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Commercialization of Noryl Resins

ALLAN S. HAY, General Electric Company, Research Development Center, PO Box 8, Schenectady, NY [Pg.209]

The oxidation of 2,6-dimethylphenol in solution, at room temperature, with oxygen in the presence of an amine complex of a copper salt as catalyst yields a high molecular weight linear polyphenylene oxide as product. [Pg.209]

When the substituents are bulky groups, e.g., t-butyl, the only product is the diphenoquinone. PPOTM resin, the polymer obtained when the substituents are methyl groups, can be molded or cast into tough products however the polymer is subject to oxidative degradation at elevated temperatures. [Pg.209]

PPO is completely miscible with polystyrene and blends of the two products have glass temperatures between those of the two polymers. This result led to the commercialization of NORYL resins, one of the class of engineering thermoplastics. The discoveries which led to the commercial product as well as the scope of the oxidative coupling reaction are the subject of this paper. [Pg.209]

In 1956 we became interested in a very simple synthesis of azobenzene which involved the catalyst oxidation of aniline that had recently been described by Terent ev and Mogilyanskii in a Russian journal.  [Pg.209]


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