| Poly[(2,4,5-trioxo-1,3-imidazolidinediyl)-1,4-phenylene(4-chloro-2,5-dihydro-2,5-dioxo-1H-pyrrole-1,3-diyl)oxy-1,4-phenylene[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]-1,4-phenyleneoxy(4-chloro-2,5-dihydro-2,5-dioxo-1H-pyrrole-3,1-diyl)-1,4-phenylene] |
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