Process for capping polyphenylene oxide

Details Process for capping polyphenylene oxide Process for capping polyphenylene oxide

1975-09-15

1977-09-13

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 49, C08G 6544, C08G 6548

Patent

active

040481433

ABSTRACT:
A process is disclosed which provides for the reduction of the occurrence of oxidative and/or thermal degradation of polyphenylene oxides by contacting the oxides with a capping agent in the presence of a water soluble base, a catalytic phase transfer agent, and, optionally, an effective organic phase reducing agent. The resulting capped polyphenylene oxides can be used to prepare improved articles of manufacture using conventional techniques such as molding, vacuum forming, extrusion, etc.

REFERENCES:
patent: 3375228 (1968-03-01), Holoch et al.
patent: 3392146 (1968-07-01), Anderson et al.
patent: 3402143 (1968-09-01), Hay
patent: 3424722 (1969-01-01), Jerussi et al.
patent: 3535281 (1970-10-01), Hay
patent: 3573254 (1971-03-01), Factor
Starks, J. Am. Chem. Soc. 93, 195-199 (1971).

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