Formation of transparent conducting films based on core-shell lattices: influence of the polypyrrole shell thickness
article
Transparent conducting latex films have been prepared from core-shell lattices. The latex particles have a poly(butyl methacrylate) (PBMA) core of about 700 nm and a very thin polypyrrole (PPy) shell. We have studied the film formation of lattices with 1, 2, and 4 wt % PPy and compared this with the film formation of the pure PBMA latex. The film formation process was studied by transparency measurements, atomic force microscopy surface flattening, and transmission electron microscopy on ultrathin sections of films after various annealing times at 120 °C. It is demonstrated that highly transparent (>90%) and antistatic films can be produced using these lattices. The presence of a polypyrrole shell around the PBMA latex particle seriously hinders the deformation of the particles. The amount of polypyrrole, and thus the shell thickness, is the determining factor for the speed of film formation.
Topics
TNO Identifier
235933
ISSN
00218995
Source
Journal of Applied Polymer Science, 79(5), pp. 900-909.
Publisher
Wiley
Collation
10 p.
Place of publication
New York, NY, USA
Pages
900-909
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