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Phosphonic acid‐containing polysulfones as anticorrosive layers
Author(s) -
Chauveau Edouard,
Marestin Catherine,
Mercier Régis,
Brunaux Alexis,
Martin Vincent,
Nogueira Ricardo P.,
Percheron Aurélien,
Roche Virginie,
Waton Hugues
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.41890
Subject(s) - phosphonate , polymer , materials science , condensation polymer , nucleophilic substitution , polymer chemistry , metal , hydrolysis , corrosion , bisphenol a , substrate (aquarium) , organic chemistry , chemistry , epoxy , oceanography , geology
As a part of research work to elaborate polymeric materials for metal corrosion protection, we have developed a new family of phosphonic acid‐containing polymers. The synthesis and the characterization of polysulfones bearing alkyl phosphonate ester side groups are first described. These polymers are synthesized by direct polycondensation of a phosphonate ester‐containing bisphenol by aromatic nucleophilic substitution. The physicochemical properties of the resulting polymers are described. Acidic hydrolysis of phosphonate esters results in the formation of phosphonic acid groups. A series of phosphonic acid‐containing polysulfones is therefore obtained and characterized. A preliminary evaluation of the anticorrosive properties of these polymers is described. In 0.25M Na 2 SO 4 solution, the corrosion rate of a polymer‐coated mild steel sample is much lower than of the free metal substrate. These results suggest that phosphonic acid‐containing polysulfones might be interesting as anticorrosive coatings. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41890.