3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution

In this work, biopolymer based sol-gel was synthesized by doping 3-mercaptopropanoic acid (MPA) with chitosan and a hybrid of 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetraethoxysilane (TEOS). Prepared MPA/hybrid-doped chitosan was applied toa copper (Cu) metal surface by the self-assembly tech...

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Autores principales:	Jaganathan Balaji, Tae Hwan Oh
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	copper chitosan hybrid 3-mercaptopropanoicacid 3.5% NaCl Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/7d7f555347bb45c3ba4d63475ebed0fc
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spelling	oai:doaj.org-article:7d7f555347bb45c3ba4d63475ebed0fc2021-11-11T18:45:54Z3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution10.3390/polym132137432073-4360https://doaj.org/article/7d7f555347bb45c3ba4d63475ebed0fc2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3743https://doaj.org/toc/2073-4360In this work, biopolymer based sol-gel was synthesized by doping 3-mercaptopropanoic acid (MPA) with chitosan and a hybrid of 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetraethoxysilane (TEOS). Prepared MPA/hybrid-doped chitosan was applied toa copper (Cu) metal surface by the self-assembly technique to protect the Cu metal from corrosion in a 3.5% NaCl solution. The structure, mechanism and morphology of the modified electrodes were examined using Fourier transform infra-red (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDX), and atomic force microscopy (AFM). The decrease in surface roughness for Hy/chitosan/MPA-coated Cu indicates the formation of a dense layer on Cu metal confirmed by AFM. The corrosion protection evaluation of sol-gel coated electrodes was analyzed using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization studies (PDS) in a 3.5% NaCl medium. The MPA/hybrid-doped chitosan sol-gel coated Cu metal showed the greatest resistance to corrosionthanother sol-gel modified electrodes. The MPA-doped-chitosan/Hy sol-gel coating protected the Cu metal by an anodic dissolution process and improved its corrosion protection to 99.9%.Jaganathan BalajiTae Hwan OhMDPI AGarticlecopperchitosanhybrid3-mercaptopropanoicacid3.5% NaClOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3743, p 3743 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper chitosan hybrid 3-mercaptopropanoicacid 3.5% NaCl Organic chemistry QD241-441
spellingShingle	copper chitosan hybrid 3-mercaptopropanoicacid 3.5% NaCl Organic chemistry QD241-441 Jaganathan Balaji Tae Hwan Oh 3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution
description	In this work, biopolymer based sol-gel was synthesized by doping 3-mercaptopropanoic acid (MPA) with chitosan and a hybrid of 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetraethoxysilane (TEOS). Prepared MPA/hybrid-doped chitosan was applied toa copper (Cu) metal surface by the self-assembly technique to protect the Cu metal from corrosion in a 3.5% NaCl solution. The structure, mechanism and morphology of the modified electrodes were examined using Fourier transform infra-red (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDX), and atomic force microscopy (AFM). The decrease in surface roughness for Hy/chitosan/MPA-coated Cu indicates the formation of a dense layer on Cu metal confirmed by AFM. The corrosion protection evaluation of sol-gel coated electrodes was analyzed using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization studies (PDS) in a 3.5% NaCl medium. The MPA/hybrid-doped chitosan sol-gel coated Cu metal showed the greatest resistance to corrosionthanother sol-gel modified electrodes. The MPA-doped-chitosan/Hy sol-gel coating protected the Cu metal by an anodic dissolution process and improved its corrosion protection to 99.9%.
format	article
author	Jaganathan Balaji Tae Hwan Oh
author_facet	Jaganathan Balaji Tae Hwan Oh
author_sort	Jaganathan Balaji
title	3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution
title_short	3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution
title_full	3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution
title_fullStr	3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution
title_full_unstemmed	3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution
title_sort	3-mercaptopropanoic acid-doped chitosan/hybrid-based multilayer sol-gel coatings for cu protection in 3.5% nacl solution
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7d7f555347bb45c3ba4d63475ebed0fc
work_keys_str_mv	AT jaganathanbalaji 3mercaptopropanoicaciddopedchitosanhybridbasedmultilayersolgelcoatingsforcuprotectionin35naclsolution AT taehwanoh 3mercaptopropanoicaciddopedchitosanhybridbasedmultilayersolgelcoatingsforcuprotectionin35naclsolution
_version_	1718431711481561088

3-Mercaptopropanoic Acid-Doped Chitosan/Hybrid-Based Multilayer Sol-Gel Coatings for Cu Protection in 3.5% NaCl Solution

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