Regulation of dewetting and morphology evolution in spin-coated PS/PMMA blend films via graphene-based Janus nanosheets

Haibin Cai,Botuo Zheng,Deqin Zhu, Yaqiong Wu,Ruth Cardinaels,Paula Moldenaers,Zhuofan Shen,Yu Sheng, Hu Zhu,Kai Yu,Huagui Zhang

Applied Surface Science（2023）

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Abstract

•Selectively grafting PS and PHEMA to each side of GO by one-step interfacial ATRP.•Janus GO Nanosheets assembly at the PS/PMMA interface enhances the compatibility.•Induced PS migration from the top surface towards the substrate in PMMA/PS films.•Tailorable and stabilized blend morphology exploits the full height of the film.

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Key words

Graphene oxide, Janus particle, PS, PMMA blend film, Interfacial compatibilization, Pickering emulsion polymerization, Morphology regulation

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