Nanostructured polymer blends foamed materials

Properties and applications of nanoporous foamed materials obtained from nanostructured polymer blends... 

Nanostructured solid polymer blends for the potential production of micro- and nanoporous materials by a foaming process theoretical features, precursors, and morphologies... 

Next, it was demonstrated that the CNT presents limitations when the nuclei size falls into the nanometric range [81]. However, the alternative nucleation models present a significant complexity therefore CNT is commonly used to provide a qualitative estimation of nncleation in nanoporous foams the feamres proposed by Spitael et al. currently are stiU widely accepted. In addition, it is well known that nanoporous polymer requires nuclei densities greater than 10 " nuclei per cubic centimeter of the precursor materials. Therefore initial micelle densities should be higher than this value to produce nanoporous polymers from polymer blends presenting a nucellar nanostructuration, but hopefully these values can be expected even when BCP precursors are blended at low copolymer concentration (eg, <10 wt%). 

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