Abstract
AbstractSimultaneous chemical copolymerization and oxidation of pyrrole and N‐methylpyrrole by bromine an iodine has been carried out. The composition of the copolymes can be effectvely controlled by varying the monomer feed ratio. From elemental analysis the copolymer composition and the monomer reactivity ratios have been determined. As the copolymer composition changes, the IR absorption spectra show changes in the intensity of certain bands. In bromineinduced polymerization, the electrical conductivity, the electrical conductivity, thermal stability, and bromine content of the copolymer complex decrease with increase in N‐mthylpyrrole fraction. X‐ray photoelectron spectroscopy data suggest that a fixed fraction of bromine is incroporated as covalent bromide in the copolymer complex. When iodine is used the halogen content do not show substantial differences among the copolymers but the electricdal conductivity and thermal stability of the copolymers also decrease with increase in N‐methylpyrrole fraction.
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