| Poly[(1,3-dihydro-4,7-dimethyl-1,3-dioxo-2H-isoindole-5,2-diyl)-1,3-propanediyl(1,1,3,3-tetramethyl-1,3-disiloxanediyl)-1,3-propanediyl(1,3-dihydro-4,7-dimethyl-1,3-dioxo-2H-isoindole-2,5-diyl)carbonylimino-1,3-propanediyl(1,1,3,3-tetramethyl-1,3-disiloxa |
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