Journal
MACROMOLECULES
Volume 43, Issue 17, Pages 6995-7000Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma101597h
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Funding
- National Science Foundation [DMR-0907369, CGE-0740108]
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Octaphenylsilsesquioxane (OPS) derivatives represent a class of high functionality building blocks with perfect three-dimensional symmetry for the construction of rigid and highly porous polymers. Copper-mediated in-situ homocoupling of an OPS derivative with eight para-disposed triple bonds yields a porous network with surface areas tip to 1000 m(2)/g. Introducing a monoalkyne capping agent to lower cross-linking density led to a similar to 200 m(2)/g increase in surface area. Exceptional thermal robustness of the silsesquioxane cage and strong covalent bonds resulting from the cross-linking process render the resulting porous networks stable to heat and water.
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