Process for capping quinone-coupled polyphenylene oxides

Details Process for capping quinone-coupled polyphenylene oxides Process for capping quinone-coupled polyphenylene oxides

C - Chemistry, Metallurgy

08

G

402/359, 260/489

C08G 65/44 (2006.01)

Patent

CA 1121372

ABSTRACT OF THE DISCLOSURE A process is disclosed which provides for an increase in the oxidative and/or thermal stability of quinone coupled polyphenylene oxides which comprises contacting quinone- coupled polyphenylene oxides with a capping agent in the presence of a water soluble base, and a catalytic phase transfer agent. The resulting new polymers have improved color and in combination with styrene resins provide ther- moplastic compositions having improved chemical and physical properties.

309635

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