Aliphatic long-chain C 20 polyesters from Olefin metathesis

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TRZASKOWSKI, Justyna, Dorothee QUINZLER, Christian BÄHRLE, Stefan MECKING, 2011. Aliphatic long-chain C 20 polyesters from Olefin metathesis. In: Macromolecular Rapid Communications. 32(17), pp. 1352-1356. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/marc.201100319

@article{Trzaskowski2011-09-01Aliph-17555, title={Aliphatic long-chain C 20 polyesters from Olefin metathesis}, year={2011}, doi={10.1002/marc.201100319}, number={17}, volume={32}, issn={1022-1336}, journal={Macromolecular Rapid Communications}, pages={1352--1356}, author={Trzaskowski, Justyna and Quinzler, Dorothee and Bährle, Christian and Mecking, Stefan} }

Bährle, Christian 2012-01-13T13:29:28Z Aliphatic long-chain C 20 polyesters from Olefin metathesis Bährle, Christian eng Mecking, Stefan Trzaskowski, Justyna Trzaskowski, Justyna Quinzler, Dorothee 2012-01-13T13:29:28Z terms-of-use 2011-09-01 Self-metathesis of undecenoic acid with [(PCy3)2Cl2Ru=CHPh] (2), followed by exhaustive hydrogenation yielded pure 1,20-eicosanedioic acid (5) (>99%) free of side-products from isomerization. Polycondensation with eicosane-1,20-diol (6), formed by reduction of the diol, yielded polyester 20,20 (Tm = 108 °C). By comparison, the known ADMET polymerization of undec-10-enyl undec-10-enoate (7), and subsequent exhaustive polymer-analogous hydrogenation yielded a polyester (poly-8) with irregular structure of the ester groups in the polymer chain (-O(C=O)[BOND] vs. -C(=O)O-) (Tm = 103 °C). Hydrogenation of secondary dispersions of poly-7 yielded aqueous dispersions of the long-chain aliphatic polyester poly-8. First publ. in: Macromolecular Rapid Communications ; 32 (2011), 17. - S. 1352-1356 Mecking, Stefan Quinzler, Dorothee

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