Poly(amide-benzazoles)

Details Poly(amide-benzazoles) Poly(amide-benzazoles)

C - Chemistry, Metallurgy

08

G

402/223

C08G 69/00 (2006.01) C08G 73/06 (2006.01) C08G 73/18 (2006.01) C08G 73/22 (2006.01) C08G 75/32 (2006.01)

Patent

CA 1315039

ABSTRACT OF THE DISCLOSURES A class of polymers comprises one or more 2-amidomethylbenzazole units, Image contained within the main polymer backbone, wherein Ar is Ar1 or Ar2, wherein Ar1 is a tetravalent aromatic nucleus having two pairs of valences, the members of each pair being situated on adjacent carbon atoms; Ar2 is a trivalent aromatic nucleus in which at least two of the valences are situated on adjacent carbon atoms; and X is -NR4-, -O-, or -S-, where R4 is hydrogen or alkyl of 1 to 8 carbon atoms or an aryl group.

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