Precisely Tunable Photonic Crystals From Rapidly Self-Assembling Brush Block Copolymer Blends


  • This work was supported by a Dow Resnick Bridge Award. R.A.W. thanks the Resnick Sustainability Institute for a graduate fellowship.


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Colorful: Enabled by their reduced capacity for chain entanglement, high-molecular-weight brush block copolymers can rapidly self-assemble to photonic crystals. The blending of two polymers of different molecular weight can predictably modulate the sizes of the polymer domains, giving rise to a facile means of precision tuning of these photonic-band-gap materials.