Please use this identifier to cite or link to this item:
|Title:||Stainless steel surfaces with thiol-terminated hyperbranched polymers for functionalization via thiol-based chemistry|
Lay-Ming Teo, S.
|Citation:||Yang, W.J., Neoh, K.-G., Kang, E.-T., Lay-Ming Teo, S., Rittschof, D. (2013). Stainless steel surfaces with thiol-terminated hyperbranched polymers for functionalization via thiol-based chemistry. Polymer Chemistry 4 (10) : 3105-3115. ScholarBank@NUS Repository. https://doi.org/10.1039/c3py00009e|
|Abstract:||Hyperbranched polyethyleneimine (BPEI) was coupled to a polydopamine-coated stainless steel (SS) substrate. Subsequent mercaptoethylation of BPEI with ethylene sulfide produced thiol functional groups on the SS surface. Functionalization of the surface was achieved by end-capping of the hyperbranches with organic molecules via thiol-based chemistry, including thiol-epoxy coupling, thiol-ene radical photo-addition and thiol-Michael addition. The SS-P(HEMA-b-SBMA) surface was prepared via thiol-ene radical photo-addition of the hyperbranches with an alkene-functionalized poly(2-hydroxyethyl methacrylate) (alkene-PHEMA) from atom transfer radical polymerization (ATRP) and subsequent block copolymerization of the zwitterionic monomer, N-(3-sulfopropyl)-N-(methacryloxyethyl)-N,N-dimethyl ammonium betaine (SBMA). The SS-PPEGMA and SS-PMETA surfaces were prepared, respectively, by thiol-initiated photopolymerization of poly(ethylene glycol)methyl ether methacrylate (PEGMA) and 2-(methacryloyloxy)ethyl trimethylammonium chloride (META). The antifouling SS-P(HEMA-b-SBMA) and SS-PPEGMA surfaces exhibit resistance to bacterial adhesion, while the SS-PMETA surface is bactericidal. Metal surfaces with thiol-terminated hyperbranches thus provide a versatile platform for tailoring surface functionalities. © 2013 The Royal Society of Chemistry.|
|Source Title:||Polymer Chemistry|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 14, 2018
WEB OF SCIENCETM
checked on Aug 6, 2018
checked on Aug 3, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.