INVESTIGADORES
ARANGUREN Mirta Ines
congresos y reuniones científicas
Título:
Semi-conductive composites based on nanostructured polyaniline or cellulose-polyaniline particles
Autor/es:
U. CASADO; M. I. ARANGUREN; N. E. MARCOVICH
Lugar:
Praga
Reunión:
Conferencia; 7th International Conference on Nanostructured polymers and nanocomposites; 2012
Resumen:
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Introduction. Among intrinsically conducting polymers,
polyaniline (PANI) is unique due to its good environmental stability,
straightforward synthesis, and adjustable electrical properties. In particular low-dimensional
nanostructured PANI, such as nanoparticles, nanofibers and nanotubes,
nanosheets and nanobelts, have received considerable attention owing to the
huge number of potential applications. For some applications, however,
conducting polymers present certain deficiencies regarding specially the mechanical
performance and thus, technological uses of neat conducting polymers are not
very likely. However, the unique combination of electronic and mechanical
properties of blends of conducting polymers with conventional polymers seems to
have great promise for many applications, being the most important in antistatic
materials. Conductivities for antistatic applications need not to be high (10-6
- 10-5 S/cm ranges are sufficient). Thus, the aim of this work is to prepare
and characterize composite films based on a segmented polyurethane (SMPu)
reinforced with PANI fibers or with cellulose nanofibers coated with PANI. The
effect of the concentration of each filler on the mechanical and dielectric
properties of the resulting composites was evaluated.