment of the Resource Centers of Kurchatov Institute National Research Center.
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Nesmelov, A.A., Zavyalov, S.A., Streltsov, D.R. et al. Poly(p-Xylylene) and Poly(chloro-p-Xylylene) Protective Coatings Prepared by Deposition in a Nitrogen Flow. Nanotechnol Russia 15, 647–654 (2020). https://doi.org/10.1134/S1995078020050092
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DOI: https://doi.org/10.1134/S1995078020050092