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Long-Spaced Polyketones from ADMET Copolymerizations as Ideal Models for Ethylene/CO Copolymers

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2015

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https://doi.org/10.1021/acsmacrolett.5b00324
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ACS Macro Letters. 2015, 4, pp. 704-707. eISSN 2161-1653. Available under: doi: 10.1021/acsmacrolett.5b00324

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Long-spaced polyketones containing 0–52.6 ketone groups per 1000 methylene units were prepared by ADMET copolymerization of docosa-1,21-dien-11-one (1) with undeca-1,10-diene (2), followed by exhaustive hydrogenation. Melting point differences of 5–10 °C were found between these polyketones and their reported congeners from ethylene/CO copolymerizations with comparable CO contents, which were related to additional methyl branching occurring in insertion copolymerization. Consequently, ADMET-derived polyketones can act as defect-free model polyketones. Comparison with polymers containing the same degrees of other carbonyl functionalities (esters, carbonates) shows that the partial compensation of the disturbance of polyethylene crystallization goes along with the groups’ polarity.

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ISO 690ORTMANN, Patrick, Florian P. WIMMER, Stefan MECKING, 2015. Long-Spaced Polyketones from ADMET Copolymerizations as Ideal Models for Ethylene/CO Copolymers. In: ACS Macro Letters. 2015, 4, pp. 704-707. eISSN 2161-1653. Available under: doi: 10.1021/acsmacrolett.5b00324
BibTex
@article{Ortmann2015LongS-31418,
  year={2015},
  doi={10.1021/acsmacrolett.5b00324},
  title={Long-Spaced Polyketones from ADMET Copolymerizations as Ideal Models for Ethylene/CO Copolymers},
  volume={4},
  journal={ACS Macro Letters},
  pages={704--707},
  author={Ortmann, Patrick and Wimmer, Florian P. and Mecking, Stefan}
}
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