TITLE:
Polypyrrole Micro/Nanostructure Prepared Using Azo Dyes with Different Substituents
AUTHORS:
Dusan Kopecky, Jitka Skodova, Martin Vrnata, Premysl Fitl
KEYWORDS:
Polypyrrole; Nanostructure; Azo Dye; Soft-template
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.2 No.4B,
January
16,
2013
ABSTRACT: This contribution deals with simple way of polypyrrole structure modification. Using azo dyes in polymerization reaction as soft-template with similar molecular structure but different type and distribution of substitution groups lead to formation of one-dimensional and newly also three-dimensional polypyrrole micro/nanostructures. These structures are characteristic with geometrical symmetry and uniformity. Geometry of prepared structures was studied by scanning electron microscopy (SEM) and by methods of image analysis; nanotubes are hundreds of nm in diameter and units of μm in length, new tree-dimensional structures have units of μm in diameter. Infrared spectra (ATR-FTIR) confirmed that azo dyes work only as intermediate supporting structures without reaction with polypyrrole.