Abstract
AbstractA novel, high‐temperature, naphthyl‐based phthalonitrile polymer is prepared. The phthalonitrile monomer, namely, 2,7‐bis(3,4‐dicyanophenoxy) naphthalene (BDCN), is synthesized from the reaction of 2,7‐dihydroxynaphthalene (DHN) with 4‐nitrophthalonitrile (NPN), and its curing behavior with 1,3‐bis(4‐aminophenoxy) benzene (APB) is investigated by DSC. The high‐temperature BDCN polymer is prepared via a two‐step approach: the preparation of the BDCN prepolymer and the post‐cure of the BDCN prepolymer at elevated temperatures. The BDCN polymer might form a polypyrrole structure as revealed by FTIR spectroscopy, and exhibits a high storage modulus, high glass‐transition temperature, and outstanding thermal stability, along with long‐term oxidative resistance.
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