Production of p-phenylene sulfide polymers

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 79, C08F 2800

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active

040961320

ABSTRACT:
A method is provided for producing a p-phenylene sulfide polymer by contacting at least one p-dihalobenzene, at least one alkali metal sulfide, at least one alkali metal carboxylate, at least one organic amide and at least one alkali metal hydroxide to form a composition at polymerization conditions. The use of an alkali metal hydroxide in addition to the other compounds used in the reaction mixture results in p-phenylene sulfide polymers of higher molecular weight than produced without the alkali metal hydroxide, as evidenced by lower melt flow of the polymer than produced by the compared methods.

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patent: 3607843 (1971-09-01), Vidaurri, Jr.
patent: 3725362 (1973-04-01), Walker
patent: 3763124 (1973-10-01), Edmonds, Jr.
patent: 3786035 (1974-01-01), Scoggin
patent: 3919177 (1975-11-01), Campbell

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