Abstract:
A simple method for creating self-assembled nanostructures using a single polymer system is reported. When spin-coated polystyrene thin films were irradiated with UV light and treated with toluene, unique nanostructures were observed, evolving from star-shaped networks to arrays of concentric circles. The nanostructure formation is a result of differential responses of crosslinked and oxidized products to the solvent by a combined effect of phase separation and solvent swelling. The nanostructures were observed for polymers of different molecular weights, films of different thicknesses, and on various substrates.
Citation:
Chada S, and M Yan.2008."Self-assembled nanostructures from homopolymer induced by UV and solvent exposure."Soft Matter 4:2164-2167. doi:10.1039/b807328g
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Publication year:
2008