A Pathway Toward Sub‐10 nm Surface Nanostructures Utilizing Block Copolymer Crystallization Control DOI Creative Commons
Alexander Meinhardt, Peng Qi, Christian Dávid

et al.

Advanced Materials Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Abstract It is elucidated how crystallization can be used to create lateral surface nanostructures in a size regime toward sub‐10 nm using molecular self‐assembly of short chain crystallizable block copolymers (BCP) and assist overcoming the high‐ χ barrier for microphase separation. In this work, an amphiphilic double‐crystalline polyethylene‐b‐polyethylene oxide (PE‐b‐PEO) co‐oligomer used. A mechanism short‐chain BCP combination with neutral wetting functionalized substrate that permits form edge‐on, extended crystal lamellae enhanced thermodynamic stability. situ atomic force microscopy (AFM) analysis along energy considerations suggest upon cooling from polymer melt, PE‐b‐PEO first forms segregated horizontal lamellar morphology. AFM indicates PEO triggers morphological transition involving rotation forming crystals edge‐on orientation. Exposing their side facets top minimize interfacial vertical nanostructures. Moreover, macroscopically aligned by directed (DSA), one necessity various nanotechnological applications. believed observed stable transferred other BCPs, providing potential pathways nanotechnology.

Language: Английский

A Pathway Toward Sub‐10 nm Surface Nanostructures Utilizing Block Copolymer Crystallization Control DOI Creative Commons
Alexander Meinhardt, Peng Qi, Christian Dávid

et al.

Advanced Materials Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Abstract It is elucidated how crystallization can be used to create lateral surface nanostructures in a size regime toward sub‐10 nm using molecular self‐assembly of short chain crystallizable block copolymers (BCP) and assist overcoming the high‐ χ barrier for microphase separation. In this work, an amphiphilic double‐crystalline polyethylene‐b‐polyethylene oxide (PE‐b‐PEO) co‐oligomer used. A mechanism short‐chain BCP combination with neutral wetting functionalized substrate that permits form edge‐on, extended crystal lamellae enhanced thermodynamic stability. situ atomic force microscopy (AFM) analysis along energy considerations suggest upon cooling from polymer melt, PE‐b‐PEO first forms segregated horizontal lamellar morphology. AFM indicates PEO triggers morphological transition involving rotation forming crystals edge‐on orientation. Exposing their side facets top minimize interfacial vertical nanostructures. Moreover, macroscopically aligned by directed (DSA), one necessity various nanotechnological applications. believed observed stable transferred other BCPs, providing potential pathways nanotechnology.

Language: Английский

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