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Dispersion polymerization of acrylamide at 40 o C in t-butyl alcohol-water media of varying composition (50 to 90 vol% alcohol) using a partial isopropyl ester of poly(vinyl methyl ether-alt-maleic anhydride) as the stabilizer has been studied. The isopropyl ester derivative proves to be a better stabilizer than its precursor polymer. However, the particles were polydisperse in size. The number...
Oxidative dispersion polymerization of pyrrole using ethylhydroxyethylcellulose stabilizer in water or aqueous alcohol medium yields stable dispersions of submicrometre-sized conducting spherical polypyrrole particles. Transmission electron micrograph images of the particles from the original dispersion distinguish two kinds of particles: one very small, 20 nm in diameter, and the other eight...
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