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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.
Ämnesord och genrebeteckningar
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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