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Structured Polymer ...
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Steenackers, Marin
(författare)
Structured Polymer Brushes on Silicon Carbide
- Artikel/kapitelEngelska2010
Förlag, utgivningsår, omfång ...
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2009-12-16
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American Chemical Society,2010
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:uu-120757
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-120757URI
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https://doi.org/10.1021/cm903051jDOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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A straightforward method is presented for the preparation of homogeneous as well as structured polymer brushes on SiC substrates. The self-initiated photografting and photopolymerization (SIPGP) of styrene and N,N-dimethylaminoethyl methacrylate (MAEMA) allows the preparation of polymer brush layers directly and selectively onto C—OH terminated (000) 6H-SiC surfaces in a single step reaction. In contrast, the analogous reaction on Si—OH terminated (0001) 6H-SiC does not occur. The reactivity contrast between Si—OH and C—OH terminated crystal faces for SIPGP was studied using the density functional theory method which showed a higher SiO—H bond dissociation energy for hydrogen abstraction on the Si-polar relative to the C-polar crystal face. Furthermore, structured polymer brushes on the submicrometer scale could be prepared by the carbon templating (CT) technique on Si—OH terminated (0001) 6H-SiC surfaces. First, an ultrathin template layer was formed by electron beam induced carbon deposition (EBCD) on SiC by means of a focused electron beam. Amplification of the template by SIPGP resulted in polymer brush structures with controlled three-dimensional shapes. The effect of the applied electron dose as well as the initial lateral structure size on the brush layer morphology was investigated.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Sharp, Ian D.
(författare)
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Larsson, KarinUppsala universitet,Oorganisk kemi(Swepub:uu)karinl
(författare)
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Hutter, Naima A.
(författare)
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Stutzmann, Martin
(författare)
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Jordan, Rainer
(författare)
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Uppsala universitetOorganisk kemi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Chemistry of Materials: American Chemical Society22:1, s. 272-2780897-47561520-5002
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