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Acyclic Triene Metathesis Oligo‐ and Polymerization of High Oleic Sun Flower Oil
Author(s) -
Biermann Ursula,
Metzger Jürgen O.,
Meier Michael A. R.
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200900615
Subject(s) - metathesis , grubbs' catalyst , polymerization , acyclic diene metathesis , polymer chemistry , polyester , sunflower oil , acrylate , chemistry , oleic acid , polymer , double bond , methyl acrylate , ring opening metathesis polymerisation , organic chemistry , copolymer , biochemistry
High oleic sunflower oil, a renewable raw material consisting of triglycerides with internal CC‐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, 1 H and 13 C NMR, and ESI‐MS.