YUAN Wei, SHI Tiejun, XU Guomei, et al. Fabrication and characterization of a novel bismaleimide-benzoxazine resin[J]. CIESC Journal, 2016, (5): 2131-2137.
YUAN Wei, SHI Tiejun, XU Guomei, et al. Fabrication and characterization of a novel bismaleimide-benzoxazine resin[J]. CIESC Journal, 2016, (5): 2131-2137.DOI: 10.11949/j.issn.0438-1157.20151496.
A novel bismaleimide-benzoxazine resin(abbreviated as HPM-BOZ)was synthesized by three steps. Firstly
N-p-hydroxylphenylmaleimide(HPM)was prepared from maleic anhydride and p-aminophenol. Secondly
HPM
4
4-2 amino diphenyl ether (ODA) and paraformaldehyde were used as raw materials to prepare HPM-BOZ with Mannich reaction. Thirdly
a novel bismaleimide-benzoxazine resin was fabricated by a specific curing process. The chemical structure of HPM and HPM-BOZ was characterized by FTIR
1H NMR and 13C NMR. Section fracture surface of the resin was analyzed by SEM. The curing behavior of HPM-BOZ was characterized by DSC with two peaks at about 235℃ and 266℃ appeared during its curing
respectively. TGA curves demonstrated that HPM-BOZ had excellent thermal stabilities under the condition of nitrogen
which began to decompose at 410℃ with 5% mass loss temperature of 438℃ and obtained 60.2% char yield at 800℃.