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Characterization of Polyphenylene Oxide Anodic Films

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Gel permeation chromatography and infrared spectra have been used to characterize several poly(phenylene oxide) films formed by the anodic oxidation of aqueous phenol solutions. For the 2,6-dimethyl derivative, the molecular weight distribution extends to 10,000. Infrared spectra confirm a hesd-to-tail coupling structure. Results are also reported for films derived from 4-t-butylphenol and 2,4,6-trimethylphenol.