title: Acyclic diene metathesis with a monomer from renewable resources: control of molecular weight and one-step preparation of block copolymers.
abstract: The preparation of a long-chain aliphatic alpha,omega-diene from plant oil derivatives and its subsequent polymerization through acyclic diene metathesis (ADMET) is described. The ADMET bulk polymerization of the thus-obtained monomer, undecyl undecenoate, was investigated and optimized by applying ruthenium-based metathesis catalysts from Grubbs and Hoveyda-Grubbs, leading to high-molecular-weight polyesters. Moreover, by applying different amounts of methyl 10-undecenoate as a chain stopper in this ADMET step growth polymerization, the molecular weight of the resulting polyester could be tuned in a range from approximately 10 to 45 kDa. Finally, the application of a poly(ethylene glycol) methyl ether acrylate as the chain stopper led to the preparation of ABA triblock copolymers in a one-step, one-pot procedure.
authors.affiliation: University of Applied Sciences Oldenburg/Ostfriesland/Wilhelmshaven, Constantiaplatz 4, Emden, Germany.
authors.forename: Anastasiya
authors.initials: A
authors.lastname: Rybak
authors.forename: Michael A R
authors.initials: MA
authors.lastname: Meier
mesh_terms: D003247:Conservation of Natural Resources; D006839:Hydrocarbons, Acyclic / Q000737:chemistry*; D008970:Molecular Weight; D010938:Plant Oils / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D006839:Hydrocarbons, Acyclic; D010938:Plant Oils; D011108:Polymers; D011092:Polyethylene Glycols