Poly(amido methyl-benzazole)

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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528310, 528321, 528331, 528423, C08G 6900

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active

048165549

ABSTRACT:
A class of polymers comprises one or more 2-amidomethylbenzazole units, ##STR1## contained within the main polymer backbone, wherein Ar is Ar.sup.1 or Ar.sup.2, wherein Ar.sup.1 is a tetravalent aromatic nucleus having two pairs of valences, the members of each pair being situated on adjacent carbon atoms; Ar.sup.2 is a trivalent aromatic nucleus in which at least two of the valences are situated on adjacent carbon atoms; and X is --NR.sup.4 --, --O--, or --S--, where R.sup.4 is hydrogen or alkyl of 1 to 8 carbon atoms or an aryl group.

REFERENCES:
English language translation of French patent document No. 887,530.
P. E. Cassidy, "Thermally Stable Polymers", Marcel Dekker, Inc., New York, NY, 1980, Chapter 6, pp. 141-221.
C. S. Cleaver and B. C. Pratt, J. Am. Chem. Soc., 1955, 77, 1541-1543.
Ueda et al., J. Polym. Sci. Polym. Chem., 1978, 16, 155-162.
Ueda et al., J. Polym. Sci., Polym. Chem., 1975, 13, 659-677.
Habib et al., J. Prakt. Chem., 1983, 325, 685-688.
Harb et al., Heterocycles, 1986, 24, 1873-1881.

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