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Updated: Sep 20, 2025
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Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
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Regulating the Thermodynamics and Thermal Properties of Depolymerizable Polycyclooctenes through Substituent Effects
Devavrat Sathe1, Hanlin Chen1, Junpeng Wang1
1School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio, 44325, USA.
Macromolecular Rapid Communications
|June 10, 2022
Summary
Modifying monomer structure in chemically recyclable polymers (CRM) enhances polymerization conversion. Substituents and isomerization of cis-diester to trans-diester improve CRM polymer properties for a circular economy.
Area of Science:
- Polymer Chemistry
- Materials Science
- Sustainable Chemistry
Background:
- Chemical recycling to monomer (CRM) is crucial for a circular polymer economy.
- Understanding monomer structure's influence on polymerization/depolymerization is key for designing effective CRM systems.
- Previous work established CRM polymers via ring-opening metathesis polymerization of trans-cyclobutane fused cyclooctenes (tCBCO).
Purpose of the Study:
- To investigate the impact of cyclobutane substituents on the thermodynamics and thermal properties of tCBCO polymers.
- To explore how structural modifications affect polymerization conversion and material characteristics.
Main Methods:
- Synthesis of functionalized tCBCO monomers with varying substituents.
- Ring-opening metathesis polymerization (ROMP) to create polymers.
- Thermodynamic analysis and thermal property characterization (e.g., DSC, TGA).
Main Results:
- Introducing additional substituents to cis-diester functionalized tCBCO favors polymerization conversion.
- Isomerization of the cis-diester to its trans counterpart also increases polymerization conversion.
- Structural modifications influence the thermal properties of the resulting polymers.
Conclusions:
- Monomer design, including substituent type and stereochemistry (cis/trans isomerization), significantly impacts CRM polymer performance.
- These findings offer insights for designing advanced CRM polymers for enhanced recyclability and tailored thermal properties.
- This research contributes to the development of sustainable polymer solutions for a circular economy.
Keywords:
chemical recycling to monomerring-opening metathesis polymerizationthermodynamics of polymerizationMore Related Videos
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