| Poly[[1,3-dihydro-1,3-dioxo-7-(trifluoromethoxy)-2H-isoindole-2,5-diyl][(trifluoromethoxy)-1,4-phenylene][1,3-dihydro-1,3-dioxo-7-(trifluoromethoxy)-2H-isoindole-5,2-diyl][2-(methylsulfinyl)-1,4-phenylene][2,2,2-trifluoro-1-(trifluoromethyl)ethylidene][3- |
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