Process for oxidizing polyarylene compounds containing thioether

Details Process for oxidizing polyarylene compounds containing thioether Process for oxidizing polyarylene compounds containing thioether

1994-05-03

1996-03-05

Dodson, Shelley A.

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

Synthetic resins

From sulfur-containing reactant

528388, 528480, 528486, 528489, C08G 7500, C08F 600

Patent

active

054969166

ABSTRACT:
Process for preparing a polyarylene sulfone by oxidizing a polyarylene thioether in acetic acid with hydrogen peroxide, the reaction being carried out in the presence of catalytic amounts of concentrated sulfuric acid and/or with the addition of equilibrium per-acids. The reaction products are suitable for producing molded parts having high temperature resistance and high resistance to chemicals.

REFERENCES:
patent: 3948865 (1976-04-01), Brady et al.
patent: 4563509 (1986-01-01), Liang
Chemical Abstracts, vol. 80, No. 24, Jun. 17, 1974, abstract No. 134087u, p. 19.
Kobunshi Ronbunshu (Japanese Polymer Science and Technology) vol. 37, Nr. 6, 1980, pp. 445-448.
Gabler et al, Chimia 28 (1974) p. 567.

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