dc.contributor |
Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
dc.contributor |
Estrany Coda, Francesc |
dc.contributor.author |
Aradilla Zapata, David |
dc.date |
2009-07 |
dc.identifier.uri |
http://hdl.handle.net/2099.1/8153 |
dc.language.iso |
eng |
dc.publisher |
Universitat Politècnica de Catalunya |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers |
dc.subject |
Conducting polymers |
dc.subject |
Nanostructures |
dc.subject |
Polímers conductors |
dc.subject |
Nanoestructures |
dc.title |
Morphology and growing of nanometric multilayered films formed by alternated layers of poly(3,3-ethylenedioxythiophene) and poly(N-methylpyrrole) |
dc.type |
info:eu-repo/semantics/masterThesis |
dc.description.abstract |
Multilayered nanometric films formed by alternated layers of conducting poly(3,4-
ethylenedioxythiophene) and poly(N-methylpyrrole) doped with perchlorate anions (ml-
PEDOT/PNMPy) have been prepared using a layer-by-layer electrodeposition technique combined
with a very small polymerization time. The mechanisms of formation and growth of the resulting
multilayered systems have been investigated using Atomic Force Microscopy (AFM), and compared
with those obtained for the corresponding homopolymers, which were prepared using identical
experimental conditions. Furthermore, the local conductivity, electroactivity and electrostability have
been also examined. Analyses of the morphology, topography and roughness of the surfaces indicate
that the formation and growth of the multilayered films strongly depends on the number of layers as
well as on the chemical nature of the conducting polymer. Interestingly, AFM reflects that the formation
and growth of the ml-PEDOT/PNMPy films are significantly different from those of PEDOT and PNMPy
homopolymers. The electrical and electrochemical properties of the systems under study are fully
consistent with the proposed mechanisms. Results evidenced that multilayered systems formed by two
conducting polymers are more advantageous from a technological point of view than the corresponding
copolymers. |