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Hydrophilic Polymer Brush Layers on Stainless Steel Using Multilayered ATRP Initiator Layer
Aarhus Univ, Dept Biol & Chem Engn, Hangovej 2, DK-8200 Aarhus N, Denmark..
Aarhus Univ, Dept Biol & Chem Engn, Hangovej 2, DK-8200 Aarhus N, Denmark..
Aarhus Univ, Dept Chem, Langelandsgade 140, DK-8000 Aarhus C, Denmark..
SACHEM Japan GK, 5-6-27 Mizuhai, Higashiosaka, Osaka 5780921, Japan..
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2016 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, no 44, p. 30616-30627Article in journal (Refereed) Published
Abstract [en]

Thin polymer coatings (in tens of nanometers to a micron thick) are desired on industrial surfaces such as stainless steel. In this thickness range coatings are difficult to produce using conventional methods. In this context, surface-initiated controlled polymerization method can offer a promising tool to produce thin polymer coatings via bottom-up approach. Furthermore, the industrial surfaces are chemically heterogeneous and exhibit surface features in the form of grain boundaries and grain surfaces. Therefore, the thin coatings must be equally effective on both the grain surfaces and the grain boundary regions. This study illustrates a novel "periodic rejuvenation of surface initiation" process using surface-initiated ATRP technique to amplify the graft density of poly(oligoethylene glycol)methacrylate (POEGMA) brush layers on stainless steel 316L surface. The optimized conditions demonstrate a controlled, macroscopically homogeneous, and stable POEGMA brush layer covering both the grain surface and the grain boundary region. Various relevant parameters-surface cleaning methods, controllability of thickness, graft density, homogeneity and stability-were studied using techniques such as ellipsometer, X-ray photoelectron spectroscopy, scanning electron microscopy-energy-dispersive X-ray, surface zeta potential, and infrared reflection-adsorption spectroscopy.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2016. Vol. 8, no 44, p. 30616-30627
Keywords [en]
coating, surface Initiated ATRP, stainless steel 316L, graft density, poly(oxyethyleneglycol)methacrylate, diblock polymer brush, grain boundary, electrografting, aryldiazonium
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-242605DOI: 10.1021/acsami.6b10466ISI: 000387737200087PubMedID: 27792314Scopus ID: 2-s2.0-84994777422OAI: oai:DiVA.org:kth-242605DiVA, id: diva2:1291868
Note

QC 20190226

Kan inte hitta belägg för att Daasbjerg är från KTH

Available from: 2019-02-26 Created: 2019-02-26 Last updated: 2019-02-26Bibliographically approved

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Subbiahdoss, GuruprakashPedersen, Steen UttrupMeyer, Rikke LouiseDaasbjerg, Kim
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