Poly(aroy1ene-s-triazoles), thermally stable "step-ladder" polymers, were prepared by the interaction between bisamidrazones and tetracarboxylic acid dianhydrides using the multi-stage procedure and one-stage polycyclocondensation in poly(phosphoric acid) (PPA). The effect of polymer structure on solubility and thermal stability was investigated.
N‐Phenyl‐o‐phenylendiamin (I) wird bei Temperaturen von ‐10°C in Dimethylacetamid oder N‐Methylpyrrolidon mit den Dicarbonsäurechloriden (II)zu den Amiden (III) kondensiert und die Amide (III) durch thermische Dehydratisierung bei Temperaturen oberhalb 25 0°C cyclisiert.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.