Abstract
A series of aromatic polyisophthalamides containing mono-, di- and tri-nitroiminobenzoyl pendant groups were prepared from aromatic diamines and different 5-iminonitrobenzoylisophthalic acids. Interesting property relationships were revealed when evaluating the influence of the number and the position of the nitro groups in the benzoyl ring. Semi-empirical methods were used to obtain quantitative structure—property relationships (QSPR), which correlated the parameters obtained by molecular modeling with water uptake, thermal stability and 13 C and 1 H NMR chemical shifts. Moreover, by modifying the Bicerano method for aromatic polyamides, the predicted glass transition temperature (
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