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Bifunctional Adhesion Promoter for Grafting Polypyrrole Films on Metal/Metal Oxide Surfaces
Author(s) -
Oberoi Sonia,
Jähne Evelin,
Adler HansJürgen P.
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200451311
Subject(s) - polypyrrole , bifunctional , x ray photoelectron spectroscopy , materials science , polymer chemistry , polymerization , monomer , metal , adsorption , oxide , contact angle , alkyl , surface plasmon resonance , pyrrole , polymer , inorganic chemistry , chemical engineering , chemistry , catalysis , organic chemistry , nanotechnology , composite material , nanoparticle , engineering , metallurgy
A new class of pyrrole derivatives, ω‐[(3‐phenyl) pyrrol‐1‐yl] alkyl phosphonic acids with long chains of 10 and 12 carbon atoms were synthesised to graft polypyrrole layers on metal/metal oxide surfaces. These compounds are bifunctional containing two reactive moieties, pyrrole as the polymerisable group and phosphonic acid as the anchoring group. Contact angle measurements and X‐ray photoelectron spectroscopy (XPS) confirmed adsorption with phosphonic acid group attached to the surface. Surface plasmon resonance (SPR) spectroscopy indicated that adsorption starts in seconds and is completed in few hours. Adsorption is followed by surface induced polymerisation with further monomer. We obtained dense and homogeneous polypyrrole films, which were characterised for their morphology and thickness by atomic force microscopy (AFM). The derivatives form a strongly bonded composite of metal with polymer.