ABSTRACT: A new amino-containing phthalonitrile derivative 4-(4-(3, 5-diaminobenzoyl) phenoxy) phthalonitrile (DAPN) was successfully
synthesized. Its structure was identified by FT-IR and 1H-NMR. DAPN can be thermally polymerized by duration at 230°C for various times under a nitrogen atmosphere, even in the
absence of curing additives. The thermal properties of the cured products were characterized by TGA and DSC. The 5 and 10%
weight loss temperatures ranged from 442 to 446 and 504 to 505°C, respectively. Char yields (800°C) were in the range of
72.7–72.9%. DSC data showed that the melting peak of the cured products disappeared due to their thermal polymerization. The
insolubility in concentrated sulfuric acid and FT-IR of the cured products indicated the formation of cross-linked networks.
Polymer Bulletin 04/2012; 62(5):581-591. · 1.53 Impact Factor