Individually addressable thermo- and redox-responsive block copolymers by combining anionic polymerization and RAFT protocols

Schmidt, B. V.K.J. , Elbert, J., Barner-Kowollik, C. and Gallei, M. (2014) Individually addressable thermo- and redox-responsive block copolymers by combining anionic polymerization and RAFT protocols. Macromolecular Rapid Communications, 35(7), pp. 708-714. (doi:10.1002/marc.201300870) (PMID:24470426)

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Abstract

A novel diblock copolymer consisting of poly(vinylferrocene) (PVFc) and poly( N , N -diethyl-acrylamide) (PDEA) is synthesized via a combination of anionic and RAFT polymerization. The use of a novel route to hydroxyl-end-functionalized metallopolymers in anionic polymerization and subsequent esterifi cation with a RAFT agent leads to a PVFc macro-CTA (Mn= 3800 g mol −1 ; Ð= 1.17). RAFT polymerization with DEA affords block copolymers as evidenced by 1 H NMR spectros-copy as well as size exclusion chromatography (6400 ≤ Mn≤33700 g mol −1 ; 1.31 ≤ Ð 1.28). Self-assembly of the amphiph-ilic block copolymers in aqueous solution leads to micelles as shown via TEM. Importantly, the distinct thermo-responsive and redox-responsive character of the blocks is probed via dynamic light scattering and found to be individually and repeatedly addressable.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Schmidt, Dr Bernhard
Authors: Schmidt, B. V.K.J., Elbert, J., Barner-Kowollik, C., and Gallei, M.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Macromolecular Rapid Communications
Publisher:Wiley
ISSN:1022-1336
ISSN (Online):1521-3927
Published Online:27 January 2014

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