| Poly[(1,3-dihydro-1,3-dioxo-2H-isoindole-2,5-diyl)[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene](1,3-dihydro-1,3-dioxo-2H-isoindole-5,2-diyl)-1,4-phenylenemethylene-1,4-phenyleneimino(3,6-dioxo-1,4-cyclohexadiene-1,4-diyl)imino-1,4-phenylenemethylene-1,4 |
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