UV/Vis and SFM studies on Langmuir monolayers and Langmuir-Blodgett films of 16-mer aniline and o-pentadecylaniline blends

Citation
V. Hartmann et al., UV/Vis and SFM studies on Langmuir monolayers and Langmuir-Blodgett films of 16-mer aniline and o-pentadecylaniline blends, MAT SCI E C, 8-9, 1999, pp. 425-429
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS
ISSN journal
09284931 → ACNP
Volume
8-9
Year of publication
1999
Pages
425 - 429
Database
ISI
SICI code
0928-4931(199912)8-9:<425:UASSOL>2.0.ZU;2-S
Abstract
The synthesis of a new amphiphilic blend of aniline, between a 16-mer oligo aniline and o-pentadecylaniline (oPA), in molecular films is reported and i ts morphology and UV/Vis absorption properties are characterized. The blend forms stable Langmuir monolayers at the air/water interface and successful deposition into Langmuir-Blodgett (LB) films was achieved by vertical dipp ing. By preparing Langmuir monolayers on acidic subphases containing peroxo disulfate. it was straightforward to polymerize the oligomer-monomer mixtur e. Deposited LB samples exhibited molecularly smooth surfaces, as determine d by scanning force microscopy (SFM). The electrooptical properties of mono - and multilayers of 16-mer aniline/oPA mixtures and the polymerized blend were analyzed by UV/Vis spectroscopy. (C) 1999 Elsevier Science S.A. All ri ghts reserved.