Abstract
Self-assembled poly(o-methoxyaniline) (POMA) hollow nanospheres were prepared in a solution ofpoly(methyl vinyl ether-alt-maleic acid) (PMVEA) by oxidative polymerizationusing ammonium persulfate as the oxidant. The weight ratio of PMVEA too-methoxyaniline in the solution had a significant effect on the morphology of the poly(o-methoxyaniline) nanospheres as determined by scanning electron microscopy. Thediameter of the hollow nanospheres decreased from 440 to 210 nm with an increase in thePMVEA concentration from 1% to 5%. Freeze-fracture transmission electronmicroscopy results showed the presence of spherical micelles composed of PMVEA/o-methoxyaniline prior to polymerization, which also decreased in size as morePMVEA was added to the solution, and can act as soft templates for the formationof the hollow POMA nanospheres. The POMA/PMVEA hollow nanosphereswere characterized by means of Fourier transform infrared, UV–visible, x-rayphotoelectron spectroscopy, elemental analysis and conductivity measurements.
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