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RAPID PERMANENT HYDROPHILIC AND HYDROPHOBIC PATTERNING OF POLYMER SURFACES VIA OFF-STOICHIOMETRY THIOL-ENE (OSTE) PHOTOGRAFTING
KTH, School of Electrical Engineering (EES), Microsystem Technology (Changed name 20121201).
KTH, School of Electrical Engineering (EES), Microsystem Technology (Changed name 20121201).
KTH, School of Electrical Engineering (EES), Microsystem Technology (Changed name 20121201).
KTH, School of Electrical Engineering (EES), Microsystem Technology (Changed name 20121201).ORCID iD: 0000-0001-8248-6670
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2012 (English)In: Proceedings Micro Total Analysis Systems (muTAS) 2012, 2012, 677-679 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this work we have developed a simple and robust method to permanently pattern alternating hydrophobic and hydrophilic surfaces in off-stoichiometry thiol-ene (OSTE) polymer microchannels. By being able to tune the number of unreacted thiol surface groups of the OSTE Thiol polymers and by taking advantage of spatially photo-controlled surface grafting of methacrylate monomers we achieve defined areas with contact angles from 20° to 115° within one single channel. The surface modification remains stable after storage in air (>2 months) or water (>24h).

Place, publisher, year, edition, pages
2012. 677-679 p.
Keyword [en]
Rapid prototyping, surface modification, off-stoichiometry thiol-enes, OSTE, contact angles
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-105204Scopus ID: 2-s2.0-84898979876OAI: oai:DiVA.org:kth-105204DiVA: diva2:570338
Conference
Micro Total Analysis Systems (muTAS) 2012, The 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences October 28 - November 1, 2012,Ginowan City Okinawa, Japan
Note

QC 20121120

Available from: 2012-11-20 Created: 2012-11-19 Last updated: 2017-05-17Bibliographically approved

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hydrophilic OSTE(1737 kB)378 downloads
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van der Wijngaart, WouterHaraldsson, Tommy

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Carlborg, FredrikMoraga, FrancescaSaharil, Farizahvan der Wijngaart, WouterHaraldsson, Tommy
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