Enhanced spin capturing polymerization: An efficient and versatile protocol for controlling molecular weight distributions

Wong, E. H. H., Junkers, T., & Barner-Kowollik, C. (2008) Enhanced spin capturing polymerization: An efficient and versatile protocol for controlling molecular weight distributions. Journal of Polymer Science, Part A: Polymer Chemistry, 46(21).

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Abstract

A study was conducted to demonstrate a control mechanism employing a well-known class of radical spin traps (nitrones) as control reagents to efficiently capture macroradicals by forming irreversibly terminating macronitroxides that both enhance and control cross-termination reactions, thereby allowing for the synthesis of polymeric materials with defined properties. The efficiency and versatility of this technique, called enhanced spin capturing polymerization (ESCP), are exemplified by three distinctively different monomer systems. These monomer systems include the thermal polymerization of styrene and butyl acrylate (BA) in bulk and UV-induced polymerization of N-isopropylacrylamide (NIPAAm) in aqueous solution. The study has also shown how the molecular weight distributions of the polymers prepared through ESCP can be accurately predicted.

Impact and interest:

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37 citations in Web of Science®
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ID Code: 99198
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :36
Export Date: 5 September 2016
CODEN: JPACE
Correspondence Address: Junkers, T.; Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Universität Karlsruhe (TH), Engesserstr. 18, 76128 Karlsruhe, Germany; email: thomas.junkers@polymer.uni-karlsruhe.de
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Keywords: Block polymers, Degree of polymerization (DP), Kinetics (polym.), Molecular weight distribution/molar mass distribution, Polystyrene, Radical spin traps, Water-soluble polymers, Acrylic monomers, Amides, Block copolymers, Chemical reactions, Free radical polymerization, Image segmentation, Materials properties, Molecular weight, Molecular weight distribution, Monomers, Polymerization, Polymers, Polystyrenes, Solutions, Spin dynamics, Styrene, ABS resins
DOI: 10.1002/pola.23025
ISSN: 0887624X
Divisions: Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 28 Jun 2017 15:01

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