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Self-assembled nanostructures from homopolymer induced by UV and solvent exposure
KTH, School of Chemical Science and Engineering (CHE), Chemistry.
2008 (English)In: Soft Matter, ISSN 1744-683X, Vol. 4, no 11, 2164-2167 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2008. Vol. 4, no 11, 2164-2167 p.
Keyword [en]
Combined effect, Concentric circles, Crosslinked, Differential response, Homopolymer, Nanostructure formation, Oxidized products, Polystyrene thin films, Self assembled nanostructures, SIMPLE method, Single polymers, Solvent exposure, Solvent swelling, Star-shaped networks, UV light, UV- and, Various substrates
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-77362DOI: 10.1039/b807328gISI: 000261733100007OAI: diva2:492020
QC 20120209Available from: 2012-02-07 Created: 2012-02-06 Last updated: 2012-02-09Bibliographically approved

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Yan, Mingdi
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