In-depth probing of thermally-driven phase separation behavior of lamella-forming PS-b-PMMA films by infrared nanoscopy

Jiho Kim,Wooseop Lee, Hyeji Kim,Du Yeol Ryu,Hyungju Ahn,Boknam Chae

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy（2022）

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摘要

•Infrared nanoscopy: Combining topographic and chemical information of polymer nanostructures.•Visualization of chemical distribution over nanodomains in block copolymer thin films.•Enhancement of phase separation of PS-b-PMMA thin films by thermal treatment.

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关键词

Block copolymer,PS-b-PMMA,Phase separation,Infrared nanoscopy,s-SNOM

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