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No Strain, No Gain? : Enzymatic Ring-Opening Polymerization of Strainless Aliphatic Macrolactones

No Strain, No Gain? : Enzymatic Ring-Opening Polymerization of Strainless Aliphatic Macrolactones

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WITT, Timo, Manuel HÄUSSLER, Stefan MECKING, 2017. No Strain, No Gain? : Enzymatic Ring-Opening Polymerization of Strainless Aliphatic Macrolactones. In: Macromolecular Rapid Communications : MRC. 38(4), 1600638. ISSN 1022-1336. eISSN 1521-3927

@article{Witt2017-02Strai-38594, title={No Strain, No Gain? : Enzymatic Ring-Opening Polymerization of Strainless Aliphatic Macrolactones}, year={2017}, doi={10.1002/marc.201600638}, number={4}, volume={38}, issn={1022-1336}, journal={Macromolecular Rapid Communications : MRC}, author={Witt, Timo and Häußler, Manuel and Mecking, Stefan}, note={Article Number: 1600638} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/38594"> <dcterms:abstract xml:lang="eng">Starting from readily available oleic and erucic acid, macrocyclic nonadecalactone (C19 ) and tricosalactone (C23 ) can be synthesized in polymerization grade purity in a four-step reaction sequence. Ring-opening polymerization (ROP) of these strainless macrolactones can be performed utilizing an enzyme as a catalyst. Despite the missing ring-strain as key driving force for smaller (strained) lactones, high molar masses (Mn ≈ 10(5) g mol(-1) ) can be accessed in an entropically driven ROP. Polyester-19 and polyester-23 prepared feature melting temperatures well above 100 °C. Further analysis of the mechanical properties of these materials displays the resemblance to polyethylene. For example, Young's moduli on the order of 600 MPa are observed as a result of the high crystallinity of the polymer.</dcterms:abstract> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-04-25T08:18:29Z</dc:date> <dc:contributor>Häußler, Manuel</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-04-25T08:18:29Z</dcterms:available> <dc:creator>Häußler, Manuel</dc:creator> <dc:contributor>Mecking, Stefan</dc:contributor> <dc:language>eng</dc:language> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/38594"/> <dc:contributor>Witt, Timo</dc:contributor> <dc:creator>Mecking, Stefan</dc:creator> <dcterms:issued>2017-02</dcterms:issued> <dcterms:title>No Strain, No Gain? : Enzymatic Ring-Opening Polymerization of Strainless Aliphatic Macrolactones</dcterms:title> <dc:creator>Witt, Timo</dc:creator> </rdf:Description> </rdf:RDF>

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