Polyquinazolines and methods for their preparation

Details Polyquinazolines and methods for their preparation Polyquinazolines and methods for their preparation

1997-06-25

1998-12-15

Truong, Duc

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

Synthetic resins

Nitrogen-containing reactant

528367, 528368, 528369, 528423, 528491, 528503, 428421, 428691, 428694PR, C08G 7300

Patent

active

058498613

ABSTRACT:
New polyquinazoline polymers are provided by reacting novel monomers. The polymers incorporate repeat units that have at least one quinazoline nucleus and at least one ether linkage at the quinazoline 2 or 4 position. The quinazoline polymers are prepared by treating a monomer which comprises a quinazolone nucleus having one activated halide group with a base in a dipolar solvent to thereby form the polyquinazoline polymer.

REFERENCES:
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patent: 4012371 (1977-03-01), Roueche et al.
patent: 5247050 (1993-09-01), Hendricks
Hendrick et al "Poly(aryl ether-phenylquinoxalines)," Macromolecules, vol. 23, No. 6, 6 Mar. 1990, pp. 1561-1568.
Mani et al, "Poly(aryl ether ketone) synthesis via competing S.sub.N AR and S.sub.RN 1 reaction: 1-Polymers derived from 1,3-bis(p-chlorobenzoyl) benzene and 1,3-bis (p fluorobenzoyl) benzene with hydroquinone and 4,4'-isopropylidene diphenol," Polymers, 1993, vol. 34, No. 1, pp. 171-181 .

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