Synthesis of patterned polymer brushes from flexible polymeric films |
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Authors: | Tamer Farhan |
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Institution: | Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Pembroke Street, Cambridge CB2 1EW, UK |
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Abstract: | Surface-initiated polymerizations were carried out from polymeric surfaces of commercially important polyester films, poly(ethylene terephthalate) (PET) and poly(ethylene naphthalate) (PEN). These plastic films were modified prior to polymerization by plasma oxidation, exposing surface hydroxyl groups, in order to immobilise patterned self assembled monolayers (SAMs) of trichlorosilane initiator, through the soft lithographic method of microcontact printing (μCP). Subsequently, polymerizations were initiated from the surface via controlled atom transfer radical polymerization (ATRP), under aqueous conditions, to create patterned brushes of the thermo-responsive polymer poly(N-isopropyl acrylamide) (PNIPAM). By creating patterned, rather than homogeneous brushes characterization was made possible by atomic force microscopy (AFM). |
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Keywords: | Surface-initiated polymerization Atom transfer radical polymerization Microcontact printing Poly(ethylene terephthalate) Poly(ethylene naphthalate) |
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