Cited by 52Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesAdvanced Polymer Synthesis and Characterization

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

Ortmann, Patrick, Wimmer, Florian P., Mecking, Stefan·2015·ACS Macro Letters

Abstract

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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Crossref · 10.1021/acsmacrolett.5b00324

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  • Low concentrations of keto groups are anticipated to not disturb the crystalline order in linear polyethylenes due to their ability to accommodate into the polyethylene crystal lattice.

    “Due to their ability to accomodate into the polyethylene crystal lattice, 6 low concentrations of keto groups are anticipated to not disturb the crystalline order in linear polyethylenes.”

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Authors
Ortmann, P., Wimmer, F. P., & Mecking, S.
Affiliations
University of Konstanz (DE)
Corresponding author
Mecking, Stefan
Venue
ACS Macro Letters
Published
2015-06-19
Volume
4
Issue
7
Pages
704-707
ISSN
2161-1653 (ISSN-L)
OpenAlex
W900578850
Cited by
52
References
27
Citations by year
2026: 7 · 2025: 8 · 2024: 10 · 2023: 4 · 2022: 3 · 2021: 5 · 2020: 3 · 2019: 6 · 2018: 1 · 2017: 1 · 2016: 3 · 2015: 1
FWCI
1.28
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Macro Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
Keywords
methyl branching, melting point, polyethylene crystallization, model polymers

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