Abstract
Electrical conductivity of polypropylene fibers grafted with methacrylic acid, vinyl acetate, and acrylonitrile for the samples conditioned at various relative humidities is reported. Electrical conductivity increases with the increase in graft in all three grafted polymers. The increase in conductivity of polypropylene fibers grafted with methacrylic acid is two orders of magnitude higher than control, while the increase in other cases in small. The results are explained on the basis of chemical structure of the grafted fibers. Increase in electrical conductivity with respect to methacrylic acid graft could be due to charge migration and electronic conductivity. In the case of the other two monomer-grafted PPs, increase could be predominantly due to electronic conduction.
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