| Reactive surface coatings based on polysilsesquioxanes: defined adjustment of surface wettability. | |
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MedLine Citation:
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PMID: 19371043 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We have investigated a generally applicable protocol for a substrate-independent reactive polymer coating that offers interesting possibilities for further molecular tailoring via simple wet chemical derivatization reactions. Poly(methylsilsesquioxane)-poly(pentafluorophenyl acrylate) hybrid polymers have been synthesized by RAFT polymerization, and stable reactive surface coatings have been prepared by spin-coating on the following substrates: Si, glass, gold, PMMA, PDMS, and steel. These coatings have been used for a defined adjustment of surface wettability by surface-analogous reaction with various amines (e.g., glutamic acid to obtain hydrophilic surfaces (Theta(a) = 18 degrees) or perfluorinated amines to obtain hydrophobic surfaces (Theta(a) = 138 degrees)). Besides the successful covalent attachment of small molecules and polymers, amino-functionalized nanoparticles could also be deposited on the surface, resulting in nanostructured coatings, thereby expanding the accessible contact angle of hydrophobic surfaces further to Theta(a) = 152 degrees. The surface-analogous conversion of the reactive coating with isopropyl amine produced in situ temperature-responsive coatings. Using the presented simple, generally applicable protocol for substrate-independent reactive polymer coatings, the contact angle of water could be switched reversibly by almost 60 degrees. |
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Authors:
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Daniel Kessler; Patrick Theato |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Langmuir : the ACS journal of surfaces and colloids Volume: 25 ISSN: 1520-5827 ISO Abbreviation: Langmuir Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2010-06-21 Completed Date: 2010-09-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882736 Medline TA: Langmuir Country: United States |
Other Details:
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Languages: eng Pagination: 14200-6 Citation Subset: - |
Affiliation:
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Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, 55099 Mainz, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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