Issue 33, 2005
From the journal:

Journal of Materials Chemistry

Structure of self-assembled n-dodecyl substituted azobenzene poly(phenylene) dendrimers on graphite

Ke Ding,ab   Dörthe Grebel-Koehler,a   Rüdiger Berger,a   Klaus Müllena  and  Hans-Jürgen Butt*a  

* Corresponding authors

a Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany

b Physikalische Chemie, Universität Siegen, 57068 Siegen, Germany
E-mail: butt@mpip-mainz.mpg.de

Abstract

The highly ordered structure of a new class of dendrimers, n-dodecyl substituted azobenzene poly(phenylene) dendrimers, which self-assemble on highly oriented pyrolytic graphite surfaces, was studied by atomic force and scanning tunnelling microscopy. The second and third generations of this dendrimer have been investigated for the formation of layers consisting of parallel strips with 4.5 and 5.7 nm spacing, respectively. We found that the lamellar packing of the alkyl chains on the graphite surface was responsible for the macromolecular structure. Annealing above 70 °C played an important role in sample preparation. The macromolecular structure was found to be independent of the solvent used during spin-coating.

Graphical abstract: Structure of self-assembled n-dodecyl substituted azobenzene poly(phenylene) dendrimers on graphite

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Article information

DOI
https://doi.org/10.1039/B501471A
Article type
Paper
Submitted
28 Jan 2005
Accepted
23 Jun 2005
First published
20 Jul 2005

J. Mater. Chem., 2005,15, 3431-3436

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Structure of self-assembled n-dodecyl substituted azobenzene poly(phenylene) dendrimers on graphite

K. Ding, D. Grebel-Koehler, R. Berger, K. Müllen and H. Butt, J. Mater. Chem., 2005, 15, 3431 DOI: 10.1039/B501471A

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