Polyimide aerogels cross-linked through amine functionalized polyoligomeric silsesquioxane.

  title={Polyimide aerogels cross-linked through amine functionalized polyoligomeric silsesquioxane.},
  author={Haiquan Guo and Mary Ann B Meador and Linda S. McCorkle and Derek J. Quade and Jiao Guo and Bart C Hamilton and Mukerrem Cakmak and Guilherme Sprowl},
  journal={ACS applied materials & interfaces},
  volume={3 2},
We report the first synthesis of polyimide aerogels cross-linked through a polyhedral oligomeric silsesquioxane, octa(aminophenyl)silsesquioxane (OAPS). Gels formed from polyamic acid solutions of 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA), bisaniline-p-xylidene (BAX) and OAPS were chemically imidized and dried using supercritical CO(2) extraction to give aerogels having density around 0.1 g/cm(3). The aerogels are greater than 90 % porous, have high surface areas (230 to 280 m(2)/g… CONTINUE READING


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