BioChem - DOS

Synthetic Polyester from Algae Oil

Angewandte Chemie

Roesle, Philipp; Stempfle, Florian; Hess, Sandra K.; Zimmerer, Julia; Rí o  Bá rtulos, Carolina; Lepetit, Bernard; Eckert, Angelika; Kroth, Peter G.; Mecking, Stefan

<P><B>Abstract</B></P><P>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&#8208;(<I>t</I>Bu<SUB>2</SUB>PCH<SUB>2</SUB>)<SUB>2</SUB>C<SUB>6</SUB>H<SUB>4</SUB>}Pd(OTf)](OTf) resulted in isomerization/methoxycarbonylation of the unsaturated fatty acids into a mixture of linear 1,17&#8208; and 1,19&#8208;diesters in high purity (>99&thinsp;%). Polycondensation with a mixture of the corresponding diols yielded a novel mixed polyester&#8208;17/19.17/19 with an advantageously high melting and crystallization temperature.</P>

2014

WILEY&#x2010;VCH Verlag

0044-8249

1521-3757

126

26

pp.6918-6922

10.1002/ange.201403991

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART69538261

https://kops.uni-konstanz.de/bitstream/123456789/28331/2/Roesle_283316.pdf

Algen&ouml; l; Erneuerbare Rohstoffe; Katalyse; Polyester;