Cyclo‐depolymerisation of polyundecanoate and related polyesters: characterisation of cyclic oligoundecanoates and related cyclic oligoesters
Abstract
The cyclo-depolymerisation of linear polyundecanoate has been studied in detail. The cyclic oligomers produced were characterised by gel permeation chromatography, 1 H NMR spectroscopy and mass spectroscopy in comparison with the corresponding linear oligomers. A sample of the cyclic dimer was isolated and its crystal structure determined. Cyclic oligooctanoates, oligodecanoates and oligododecanoates were prepared similarly. The ring-opening polymerisation of the cyclic oligoundecanoates was briefly investigated.
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Hodge showed that the depolymerization of polyundecanoate in 2% w/v chlorobenzene in the presence of a tin catalyst produced 90% yield of cyclic oligomers with cyclic dimer being the major product (56%).
“Hodge showed that the depolymerization of polyundecanoate in 2% w/v chlorobenzene in the presence of a tin catalyst produced 90% yield of cyclic oligomers with cyclic dimer being the major product (56%).”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [459]
The molecular weights of these polymers can be significantly higher than the original step-growth polymers.
“The molecular weights of these polymers can be significantly higher than the original step-growth polymers.459”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [459]
The isolated cyclic dimer can undergo ROP in neat with a tin catalyst to regenerate polyundecanoates.
“The isolated cyclic dimer can undergo ROP in neat with a tin catalyst to regenerate polyundecanoates.”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [459]
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- Authors
- Ruddick, C. L., Hodge, P., Zhuo, Y., Beddoes, R. L., & Helliwell, M.
- ORCID
- Hodge, Philip
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 1999
- Volume
- 9
- Issue
- 10
- Pages
- 2399-2405
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2095019656
- Cited by
- 34
- References
- 29
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 1 · 2019: 2 · 2017: 1 · 2016: 1 · 2015: 3 · 2014: 2 · 2012: 1
- FWCI
- 0.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Materials Chemistry (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Keywords
- cyclic dimers, ring-opening polymerization, polyester degradation, crystal structure
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