RAPID PERMANENT HYDROPHILIC AND HYDROPHOBIC PATTERNING OF POLYMER SURFACES VIA OFF-STOICHIOMETRY THIOL-ENE (OSTE) PHOTOGRAFTING
2012 (English)In: Proceedings Micro Total Analysis Systems (muTAS) 2012, 2012, 677-679 p.Conference paper (Refereed)
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.
Rapid prototyping, surface modification, off-stoichiometry thiol-enes, OSTE, contact angles
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-105204ScopusID: 2-s2.0-84898979876OAI: oai:DiVA.org:kth-105204DiVA: diva2:570338
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
QC 201211202012-11-202012-11-192012-11-20Bibliographically approved