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- W120212212 abstract "The electrical conductivity and optical absorption spectra of halogen doped PAN have been investigated. When films of PAN previously heated in vacuum to 280/sup 0/C are exposed to bromine or iodine vapor the conductivity rises suddenly. The conductivity is reduced by pumping off the vapor, but upon subsequent reheating the conductivity increases dramatically, with a transition occurring at about 270/sup 0/C. Undoped samples were previously reported to undergo a similar transition above 390/sup 0/C. All samples obey sigma ..cap alpha.. T/sup -1/4/ behavior, suggesting 3-dimensional variable range hopping as the conduction mechanism. The optical and infrared absorption spectra of doped PAN are compared to those previously reported for the undoped material. The stability of doped PAN in air is also discussed. 7 figures." @default.
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- W120212212 date "1982-01-01" @default.
- W120212212 modified "2023-09-27" @default.
- W120212212 title "Electrical conductivity of doped polyacrylonitrile (PAN). [Halogen doped polyacrylonitrile]" @default.
- W120212212 hasPublicationYear "1982" @default.
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