A corrosion-protective coating based on a solution-processable polymer-grafted graphene oxide nanocomposite

Kai Qi, Yimin Sun, Hongwei Duan*, Xingpeng Guo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

191 Citations (Scopus)

Abstract

A new type of solution-processable graphene coating has been synthesized by grafting polymethylmethacrylate (PMMA) brushes on graphene oxide (GO) via surface-initiated atom transfer radical polymerization (ATRP). One major finding is that the PMMA-grafted GO nanocomposite exhibits synergistic properties of both building blocks, i.e., permeation inhibition of GO and solubility of PMMA in a variety of solvents, which makes it compatible with commonly used coating methods to form uniform coatings with controlled thickness. Our results demonstrate that PMMA-grafted GO coating can effectively block charge transfer at the metal-electrolyte interface and prevent corrosion of the copper substrate under aggressive saline conditions.

Original languageEnglish
Pages (from-to)500-506
Number of pages7
JournalCorrosion Science
Volume98
DOIs
Publication statusPublished - Sept 1 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

ASJC Scopus Subject Areas

  • General Chemistry
  • General Chemical Engineering
  • General Materials Science

Keywords

  • A. Copper
  • B. AFM
  • B. EIS
  • B. SEM
  • C. Polymer coatings

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