Synthetic Polyester from Algae Oil
| Autor: | Stefan Mecking, Philipp Roesle, Peter G. Kroth, Carolina Río Bártulos, Julia Zimmerer, Sandra K. Hess, Bernard Lepetit, Angelika Eckert, Florian Stempfle |
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| Rok vydání: | 2014 |
| Předmět: |
Condensation polymer
Polyesters Catalysis chemistry.chemical_compound Algae Isomerism Coordination Complexes Microalgae Organic chemistry polyester Phaeodactylum tricornutum Unsaturated fatty acid Carbon Monoxide biology catalysis Chemistry Methanol General Chemistry General Medicine biology.organism_classification renewable resources Algae fuel Algae oil ddc:540 Fatty Acids Unsaturated Isomerization Oils Palladium |
| Zdroj: | Angewandte Chemie. 126:6918-6922 |
| ISSN: | 0044-8249 |
| DOI: | 10.1002/ange.201403991 |
| Popis: | Current efforts to technically use microalgae focus on the generation of fuels with a molecular structure identical to crude oil based products. Here we suggest a different approach for the utilization of algae by translating the unique molecular structures of algae oil fatty acids into higher value chemical intermediates and materials. A crude extract from a microalga, the diatom Phaeodactylum tricornutum, was obtained as a multicomponent mixture containing amongst others unsaturated fatty acid (16:1, 18:1, and 20:5) phosphocholine triglycerides. Exposure of this crude algae oil to CO and methanol with the known catalyst precursor [{1,2-(tBu2PCH2)2C6H4}Pd(OTf)](OTf) resulted in isomerization/methoxycarbonylation of the unsaturated fatty acids into a mixture of linear 1,17- and 1,19-diesters in high purity (>99 %). Polycondensation with a mixture of the corresponding diols yielded a novel mixed polyester-17/19.17/19 with an advantageously high melting and crystallization temperature. |
| Databáze: | OpenAIRE |
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