Preparation of aromatic heterocyclic polymers

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

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528183, 528185, 528207, 528208, 528286, 528289, 528290, 528291, 528336, 528337, C08G 6306, C08G 6944, C08G 6368

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048473502

ABSTRACT:
Rapid process for the formation of heterocyclic aromatic polymers by contacting one or more appropriate multifunctional aromatic compounds, such as a diaminobenzenediol, a terephthaloyl halide and/or an aminohydroxybenzoic acid, with a sulfonic acid and a dehydrating agent.

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Ueda et al., J. Polymer Science, Part A, Polymer Chemistry, vol. 24, 1019-1026 (1986).
Ueda et al., Makromol. Chem., Rapid Commun., vol. 6, 271-274 (1985).
Ueda et al., Makromol. Chem., Rapid Commun., vol. 5, 833-836 (1984).

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