Catalyst residues severely impact the thermal stability and degradation mechanism of polycarbonates: How to turn a flaw into an opportunity Article Swipe
Riccardo Chiarcos
,
Katia Sparnacci
,
Diego Antonioli
,
C Ivaldi
,
Valentina Gianotti
,
Riccardo Pó
,
Paolo Biagini
,
Simona Losio
,
Michele Laus
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1016/j.eurpolymj.2024.113148
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1016/j.eurpolymj.2024.113148
Three poly(cyclohexene carbonates) with molecular weights ranging from 4.9 to 9.4 kg/mol were synthesized from cyclohexene oxide and CO2 using macrocyclic phenolate dimetallic catalysts and purified by conventional purification procedure. A decrease in thermal stability of approximately 100 °C was observed in comparison to poly(cyclohexene carbonates) with similar molecular weights synthesized using salen metal catalysts. This decrease derives from the presence of traces of dimetallic catalyst which is able to promote the depolymerisation of poly(cyclohexene carbonate) to CO2 and cyclohexene oxide in contrast to the usual backbiting mechanism that leads to cyclic carbonate. The onset of the degradation can be precisely tuned by changing the amount of residual dimetallic catalyst or including species with functional groups that can reduce the availability of the catalytic centers. Therefore, the possibility of controlling the thermal stability of poly(cyclohexene carbonates) by varying the concentration of the catalyst and the surrounding chemical environment paves the way for the use of these polymers as components in self-sacrificial materials of interest for advanced applications.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1016/j.eurpolymj.2024.113148
- OA Status
- hybrid
- Cited By
- 4
- References
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- Related Works
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- OpenAlex ID
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All OpenAlex metadata
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https://doi.org/10.1016/j.eurpolymj.2024.113148Digital Object Identifier
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Catalyst residues severely impact the thermal stability and degradation mechanism of polycarbonates: How to turn a flaw into an opportunityWork title
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articleOpenAlex work type
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enPrimary language
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2024Year of publication
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2024-05-19Full publication date if available
- Authors
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Riccardo Chiarcos, Katia Sparnacci, Diego Antonioli, C Ivaldi, Valentina Gianotti, Riccardo Pó, Paolo Biagini, Simona Losio, Michele LausList of authors in order
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https://doi.org/10.1016/j.eurpolymj.2024.113148Publisher landing page
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hybridOpen access status per OpenAlex
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https://doi.org/10.1016/j.eurpolymj.2024.113148Direct OA link when available
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Degradation (telecommunications), Mechanism (biology), Thermal stability, Thermal, Turn (biochemistry), Materials science, Chemistry, Biochemical engineering, Chemical engineering, Engineering, Thermodynamics, Physics, Electrical engineering, Biochemistry, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
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2025: 2, 2024: 2Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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