期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 214, 期 3, 页码 361-369出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201200492
关键词
dynamic mechanical analysis; high glass-transition temperature; phthalonitrile polymer; thermal stability; water uptake
资金
- National Natural Science Foundation of China [51073049, 21001039]
- Major State Basic Research Development Program of China (973 Program) [2011CB612301]
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.
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