ISSN:
0025-116X
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
Poly(p-phenylene), poly(2,6-naphthylene), poly(2,7-naphthylene), poly(1,5-naphthylene), and poly(1,4-naphthylene) were prepared by nickel-catalyzed polycondensation of Grignard reagents from the corresponding dibromides. The polymers were annealed in vacuo. Doping with SbF5 markedly increase the conductivity of the polymers. Annealed poly(2,6-naphthylene) is the most conductive among the four isomers after SbF5 doping. The conductivity of doped poly(2,6-naphthylene) and poly(p-phenylene) is about 10-1 S · cm-1. Annealed poly(p-phenylene) shows a broad single line ESR signal which changes to a narrow single line upon doping. Superposition of the two signals is observed at the initial stage of doping. Simultaneous conductivity and ESR measurements indicate that the narrow signal is closely related to conductivity.
Zusätzliches Material:
5 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/macp.1983.021841106
Permalink