Preparation of poly(arylene ketones) using thio- and dithiocarbo

Details Preparation of poly(arylene ketones) using thio- and dithiocarbo Preparation of poly(arylene ketones) using thio- and dithiocarbo

1981-07-08

1982-11-30

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528126, 528128, 528174, 528175, 528196, 528198, 528199, 528200, 528206, 528207, 528214, 528215, 528216, 528217, 528219, 528370, 528371, 528372, 528381, 528351, C08G 6538, C08G 6540

Patent

active

043616933

ABSTRACT:
Poly(arylene ketones) are prepared by the reaction of difunctional aromatic compounds with derivatives of thio- or dithiocarbonic acids in the presence of a superacid catalyst system. In a preferred embodiment, diphenyl ether reacts with S-methyl chlorothioformate in HF/BF.sub.3 to produce poly(p-phenyleneoxy-p-phenylene carbonyl), i.e. a polymer having the repeating unit ##STR1##

REFERENCES:
patent: 3065205 (1962-11-01), Bonner, Jr.
patent: 3093537 (1963-06-01), Tilles
patent: 3219679 (1965-11-01), Berezin et al.
patent: 3219680 (1965-11-01), Olah
patent: 3441538 (1969-04-01), Marks
patent: 3953400 (1976-04-01), Dahl
patent: 4111908 (1978-09-01), Dahl
patent: 4229564 (1980-10-01), Dahl
patent: 4247682 (1981-01-01), Dahl
"Carbonium Ions"-vol. 1, pp. 81-95-Edited by George A. Olah.

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