Adsorption of poly(vinylformamide-co-vinylamine) polymers (PVFA-co-PVAm) on copper

Langmuir. 2012 Oct 23;28(42):14935-43. doi: 10.1021/la302855f. Epub 2012 Oct 15.

Abstract

The adsorption of poly(vinylformamide) (PVFA) and its derivative statistical copolymer poly(vinyl-formamide-co-vinylamine) (PVFA-co-PVAm) on metallic copper and copper oxide particles as well as planar copper surfaces was studied as a function of the degree of hydrolysis of PVFA, the pH, and the polymer concentration in solution. The chemical composition and molecular structure of the PVFA-co-PVAm layers were investigated by surface-sensitive spectroscopic methods such as XPS, DRIFT spectroscopy, and ellipsometry. The findings allowed us to explain the adsorption mechanisms and the forces driving the PVFA-co-PVAm adsorption. It was shown that PVFA-co-PVAm layers thicker than 30 nm are able to protect the planar copper surface against corrosive attack.

MeSH terms

  • Adsorption
  • Copper / chemistry*
  • Formamides / chemistry*
  • Surface Properties
  • Vinyl Compounds / chemistry*

Substances

  • Formamides
  • Vinyl Compounds
  • poly(vinyl formamide-co-vinyl amine)
  • Copper
  • cuprous oxide