Cover Picture: Precisely Tunable Photonic Crystals From Rapidly Self-Assembling Brush Block Copolymer Blends (Angew. Chem. Int. Ed. 45/2012)



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Molecular brush block copolymers rapidly self-assemble to photonic crystals that can reflect light from the UV, across the visible, and into the near-IR region of the spectrum. In their Communication on page 11246 ff., R. H. Grubbs et al. demonstrate that the blending of two different molecular weight brush block copolymers can predictably modulate the sizes of the polymer domains, enabling facile precision tuning of these photonic-band-gap materials.