Method of producing aromatic heterocyclic copolymer and molecula

Details Method of producing aromatic heterocyclic copolymer and molecula Method of producing aromatic heterocyclic copolymer and molecula

1992-05-13

1993-09-28

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

4284111, 4284735, 4284744, 525420, 525432, 525436, 528183, 528340, 528348, C08G 1532

Patent

active

052487598

ABSTRACT:
The aromatic heterocyclic copolymer is produced by (a) reacting (i) an aromatic diaminodithiol compound, hydrogen atoms of thiol groups of which compound are substituted with substituted or unsubstituted alkyl groups, with (ii) an aromatic diamino compound and (iii) a dicarboxylic acid derivative in an organic solvent, to produce a precopolymer; and (b) heating the precopolymer to cause a thiazole ring closure reaction. This aromatic heterocyclic copolymer is contained as a reinforcing polymer in a molecular composite material.

REFERENCES:
patent: 4937321 (1990-06-01), Kuder

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