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A novel benzoxazine resin (PHB-apa) with low curing temperature, high Tg and excellent thermal stability was developed. Be different from other benzoxazines, PHB-apa contains both aldehyde group and acetylene group on the phenol ring and the aniline ring, respectively. Other benzoxazine monomers contain only one aldehyde group or one acetylene group were chosen for comparison. Their chemical structures...
A series of functional polyhedral oligomer silsesquioxnae (POSS)/polyimide (PI) nanocomposites were prepared using a two-step approach, first, the octa(aminophenyl)silsesquioxane (OAPS)/NMP solution was mixed with polyamic acid (PAA) solution prepared by reacting 4,4′-diaminodiphenylmethane and 3,3′,4,4′-benzophenonetetracarboxylic dianhydride in NMP, and second, the polycondensation solution was...
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