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Polymers 2018, 10(9), 956; https://doi.org/10.3390/polym10090956

Crosslinked-Polymer Brushes with Switchable Capture and Release Capabilities

1
Department of Chemistry, Amasya University, Ipekkoy, Amasya 05100, Turkey
2
Department of Biotechnology, Amasya University, Ipekkoy, Amasya 05100, Turkey
Received: 26 July 2018 / Revised: 10 August 2018 / Accepted: 13 August 2018 / Published: 29 August 2018
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Abstract

Crosslinked-polymer brushes give rise to new opportunities for functionalizing, protecting, and structuring both organic and inorganic materials. In this study, pH- and temperature-switchable crosslinked-polymer brushes were easily prepared by combining the in situ method with reversible addition–fragmentation chain transfer (RAFT) polymerization. Initially, the RAFT agent was immobilized on an amine-terminated silicon wafer surface and utilized in the surface-initiated RAFT polymerization of 2-N-morpholinoethyl methacrylate (MEMA) as a monomer, and β-cyclodextrin methacrylate (CDMA) was used as a crosslinker on the silicon substrate. Measurements of film thickness, water contact angle, surface morphology, and structural characteristics of the resulting surfaces confirmed the poly(2-N-morpholinoethyl methacrylate) (PMEMA) brush-gels. Reversible capture and release measurements of methylene blue as a model molecule were also performed by UV–vis analysis. The switchable properties of the PMEMA brush-gels were maintained over five cycles. The results indicate that these PMEMA brush-gels with reversible capture and release properties might have widespread potential applications, including improved diagnostic tools as well as bioseparation. View Full-Text
Keywords: crosslinked-polymer brushes; brush gels; RAFT polymerization; cyclodextrin; responsive polymer crosslinked-polymer brushes; brush gels; RAFT polymerization; cyclodextrin; responsive polymer
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Demirci, S. Crosslinked-Polymer Brushes with Switchable Capture and Release Capabilities. Polymers 2018, 10, 956.

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