http://www.cnr.it/ontology/cnr/individuo/prodotto/ID48046
Electrostatically self-assemled multilayers of novel symmetrical rigid-rod polyanionic polytiophenes on ITO/glass and gold electrodes (Articolo in rivista)
- Type
- Label
- Electrostatically self-assemled multilayers of novel symmetrical rigid-rod polyanionic polytiophenes on ITO/glass and gold electrodes (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/cm0351644 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Zotti G.; Zecchin S.; Schiavon G.; Vercelli B.; Berlin A.; Porzio W. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://pubs.acs.org (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR-IENI; CNR-ISTM; CNR-ISMAC (literal)
- Titolo
- Electrostatically self-assemled multilayers of novel symmetrical rigid-rod polyanionic polytiophenes on ITO/glass and gold electrodes (literal)
- Abstract
- Anodic coupling of 4,4-bis-butanesulfonate cyclopentadithiophene occurs in acetonitrile
after the addition of 1:1 HClO4 to yield water-soluble polyanionic poly(1). 4,4-Bis-hexyltrimethylammonium
cyclopentadithiophene is polymerized in acetonitrile to acetonitrile-soluble
polycationic poly(2) which is converted to the water-soluble hydroxide form by anion exchange.
These novel water-soluble polythiophenes, characterized by a rigid-rod symmetrical shape
of the chain, display a high conjugation length (ìmax ) 560-575 nm) and a good solubility
in water (>10 gL-1). MALDI and UV-vis spectroscopy assign these polymers a degree of
polymerization of 5-6. The polymers form stable monolayers (storing a redox charge of 10
íC cm-2) on ITO/glass and gold electrodes. Subsequent electrostatic self-assembly (ESA) of
poly(1) and poly(2), both between them and each with a non-electroactive polycation or
polyanion, proceeds with a linear growth rate monitored by cyclic voltammetry (10 íC cm-2
bilayer-1) and UV-vis spectroscopy. No effect of ionic strength was observed in contrast
with ESA of conventional polyionic polymers. IRRAS and XRD analysis of the multilayers
agree with a regular disposition of the polythiophene chains in the layers. (literal)
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