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The new morphology of Polydiphenylamine in nano scale was obtained by using various surfactants as a sofl template leading to more increase in the conductivity when compare to conventional polydiphenylmine.

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ABSTRACT:This work aims to investigate the electrical conductivity sensitivity of polydiphenylamine (PDPA) pellets, films, and fibers when they are exposed to methanol vapor. PDPA was synthesized via chemical oxidative polymerization and washed with NH 4 OH solution to obtain the de-doped-PDPA (De-PDPA). De-PDPA pellets were doped with hydrochloric acid at various doping ratios. PDPA and its blends with polyethylene oxide (PEO) added at various ratios were successfully fabricated into fibers by electrospinning and cast into films. The De-PDPA pellet doped at the doping ratio of 100 has the highest electrical conducitivity sensitivity toward methanol vapor. The electrical conductivity sensitivity of the PDPA electrospun fiber is relatively lower than

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