Cited by 61Synthetic Organic Chemistry Methodsbiodegradable polymer synthesis and propertiesAdvanced Polymer Synthesis and Characterization

Chain Multiplication of Fatty Acids to Precise Telechelic Polyethylene

Witt, Timo, Häußler, Manuel, Kulpa, Stefanie, Mecking, Stefan·2017·Angewandte Chemie International Edition

Abstract

Starting from common monounsaturated fatty acids, a strategy is revealed that provides ultra‐long aliphatic α,ω‐difunctional building blocks by a sequence of two scalable catalytic steps that virtually double the chain length of the starting materials. The central double bond of the α,ω‐dicarboxylic fatty acid self‐metathesis products is shifted selectively to the statistically much‐disfavored α,β‐position in a catalytic dynamic isomerizing crystallization approach. “Chain doubling” by a subsequent catalytic olefin metathesis step, which overcomes the low reactivity of this substrates by using waste internal olefins as recyclable co‐reagents, yields ultra‐long‐chain α,ω‐difunctional building blocks of a precise chain length, as demonstrated up to a C 48 chain. The unique nature of these structures is reflected by unrivaled melting points (Tm=120 °C) of aliphatic polyesters generated from these telechelic monomers, and by their self‐assembly to polyethylene‐like single crystals.

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Crossref · 10.1002/anie.201702796

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  • From 1,48-tetraoctacontane diol, the diethyl carbonate polymerisation method yielded a high molecular weight (Mw ~ 90.000 g mol -1 , Mn ~ 40.000 g mol -1 ) ductile PC-48 with a narrow melt transition at Tm = 113 °C.

    “From 1,48-tetraoctacontane diol, generated by catalytic chaindoubling of erucic acid, 24 the diethyl carbonate polymerisation method yielded a high molecular weight (Mw ~ 90.000 g mol -1 , Mn ~ 40.000 g mol -1 ) ductile PC-48 with a narrow melt transition at Tm = 113 °C”

    From Closed-loop recycling of polyethylene-like materials (2021) · cites this paper as [24]

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Authors
Witt, T., Häußler, M., Kulpa, S., & Mecking, S.
Affiliations
University of Konstanz (DE)
Corresponding author
Mecking, Stefan
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2017-05-23
Volume
56
Issue
26
Pages
7589-7594
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2611486301
Cited by
61
References
41
Citations by year
2026: 6 · 2025: 8 · 2024: 11 · 2023: 5 · 2022: 5 · 2021: 13 · 2020: 4 · 2019: 4 · 2018: 4 · 2017: 1
FWCI
1.48
Type
journal article
Language
en
Open access
closed
Locations
  • Angewandte Chemie International Edition (publishedVersion)
  • PubMed (publishedVersion)
  • KOPS (University of Konstanz) (submittedVersion)
Funders
Baden-Württemberg Stiftung
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Synthetic Organic Chemistry Methods
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
Keywords
olefin metathesis, self-metathesis, aliphatic polyesters, melting point, self-assembly, single crystals, monounsaturated fatty acids

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