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Nano-scale brushes: How to build a smart surface coating

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 نشر من قبل Jens-Uwe Sommer
 تاريخ النشر 2008
  مجال البحث فيزياء
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Via computer simulations, we demonstrate how a densely grafted layer of polymers, a {it brush}, could be turned into an efficient switch through chemical modification of some of its end-monomers. In this way, a surface coating with reversibly switchable properties can be constructed. We analyze the fundamental physical principle behind its function, a recently discovered surface instability, and demonstrate that the combination of a high grafting density, an inflated end-group size and a high degree of monodispersity are conditions for an optimal functionality of the switch.



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