Dewetting of PMMA on PS-brush substrates

Bokyung Kim; Du Yeol Ryu; Victor Pryamitsyn; Venkat Ganesan

doi:10.1021/ma9013498

Dewetting of PMMA on PS-brush substrates

Bokyung Kim, Du Yeol Ryu, Victor Pryamitsyn, Venkat Ganesan

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

We present experimental results quantifying the dewetting behavior of poly(methyl methacrylate) (PMMA) melt on polymer brushes of polystyrene (PS) molecules. Our studies indicate contact angles which display a brush molecular weight dependence similar to that expected for autophobic dewetting situation. We use strong segregation theory calculations to model the interfacial tension behavior in our observations and delineate the interplay between enthalpic and entropie effects in polymer wetting upon polymer brushes.

Original language	English
Pages (from-to)	7919-7923
Number of pages	5
Journal	Macromolecules
Volume	42
Issue number	20
DOIs	https://doi.org/10.1021/ma9013498
Publication status	Published - 2009 Oct 27

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma9013498

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abstract = "We present experimental results quantifying the dewetting behavior of poly(methyl methacrylate) (PMMA) melt on polymer brushes of polystyrene (PS) molecules. Our studies indicate contact angles which display a brush molecular weight dependence similar to that expected for autophobic dewetting situation. We use strong segregation theory calculations to model the interfacial tension behavior in our observations and delineate the interplay between enthalpic and entropie effects in polymer wetting upon polymer brushes.",

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AB - We present experimental results quantifying the dewetting behavior of poly(methyl methacrylate) (PMMA) melt on polymer brushes of polystyrene (PS) molecules. Our studies indicate contact angles which display a brush molecular weight dependence similar to that expected for autophobic dewetting situation. We use strong segregation theory calculations to model the interfacial tension behavior in our observations and delineate the interplay between enthalpic and entropie effects in polymer wetting upon polymer brushes.

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Dewetting of PMMA on PS-brush substrates

Abstract

All Science Journal Classification (ASJC) codes

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