Patterning of Wrinkled Polymer Surfaces by Single-Step Electron Irradiation

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A novel yet simple approach to fabricate and pattern wrinkled surfaces on polymers is presented. Only by irradiating an electron beam onto a polymer, wrinkles are created on the polymer surface. Electron irradiation produces a bilayer polymeric structure comprising a degrading upper layer and a pristine bottom layer. Electron irradiation also increases the polymer surface temperature to a point much higher than the glass-transition temperature of the upper layer, leading to drastic thermal expansion of the upper layer. As a result, significant compressive force is applied to form surface wrinkles. The mechanism behind the wrinkle formation and the effects of electron irradiation parameters on the wrinkle characteristics are discussed. In addition, by this electron irradiation approach, a patterned wrinkle structure is uniquely prepared.
Publisher
AMER CHEMICAL SOC
Issue Date
2018-05
Language
English
Article Type
Article
Citation

LANGMUIR, v.34, no.18, pp.5290 - 5296

ISSN
0743-7463
DOI
10.1021/acs.langmuir.8b00403
URI
http://hdl.handle.net/10203/242421
Appears in Collection
NE-Journal Papers(저널논문)
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