Abstract
AbstractThe pyrolytic behavior of N‐(4‐hydroxyphenyl)phthalimide‐4‐carboxylic acid (3) and its two ester derivatives 4 and 5 was studied with the intention to synthesize the simplest aromatic poly(imide‐ester). Self‐polycondensation of 3 at elevated temperatures was not successful, but a pyrolytic ester exchange reaction of monomers 4 and 5 led to the poly(imide‐ester) 1. Though the viscosity was not high, the polymer was confirmed to exhibit excellent thermooxidative stability.
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