Stabilized polyphenylene sulfide and method for producing same

Details Stabilized polyphenylene sulfide and method for producing same Stabilized polyphenylene sulfide and method for producing same

1983-07-01

1984-12-04

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528388, C08F28300

Patent

active

044865783

ABSTRACT:
A stabilized polyphenylene sulfide is provided which comprises a recurring unit ##STR1## wherein the average n between foreign units is greater than about 5, and about 0.05 to 10 mole % per phenylene sulfide unit of an aromatic constituent chemically bonded with said polyphenylene sulfide chain, said aromatic constituent containing an electron attractive group selected from the group consisting of --SO.sub.2 --, --CO--, --NO.sub.2, --SO.sub.3 R, --COOR, wherein R is H, lower aliphatic hydrocarbon groups, aromatic hydrocarbon groups or alkaline metals, and --CONH--, and said stabilized polyphenylene sulfide has a melting point in the range of about 250.degree. C. to about 350.degree. C. Also provided is a method for preparing stabilized polyphenylene sulfide comprising preparing a polyphenylene sulfide consisting mainly of a recurring unit ##STR2## wherein the degree of polymerization of said recurring unit is greater than about 20, and reacting said polyphenylene sulfide with about 0.05 to about 20 mole % per said phenylene sulfide unit of a halogenated aromatic compound having an electron attractive group.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds, Jr. et al.
patent: 3919177 (1975-11-01), Campbell
patent: 4025496 (1977-05-01), Anderson et al.
patent: 4125525 (1978-11-01), Campbell
patent: 4282347 (1981-08-01), Tieszen et al.
patent: 4286018 (1981-08-01), Asakura et al.
patent: 4301274 (1981-11-01), Campbell

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