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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11937

Title: Embedding Multiple Site-Specific Functionalities into Polymer Chains via Nitrone-Mediated Radical Coupling Reactions
Authors: Wong, Edgar H. H.
Stenzel, Martina H.
JUNKERS, Thomas
Barner-Kowollik, Christopher
Issue Date: 2011
Publisher: WILEY-BLACKWELL
Citation: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 49(10). p. 2118-2126
Abstract: A facile method to generate polymer materials with embedded functional groups at known and precise positions along the polymer backbone is described. In the presented approach, well-defined bifunctional poly(isobornyl acrylate)s preformed via atom transfer radical polymerization (ATRP) containing a, x-bromo end groups are reactivated and subsequently coupled in a stepwise manner via the nitrone-mediated radical coupling (NMRC) technique. The generated polymers contain on average four nitrone moieties at evenly spaced locations. The number of embedded functionalities, and thus, the size of the polymer is limited by disproportionation reactions occurring during the nitroxide termination sequence. Using the nitrone as a functional carrier, secondary functionalities can be incorporated into the polymer with ease. To exemplify such an approach, an alkyne-functionalized nitrone is used to construct a multisegment structure via NMRC reactions followed by postmodification of the obtained polymers with 3-mercaptopropionic acid via UV-induced thiol-yne reactions. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2118-2126, 2011
Notes: [Junkers, Thomas] Univ Hasselt, Inst Mat Res, Polymer React Design Grp, B-3590 Diepenbeek, Belgium. [Wong, Edgar H. H.; Barner-Kowollik, Christopher] KIT, Inst Tech Chem & Polymerchem, D-76128 Karlsruhe, Germany. [Wong, Edgar H. H.; Stenzel, Martina H.] Univ New S Wales, CAMD, Sydney, NSW 2052, Australia. thomas.junkers@uhasselt.be; christopher.barner-kowollik@kit.edu
URI: http://hdl.handle.net/1942/11937
DOI: 10.1002/pola.24639
ISI #: 000289443900002
ISSN: 0887-624X
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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