Novel thiol-ene hybrid coating for metal protection

Taghavikish, M, Subianto, S, Dutta, N and Choudhury, N 2016, 'Novel thiol-ene hybrid coating for metal protection', Coatings, vol. 6, no. 2, pp. 1-14.

Document type: Journal Article
Collection: Journal Articles

Title Novel thiol-ene hybrid coating for metal protection
Author(s) Taghavikish, M
Subianto, S
Dutta, N
Choudhury, N
Year 2016
Journal name Coatings
Volume number 6
Issue number 2
Start page 1
End page 14
Total pages 14
Publisher M D P I AG
Abstract A novel hybrid anticorrosion coating with dual network of inorganic (Si-O-Si) and organic bonds (C-S-C) was prepared on metal through an in situ sol-gel and thiol-ene click reaction. This novel interfacial thin film coating incorporates (3-mercaptopropyl) trimethoxysilane (MPTS) and 1,4-di(vinylimidazolium) butane bisbromide based polymerizable ionic liquid (PIL) to form a thiol-ene based photo-polymerized film, which on subsequent sol-gel reaction forms a thin hybrid interfacial layer on metal surface. On top of this PIL hybrid film, a self-assembled nanophase particle (SNAP) coating was employed to prepare a multilayer thin film coating for better corrosion protection and barrier performance. The novel PIL hybrid film was characterised for structure and properties using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The corrosion protection performance of the multilayer coating was examined using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results reveal that this novel double layer coating on metal offers excellent protection against corrosion and has remarkably improved the barrier effect of the coating.
Subject Chemical Engineering not elsewhere classified
Keyword(s) hybrid film
(3-mercaptopropyl)trimethoxysilane (MPTS)
polymerizable ionic liquid (PIL)
thiol-ene reaction
DOI - identifier 10.3390/coatings6020017
Copyright notice © 2016 by the authors; licensee MDPI, Basel, Switzerland.
ISSN 2079-6412
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