Formation of regular nanoscale undulations on a thin polymer film imprinted by a soft mold | Zendy

Kahp Y. Suh | Zendy; Soon Min Seo | Zendy; Pil J. Yoo | Zendy; Hong H. Lee | Zendy

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Formation of regular nanoscale undulations on a thin polymer film imprinted by a soft mold

Author(s) -

Kahp Y. Suh,

Soon Min Seo,

Pil J. Yoo,

Hong H. Lee

Publication year - 2006

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.2150211

Subject(s) - materials science , elastomer , polystyrene , buckling , nanoscopic scale , polymer , substrate (aquarium) , composite material , glass transition , anisotropy , thin film , mold , nanotechnology , optics , oceanography , physics , geology

We observed the formation of regular nanoscale undulations on a polystyrene film when imprinted by a soft poly(dimethylsiloxane) mold above the polymer's glass transition temperature. The shape of the wave was reminiscent of a buckling wave frequently observed for a metal film supported on an elastomeric substrate. We derived a simple theoretical model based on an anisotropic buckling of the polymer film rigidly bound to a substrate, which agrees well with the experiment.

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