Improvement of the film thickness by modification of the hydroxymethylbenzene SAM with tetraethoxysilane and octanediol for protection of iron from corrosion in 0.5 M NaCl

Tadashi Shimura, Kunitsugu Aramaki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

For enhancing the protective efficiency, P of a film prepared by modification of a p-hydroxymethylbenzene HOC6H4 (HOMB) self-assembled monolayer (SAM) adsorbed on iron by the formation of a covalent bond, an increase in the film thickness, d was attempted. The HOMB SAM was modified with tetraethoxysilane (C2H5O)4Si (TES), 1,8-octanediol HO(CH2)8OH (C8DO), 1,2-bis(triethoxysilyl)ethane (C2H5O)3Si(CH2)2Si(OC2H5)3 (BTESE) and alkyltriethoxysilane CnH2n+1Si(OC2H5)3 (CnTES, n = 8 or 18). The P value of the film was determined by polarization measurement of a covered iron electrode in an aerated 0.5 M NaCl solution after immersion in the solution for 1.5-72 h of the immersion time, t. High values of P, more than 82% were obtained for the films of HOMB SAM modified with TES, C8DO and CnTES and with TES, C8DO, BTESE and CnTES in the range of t up to 72 h. The highest value was 93.2%, for the film of HOMB SAM modified with TES, C8DO, BTESE and C18TES, of which d was 4.7 nm. The film of HOMB SAM modified with TES, C8DO and C8TES was characterized by contact angle measurement, X-ray photoelectron spectroscopy and FTIR reflection spectroscopy.

Original languageEnglish
Pages (from-to)1397-1405
Number of pages9
JournalCorrosion Science
Volume50
Issue number5
DOIs
Publication statusPublished - 2008 May

Fingerprint

Self assembled monolayers
Film thickness
Iron
Corrosion
Polymers
Covalent bonds
Angle measurement
Ethane
Contact angle
X ray photoelectron spectroscopy
tetraethoxysilane
TES
Spectroscopy
Polarization
Electrodes

Keywords

  • A. Iron
  • B. Polarization
  • C. Covalent-bonded self-assembled monolayer
  • C. Film thickness
  • C. Two-dimensional polymer coatings

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

@article{f01ea6454c2f4c8f93b304ca66cceffa,
title = "Improvement of the film thickness by modification of the hydroxymethylbenzene SAM with tetraethoxysilane and octanediol for protection of iron from corrosion in 0.5 M NaCl",
abstract = "For enhancing the protective efficiency, P of a film prepared by modification of a p-hydroxymethylbenzene HOC6H4 (HOMB) self-assembled monolayer (SAM) adsorbed on iron by the formation of a covalent bond, an increase in the film thickness, d was attempted. The HOMB SAM was modified with tetraethoxysilane (C2H5O)4Si (TES), 1,8-octanediol HO(CH2)8OH (C8DO), 1,2-bis(triethoxysilyl)ethane (C2H5O)3Si(CH2)2Si(OC2H5)3 (BTESE) and alkyltriethoxysilane CnH2n+1Si(OC2H5)3 (CnTES, n = 8 or 18). The P value of the film was determined by polarization measurement of a covered iron electrode in an aerated 0.5 M NaCl solution after immersion in the solution for 1.5-72 h of the immersion time, t. High values of P, more than 82{\%} were obtained for the films of HOMB SAM modified with TES, C8DO and CnTES and with TES, C8DO, BTESE and CnTES in the range of t up to 72 h. The highest value was 93.2{\%}, for the film of HOMB SAM modified with TES, C8DO, BTESE and C18TES, of which d was 4.7 nm. The film of HOMB SAM modified with TES, C8DO and C8TES was characterized by contact angle measurement, X-ray photoelectron spectroscopy and FTIR reflection spectroscopy.",
keywords = "A. Iron, B. Polarization, C. Covalent-bonded self-assembled monolayer, C. Film thickness, C. Two-dimensional polymer coatings",
author = "Tadashi Shimura and Kunitsugu Aramaki",
year = "2008",
month = "5",
doi = "10.1016/j.corsci.2007.12.010",
language = "English",
volume = "50",
pages = "1397--1405",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - Improvement of the film thickness by modification of the hydroxymethylbenzene SAM with tetraethoxysilane and octanediol for protection of iron from corrosion in 0.5 M NaCl

AU - Shimura, Tadashi

AU - Aramaki, Kunitsugu

PY - 2008/5

Y1 - 2008/5

N2 - For enhancing the protective efficiency, P of a film prepared by modification of a p-hydroxymethylbenzene HOC6H4 (HOMB) self-assembled monolayer (SAM) adsorbed on iron by the formation of a covalent bond, an increase in the film thickness, d was attempted. The HOMB SAM was modified with tetraethoxysilane (C2H5O)4Si (TES), 1,8-octanediol HO(CH2)8OH (C8DO), 1,2-bis(triethoxysilyl)ethane (C2H5O)3Si(CH2)2Si(OC2H5)3 (BTESE) and alkyltriethoxysilane CnH2n+1Si(OC2H5)3 (CnTES, n = 8 or 18). The P value of the film was determined by polarization measurement of a covered iron electrode in an aerated 0.5 M NaCl solution after immersion in the solution for 1.5-72 h of the immersion time, t. High values of P, more than 82% were obtained for the films of HOMB SAM modified with TES, C8DO and CnTES and with TES, C8DO, BTESE and CnTES in the range of t up to 72 h. The highest value was 93.2%, for the film of HOMB SAM modified with TES, C8DO, BTESE and C18TES, of which d was 4.7 nm. The film of HOMB SAM modified with TES, C8DO and C8TES was characterized by contact angle measurement, X-ray photoelectron spectroscopy and FTIR reflection spectroscopy.

AB - For enhancing the protective efficiency, P of a film prepared by modification of a p-hydroxymethylbenzene HOC6H4 (HOMB) self-assembled monolayer (SAM) adsorbed on iron by the formation of a covalent bond, an increase in the film thickness, d was attempted. The HOMB SAM was modified with tetraethoxysilane (C2H5O)4Si (TES), 1,8-octanediol HO(CH2)8OH (C8DO), 1,2-bis(triethoxysilyl)ethane (C2H5O)3Si(CH2)2Si(OC2H5)3 (BTESE) and alkyltriethoxysilane CnH2n+1Si(OC2H5)3 (CnTES, n = 8 or 18). The P value of the film was determined by polarization measurement of a covered iron electrode in an aerated 0.5 M NaCl solution after immersion in the solution for 1.5-72 h of the immersion time, t. High values of P, more than 82% were obtained for the films of HOMB SAM modified with TES, C8DO and CnTES and with TES, C8DO, BTESE and CnTES in the range of t up to 72 h. The highest value was 93.2%, for the film of HOMB SAM modified with TES, C8DO, BTESE and C18TES, of which d was 4.7 nm. The film of HOMB SAM modified with TES, C8DO and C8TES was characterized by contact angle measurement, X-ray photoelectron spectroscopy and FTIR reflection spectroscopy.

KW - A. Iron

KW - B. Polarization

KW - C. Covalent-bonded self-assembled monolayer

KW - C. Film thickness

KW - C. Two-dimensional polymer coatings

UR - http://www.scopus.com/inward/record.url?scp=42049084402&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42049084402&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2007.12.010

DO - 10.1016/j.corsci.2007.12.010

M3 - Article

AN - SCOPUS:42049084402

VL - 50

SP - 1397

EP - 1405

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

IS - 5

ER -