A facile self-assembled polymerization method has been used to form pyrrole to an ultralight three-dimensional (3D) polypyrrole (PPy) aerogel. It exhibits an effective electromagnetic absorption (EA) bandwidth (deeper than −10 dB), which was characterized as 6.2 GHz when the filler loading is only 7 wt. % in paraffin based composite. This 3D-PPy aerogel can be considered as a light weight, low adjunction, thin thickness, and high performance EA material.
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See supplementary material at http://dx.doi.org/10.1063/1.4921180 for experimental section (S1), key data of typical PPy based nanocomposites for EA materials (Table S1), key data of typical ICPs based nanocomposites for EA materials (Table S2). In S1, we give the reagent (S1.1) and the instrument (S1.2) which used during the experimental section. In Table S1, we compare the EA performance between 3D-PPy and other PPy based nanocomposites. In Table S2, we compare the EA performance between 3D-PPy and ICPs based nanocomposites.
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