Article (Scientific journals)
Stainless steel grafting of hyperbranched polymer brushes with an antibacterial activity: synthesis, characterization and properties
Ignatova, Milena; Voccia, Samuel; Gabriel, Sabine et al.
2009In Langmuir, 25 (2), p. 891-902
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Keywords :
electropolymerization; electrografting; coating; antibacterial polymer
Abstract :
[en] Two strategies were used for the preparation of hyperbranched polymer brushes with a high density of functional groups: (a) the cathodic electrografting of stainless steel by poly[2-(2-chloropropionate)ethyl acrylate] [poly(cPEA)], which was used as a macroinitiator for the atom transfer radical polymerization of an inimer, 2-(2-bromopropionate)ethyl acrylate in the presence or absence of heptadecafluorodecyl acrylate, (b) the grafting of preformed hyperbranched poly(ethyleneimine) onto poly(N-succinimidyl acrylate) previously electrografted onto stainless steel. The hyperbranched polymer, which contained either bromides or amines, was quaternized because the accordingly formed quaternary ammonium or pyridinium groups are known for antibacterial properties. The structure, chemical composition, and morphology of the quaternized and nonquaternized hyperbranched polymer brushes were characterized by ATR-FTIR reflectance, Raman spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy. The peeling test confirmed that the grafted hyperbranched polymer films adhered much more strongly to stainless steel than the nongrafted solvent-cast films. The quaternized hyperbranched polymer brushes were more effective in preventing both protein adsorption and bacterial adhesion than quaternary ammonium containing poly(cPEA) primary films, more likely because of the higher hydrophilicity and density of cationic groups.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Ignatova, Milena;  Université de Liège - ULiège, Bulgarian Academy of Science (Sofia, Bulgaria) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM, Liège) and Laboratory of BioactiVe Polymers (Sofia)
Voccia, Samuel;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Gabriel, Sabine ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Gilbert, Bernard ;  Université de Liège - ULiège > Department of Chemistry > Laboratory of Analytical Chemistry and Electrochemistry
Cossement, Damien;  University of Mons-Hainaut (UMH) > SerVice de Chimie Inorganique et Analytique (LASSIE)
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine  ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Stainless steel grafting of hyperbranched polymer brushes with an antibacterial activity: synthesis, characterization and properties
Publication date :
20 January 2009
Journal title :
Langmuir
ISSN :
0743-7463
eISSN :
1520-5827
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
25
Issue :
2
Pages :
891-902
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
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