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Novel organic–inorganic nanocomposites were prepared by in situ curing of poly(amic acid) macromolecules with POSS epoxide, octa(ethylcyclohexylepoxidedimethylsiloxy) silsesquioxane (OC). Solid-state 29 Si NMR data show that properties of the interphase can be varied systemically by adjusting the nano-tether structure of the POSS molecules. DMA studies conclude that the cross-linking densities...
Two series of nanoporous polyimide nanocomposites with well-defined tether architecture have been prepared from octa(aminophenyl)silsesquioxane. Transmission electron microscopy, solid-state 29 Si nuclear magnetic resonance, model reaction, and density measurement show that the nanostructures of the polyimide nanocomposites are well defined and can be adjusted accordingly. The polyimide nanocomposites...
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