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Science 8 May 1998:
Vol. 280. no. 5365, pp. 892 - 895
DOI: 10.1126/science.280.5365.892
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Reports
Ultrathin Films of a Polyelectrolyte with Layered Architecture
A. R. Esker,
C. Mengel,
G. Wegner
*
Posttransfer modification of preformed Langmuir-Blodgett films of
poly(tert-butyl methacrylate) and poly(tert-butyl
acrylate) by gaseous hydrochloric acid yields films with layered
architecture of poly(methacrylic acid) and poly(acrylic acid),
respectively. X-ray reflectivity and infrared spectroscopy confirm
monolayer by monolayer transfer of the source polymers and their
transformation to acid multilayer assemblies with retention of low
surface roughnesses. The incorporation of cross-linking groups into the
system offers the possibility for further chemical modification to
produce ultrathin films of model networks desirable for bioadsorption
studies and as hydrophilic spacing layers for tethered membranes.
Max-Planck-Institut für Polymerforschung, Ackermann Weg 10, D-55128 Mainz, Germany.
*
To whom correspondence should be addressed. E-mail:
wegner{at}mpip-mainz.mpg.de
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