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Article dans une revue

Functionalization of Titanium Surfaces with Polymer Brushes Prepared from a Biomimetic RAFT Agent

Abstract : Well-defined dopamine end-functionalized polymers were synthesized by employing the reversible addition–fragmentation chain transfer (RAFT) polymerization technique. tert-Butyl acrylate, N-isopropylacrylamide, and styrene monomers were polymerized in the presence of azobis (isobutyronitrile) and a new catechol-based biomimetic RAFT agent incorporating a trithiocarbonate unit. All RAFT polymerizations exhibited pseudofirst-order kinetics, a linear increase of the number-average molar mass (Mn SEC) with conversion and narrow molar mass distributions (polydispersity <1.2). The resulting homopolymers exhibited the electroactive catechol and the ω-trithiocarbonyl end groups. Subsequent immobilization of dopamine end-functionalized polymers on titanium surfaces was monitored by using a surface plasmon resonance (SPR) sensor, and the resulting films were characterized by contact angle, infrared ATR spectroscopy, atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS).
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https://hal.univ-lille.fr/hal-03326778
Contributeur : Lilloa Université de Lille <>
Soumis le : jeudi 26 août 2021 - 14:19:11
Dernière modification le : vendredi 27 août 2021 - 09:50:03

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Cedric Zobrist, Jonathan Sobocinski, Joel Lyskawa, David Fournier, Valérie Gaucher, et al.. Functionalization of Titanium Surfaces with Polymer Brushes Prepared from a Biomimetic RAFT Agent. Macromolecules, American Chemical Society, 2011, Macromolecules, 44 (15), pp.5883-5892. ⟨10.1021/ma200853w⟩. ⟨hal-03326778⟩

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