Spherical Packing Phases of Block Copolymers

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• An-Chang Shi (McMaster University)
• Tuesday 22 August 2023, 12:00-12:30
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PMVW01 - 5th International Conference on Packing Problems: Packing and patterns in granular mechanics

Recent experimental and theoretical studies have revealed that complex spherical packing phases, such as the Frank-Kasper phases and quasicrystals, could form from block copolymers as stable or metastable phases. We have examined the emergence of complex spherical packing phases in block copolymer systems using the self-consistent field theory. Our study reveals that one key mechanism of forming complex spherical phases from block copolymers is the conformational asymmetry of the blocks. Furthermore, we predicted that the segregation of different polymeric species in block copolymer blends provides another mechanism to stabilize spherical packing phases with very different sized-spherical domains. Lessons learned from the study of block copolymers provide insights to the understanding of self-assembly of various soft matter.

This talk is part of the Isaac Newton Institute Seminar Series series.

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