Electrical conductivity of iodine doped poly(phthalocyaninatosiloxane)/PPTA blend fibers

Xiao Zhou, J. W. Lyding, Tobin J Marks, S. H. Carr

Research output: Contribution to journalArticle

Abstract

Poly(phthalocyaninatosiloxane), [Si(Pc)O]n, with the number average degree of polymerization of about 130 was prepared by heating its monomer Si(Pc) (OH)2, in solid state at 420°C for 42 hrs at 10-3 torr dynamic vacuum. The [Si(Pc)O]n powder was iodine doped with I2-benzene solution for 48 hrs. Pure iodine doped poly(phthalocyaninatosiloxane), {[Si(Pc)O]Iy}n, fibers and {[Si(Pc)O]Iy}n/poly(p-phenylene terephthalamide) blend fibers were wet-spun with dry nitrogen-sealed Teflon lined device. D.C. electrical conductivity of the fibers was measured by the four-probe method with an automated charge transport measurement system from 80K to room temperature. It was found that the dependence of conductivity, σ, on temperature, T, could fit a group of thermal fluctuation-induced tunneling (TFIT) equations, and that the dependence of conductivity on volume fraction, φ, of the iodine doped {[Si(Pc)O]Iy}n could fit a group of modified percolation equations.

Original languageEnglish
Pages (from-to)208-215
Number of pages8
JournalChinese Journal of Polymer Science (English Edition)
Volume6
Issue number3
Publication statusPublished - 1988

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ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

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