Branched polymers via ROMP of termimers
- Hanik, Nils Departement für Chemie, Universität Freiburg, Fribourg, Switzerland
- Kilbinger, Andreas F. M. Departement für Chemie, Universität Freiburg, Fribourg, Switzerland
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01.03.2016
Published in:
- Macromolecular Rapid Communications. - 2016, vol. 37, no. 6, p. 532–538
functional termination
Grubbs catalysts
hyperbranched polymers
ring opening metathesis polymerization
English
Today's olefin metathesis catalysts show high reactivity, selectivity, and functional group tolerance and allow the design of new syntheses of precisely functionalized polymers. Here the synthesis of a new end-capping reagent is investigated allowing the introduction of a highly reactive activated ester end-group at the polymer chain end as well as its prefunctionalization to directly introduce functional moieties. The versatility of this new end-capping reagent is demonstrated by utilizing it to synthesize a so-called termimer (a monomer with termination capabilities). Copolymerization of a norbornene derivative with the termimer leads to hyperbranched ring-opening metathesis polymerization polymers as proven by gel permeation chromatography and MALDI-ToF-(matrix-assisted laser desorption/ionization time of flight) mass spectrometry.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Chimie
- Language
-
- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 260664
- DOI 10.1002/marc.201500628
- Persistent URL
- https://folia.unifr.ch/unifr/documents/304864
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