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Controlled Stepwise Growth of Siloxane Chains Using Bivalent Building Units With Different Functionalities

Published online by Cambridge University Press:  01 February 2011

Nils Salingue ,
Dominic Lingenfelser ,
Pavel Prunici  and
Hess Peter
Nils Salingue
Affiliation:
nils.salingue@urz.uni-heidelberg.de, University of Heidelberg, Physical Chemistry, Heidelberg, Germany
Dominic Lingenfelser
Affiliation:
dominic.lingenfelser@urz.uni-heidelberg.de, University of Heidelberg, Physical Chemistry, Heidelberg, Germany
Pavel Prunici
Affiliation:
pavel.prunici@urz.uni-heidelberg.de, University of Heidelberg, Physical Chemistry, Heidelberg, Germany
Hess Peter
Affiliation:
peter.hess@urz.uni-heidelberg.de, University of Heidelberg, Physical Chemistry, Heidelberg, Germany
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Abstract

Organic/inorganic hybrids of silicon and their subsequent chemical modification are of interest for tailoring and structuring surfaces on the nanoscale. The formation of monolayers on hydroxylated silicon surfaces was employed to synthesize molecular dimethylsiloxane chains by wet-chemical condensation reactions, using dimethylmonochlorosilane as the precursor. The SiH group of the resulting dimethylsilyl termination could be selectively oxidized to the SiOH group, which opened the possibility of bonding another species. By repeating the condensation and oxidation cycle the stepwise growth of one-dimensional dimethylsiloxane chains was achieved. The ongoing chain growth was characterized by attenuated total reflection (ATR) Fourier transform infrared (FTIR) spectroscopy, x-ray photoelectron spectroscopy (XPS), spectroscopic ellipsometry (SE), and determination of the surface energy by contact-angle experiments.

Keywords

surface chemistryinfrared (IR) spectroscopyx-ray photoelectron spectroscopy (XPS)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1272: Symposia KK/LL/NN/OO/PP – Integrated Miniaturized Materials-From Self-Assembly to Device Integration , 2010 , 1272-LL11-08
Copyright
Copyright © Materials Research Society 2010

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References

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