Ultra-fast raft-hda click conjugation: an efficient route to high molecular weight block copolymersa

Inglis, A. J., Stenzel, M. H., & Barner-Kowollik, C. (2009) Ultra-fast raft-hda click conjugation: an efficient route to high molecular weight block copolymersa. Macromolecular Rapid Communications, 30(21).

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Abstract

The use of the reversible addition fragmentation chain transfer -hetero Diels-Alder (RAFTHDA) click reaction for the modular construction of block copolymers is extended to the generation of high molecular weight materials. Cyclopentadienyl end-functionalized polystyrene (PS-Cp) prepared via both atom transfer radical polymerization (ATRP) and the RAFT process are conjugated to poly(isobornyl acrylate) (PiBoA) (also prepared via RAFT polymerization) to achieve well-defined block copolymers with molecular weights ranging from 34000 to over 100 000 g . mor-1 and with small polydispersities (PDI < 1.2). The conjugation reactions proceeded in a very rapid fashion (less than 10 min in the majority of cases) under ambient conditions of temperature and atmosphere. The present study demonstrates -for the first time -that RAFTHDA click chemistry can provide access to high molecular weight block copolymers in a simple and straight-forward fashion. © 2009 WILEY-VCH Verlag GmbH & Co. KGaA.

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ID Code: 99218
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :45
Export Date: 5 September 2016
CODEN: MRCOE
Correspondence Address: Barner-Kowollik, C.; Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Universität Karlsruhe (TH)/ Karlsruhe Institute of Technology (KIT), Engesserstraße 18, 76128 Karlsruhe, Germany; email: chrlstopher.barner-kowollik@polymer.uni-karlsruhe.de
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Keywords: Atom transfer radical polymerization (atrp), Click chemistry, Diblock copolymers, Hetero diels-alder cycloaddition, Reversible addition fragmentation chain transfer (raft), Atoms, Block copolymers, Copolymerization, Cycloaddition, Free radical polymerization, Functional polymers, Modular construction, Molecular weight, Plastic products, Polydispersity, Polymers, Polystyrenes, Atom transfer radical polymerization
DOI: 10.1002/marc.200900363
ISSN: 10221336
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 10 Oct 2016 00:38

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