Long-Spaced Aliphatic Polyesters


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ORTMANN, Patrick, Stefan MECKING, 2013. Long-Spaced Aliphatic Polyesters. In: Macromolecules. 46(18), pp. 7213-7218. ISSN 0024-9297. eISSN 1520-5835

@article{Ortmann2013Long--26595, title={Long-Spaced Aliphatic Polyesters}, year={2013}, doi={10.1021/ma401305u}, number={18}, volume={46}, issn={0024-9297}, journal={Macromolecules}, pages={7213--7218}, author={Ortmann, Patrick and Mecking, Stefan} }

2014-02-26T10:46:15Z Long-Spaced Aliphatic Polyesters Mecking, Stefan eng Ortmann, Patrick Macromolecules ; 46 (2013), 18. - S. 7213–7218 2013 Long-spaced aliphatic model polyesters were synthesized by acyclic diene metathesis (ADMET) copolymerization of undec-10-en-1-yl undec-10-enoate and undeca-1,10-diene followed by exhaustive hydrogenation. Resulting polyesters contained 52.6 to 0.9 ester groups per 1000 methylene units, randomly distributed in the polyethylene main chain. Melting points of these materials quantitatively agree with an inclusion model and decrease linearly vs linear polyethylene with the mole fraction of ester groups. By comparison to methyl branched polyethylenes and regularly spaced long-chain A<sub>2</sub> + B<sub>2</sub> polyesters, these findings can be related to steric demand and regular versus nonregular spacing of polar ester groups in crystallized polyester chains, respectively. Mecking, Stefan 2014-02-26T10:46:15Z deposit-license Ortmann, Patrick

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