[en] Well defined graft copolymers have been synthesized by a nitroxide-mediated "living" free radical process using pre-formed macromonomers. Analysis of the graft systems revealed that the macromonomer was efficiently incorporated into the polymeric back-bone to give block copolymers of controlled molecular weight and narrow polydispersi-ties. An added benefit of the "living" free radical process is that macromonomers, such as polylactide or polycaprolactone, which contain reactive functional groups can be used to form novel graft Systems using this approach. Functionalized monomers or polymeric initiators were also used in the copolymerization mixture to give graft Systems with a variety of functional groups attached to the backbone.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Hawker, Craig Jon; IBM Research Division, NSF Center for Polymeric Interfaces and Macromolecular Assemblies, Almaden Research Center, San Jose , USA
Mecerreyes, David; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Elce, Edmund; IBM Research Division, NSF Center for Polymeric Interfaces and Macromolecular Assemblies, Almaden Research Center, San Jose , USA
Dao, Julian; IBM Research Division, NSF Center for Polymeric Interfaces and Macromolecular Assemblies, Almaden Research Center, San Jose , USA
Hedrick, James L.; IBM Research Division, NSF Center for Polymeric Interfaces and Macromolecular Assemblies, Almaden Research Center, San Jose , USA
Barakat, Ibrahim; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Dubois, Philippe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Volksen, Willi; IBM Research Division, NSF Center for Polymeric Interfaces and Macromolecular Assemblies, Almaden Research Center, San Jose , USA
Language :
English
Title :
Living free radical polymerization of macromonomers: preparation of well defined graft copolymers
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