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Electrophysical Properties of Iodine Doped Acetylene/Ethylene Copolymers

Published online by Cambridge University Press:  16 February 2011

A. N. Aleshin ,
E. G. Guk ,
V. A. Marikhin ,
L. P. Myasnikova  and
D. G. Belov
A. N. Aleshin
Affiliation:
A.F.Ioffe Physico-Technical Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
E. G. Guk
Affiliation:
A.F.Ioffe Physico-Technical Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
V. A. Marikhin
Affiliation:
A.F.Ioffe Physico-Technical Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
L. P. Myasnikova
Affiliation:
A.F.Ioffe Physico-Technical Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
D. G. Belov
Affiliation:
Institute of Chemical Physics, Chemogolovka, 142432, Russia
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Abstract

A new oxydative-resistant, fusible and processible ethylene/acetylene copolymer has been synthesized. The content of rigid (acetylene) and flexible (ethylene) fragments has been widely varied. The structure of the nascent powders and the films compressed at room temperature have been investigated by SEM and WAXS. DSC has been used for studying the thermal properties. DC conductivity of the iodine doped samples has been measured as a function of temperature. It is shown that the doping leads to arising conductivity in the samples even at 10 Mol % acetylene fragments in copolymer. The conductivity up to 10−3 S/cm is reached for the samples with acetylene fragment concentration about 20 Mol %. It is found that a charge carrier transport in investigated copolymers is caused by doped polyacetylene fragments and described by the hopping Mechanism.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 273
Copyright
Copyright © Materials Research Society 1994

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References

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