Conduction mechanism in H-type polysiloxane-polypyrrole block copolymers

Date

2002-07-05

Author

BOZKURT, AYHAN
Parlak, Mehmet
Ercelebi, C
Toppare, Levent Kamil

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Conducting polymers of polysiloxane-polypyrrole were Synthesized by electropolymerization of the pyrrole monomer through pyrrole moieties in N-pyrrole-terminated polysiloxanes. Sodium paratoluene sulfonate was used as the electrolyte. Scanning electron microscopy (SEM) was used to determine the surface morphology of the films. The room-temperature conductivity values of the films were found to be in the range of 1.9-4.4 x 10(-4) (Omega cm)(-1), depending on the supporting electrolyte concentration. The temperature dependence of the dc conductivities of the copolymers having different dopant concentrations was investigated within the temperature range of 100-320 K. The evaluated para-meters showed that the electrical transport is dominated by variable range hopping. (C) 2002 Wiley Periodicals, Inc.

Subject Keywords

Materials Chemistry, General Chemistry, Surfaces, Coatings and Films, Polymers and Plastics

URI

https://hdl.handle.net/11511/47395

Collections

Department of Physics, Article