Journal
MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume 211, Issue 8, Pages 854-862Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.200900615
Keywords
branched polymers; olefin metathesis; renewable; resources
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Funding
- German Federal Ministry of Food, Agriculture and Consumer Protection [FKZ 2026905]
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High oleic sunflower oil, a renewable raw material consisting of triglycerides with internal C=C-double bonds, was polymerized via acyclic triene metathesis (ATMET) to highly branched and functionalized polyesters. If the Hoveyda-Grubbs second generation catalyst was used and methyl acrylate was introduced as a chain stopper, the molecular weight of the obtained polymers could be tuned by varying the ratio of the triglyceride and methyl acrylate. Using the first generation Grubbs catalyst for the polymerization of high oleic sunflower oil, no cross-linking was observed, even without the use of a chain stopper. The resulting branched materials were characterized by GPC, H-1 and C-13 NMR, and ESI-MS.
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