Infrared spectroscopic determination of the kinetic data of the polymerization of aliphatic bismaleimides

摘要

AbstractBismaleimides polymerize at elevated temperatures, forming highly crosslinked, high temperature‐resistant polymers. From the decrease of the ν(HC) band at 3100 cm−1, rate constants and activation energies of the polymerization of four homologous aliphatic bismaleimides were determined. Up to a 20–30 conversion, the polymerization is pseudofirst order. An almost linear correlation between the activation energy and the number of methylene groups in the sequence between the maleimide residues