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Synthesis and Properties of a High‐Temperature Naphthyl‐Based Phthalonitrile Polymer
Author(s) -
Yu XiaoYan,
Naito Kimiyoshi,
Kang Chao,
Qu XiongWei,
Zhang QingXin
Publication year - 2013
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201200492
Subject(s) - phthalonitrile , prepolymer , polymer , polymer chemistry , thermal stability , monomer , curing (chemistry) , materials science , glass transition , fourier transform infrared spectroscopy , thermosetting polymer , chemical engineering , chemistry , composite material , organic chemistry , polyurethane , phthalocyanine , nanotechnology , engineering
A 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.