Process of forming phosphorus containing block polymers of polyp

Details Process of forming phosphorus containing block polymers of polyp Process of forming phosphorus containing block polymers of polyp

1977-05-26

1979-05-15

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528168, 528169, 528213, C08G 6544, C08G 6548

Patent

active

041547713

ABSTRACT:
A process of forming phosphorus containing linear, branched and/or cross-linked polymers of polyphenylene oxides is described which comprises contacting phosphoryl halides with (a) polyphenylene oxides having an average hydroxyl group per molecule value greter than zero including 1.0 or less, or (b) quinone-coupled polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 2.0 or less, including mixtures of (a) and (b).

REFERENCES:
patent: 3429850 (1969-02-01), Holoch
patent: 3635890 (1972-01-01), Takemura et al.

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