Abstract
Rodlike “POSS–bottlebrush block copolymers” (POSSBBCPs) containing crystalline polyhedral oligomeric silsesquioxane (POSS) pendants in A block and amorphous polymeric grafts in B block were utilized to create one-dimensional (1D) photonic crystals (PCs). 3-(12-(cis-5-Norbornene-exo-2,3-dicarboximido)dodecanoylamino)propylheptaisobutyl POSS (NB-A16-POSS, MA) and exo-5-norbornene-2-carbonyl-end poly(benzyl methacrylate) (NBPBzMA, MB) were employed in sequential ring-opening metathesis polymerization to afford poly[3-(12-(cis-5-norbornene-exo-2,3-dicarboximido)dodecanoylamino)propylheptaisobutyl POSS]-block-poly(exo-5-norbornene-2-carbonylate-graft-benzyl methacrylate)s, P(NB-A16-POSS)-b-P(NB-g-BzMA)s, with well-modulated block compositions (fA = 34, 50, and 67 wt %) and overall degrees of polymerization (DP = 323–939). The P(NB-A16-POSS)-b-P(NB-g-BzMA)s hierarchically self-assembled to form highly ordered 1D PC films with periodic lamellar arrays that can reflect visible light with particular wavelengths. T...
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