Aromatic polyethers containing azo groups

Details Aromatic polyethers containing azo groups Aromatic polyethers containing azo groups

1990-05-31

1991-11-12

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, C08G 7500, C08G 802, C08G 1400

Patent

active

050649299

ABSTRACT:
A dihalobenzenoid compound is reacted with a dihydric phenol containing an azo group in the presence of a base, an organic solvent and an azeotrope former. Dihydric phenols which do not contain azo groups may also be included in the reaction mixture. This reaction is generally carried out at a temperature of from about 20.degree. to about 250.degree. C. under an inert atmosphere. The polyether obtained is represented by the formula

REFERENCES:
patent: 3264536 (1966-08-01), Robinson et al.
patent: 4105636 (1978-08-01), Taylor
patent: 4108837 (1978-08-01), Johnson et al.
patent: 4175175 (1979-11-01), Johnson et al.
patent: 4786694 (1988-11-01), Clendinning et al.
Hall et al, Macromolecules, 1987, vol. 20, pp. 2041-2044.
Riordan et al, "Polymer", 1979, vol. 20, p. 196.
Bualek et al, Makromol. Chem., 1988, vol. 189, pp. 797-804.

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