prov:value
| - polymers containing the group -CONR- (where R may be hydrogen or an organic moiety) and including the alkyl, alkylaryl and aryl amides (aramides), polyamide hydrazides, polybenzimidazoles, polyimides, poly-2,4-imidazolidinediones, (poly hydantoins), polypyrrones, polybenzimidazolones, polyureas, polyurethanes (polycarbamates), polyether ureas, polyether amides, polyether hydantoins, and the like.
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