Sustainable Polymers

FOCUS · MAR-F67 · ID: MAR-F67

Presentations

  • Invited-In-person · Invited

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    Publication: 1. L.M. Fenimore, B. Chen, and J.M. Torkelson. "Simple upcycling of virgin and wast polyethylene into covalent adaptable networks: Catalyst-free, radical-based reactive processing with dialkylamino disulfide bonds." J. Mater. Chem. A 2022, 10, 24726-24745.

    2. B. Chen, L.M. Fenimore, Y. Chen, S.M. Barbon, H.A. Brown, E. Auyeung, C. Li Pi Shan, J.M. Torkelson. "Novel covalent adaptable networks (CANs) of ethylene/1-octene copolymers (EOCs) made from free-radical processing comparison of structure-property relationships of EOC CANs with..." Polym. Chem. 2023, 14, 3621-3637.

    3. L.M. Fenimore, B. Chen, Y. Chen, S.M. Barbon, H.A. Brown, E. Auyeung, C. Li Pi Shan, J.M. Torkelson. "Covalent adaptable networks and thermosets of multi-black ethylene/1-octene copolymers made by free-radical processing: Effects of melt flow index and crystallinity on..." Eur. Polym. J. 2024, 202, 112661.

    4. T. Debsharma, N.S. Purwanto, L.M. Fenimore, S. Mitchell, J. Kennedy, J.M. Torkelson. "BiTEMPS methacrylate dynamic covalent cross-linker providing rapid reprocessability and extrudability of covalent adaptable networks: High-yield synthesis with strong..." Polym. Chem. 2024, 15, 2167-2176.

    5. L.M. Fenimore, M.J. Suazo, J.M. Torkelson. "Covalent adaptable networks made by reactive processing of highly entangled polymers: Synthesis-structure-thermomechanical property-reprocessing relationship in covalent..." Macromolecules 2024, 57, 2756-2772.

    6. B. Chen, T. Debsharma, L.M. Fenimore, T. Wang, Y. Chen, N.S. Purwanto. "Rapidly Self-Healable and Melt-Extrudable Polyethylene Reprocessable Network Enabled with Dialkylamino Disulfide Chemistry." Macromol. Rapid. Commun. 2024, 45, 2400460.

    7. M.J. Suazo, L.M. Fenimore, S.M. Barbon, H. Brown, E. Auyeung, G. Cespedes, C. Li Pi Shan, J.M. Torkelson. "Extrudable and highly creep-resistant covalent adaptable networks made from polyethylene and ethylene/1-octen copolymers by reactive processing with aromatic disulfide cross-links." ACS Appl. Polym. Mater. 2024, 6, 14772-14783.

    8. Y.-W. Huang, M.J. Suazo, S.M. Barbon, H.A. Brown, E. Auyeung, C. Li Pi Shan, J.M. Torkelson. "Propylene covalent adaptable networks with full cross-link density recovery after reprocessing: Development by free-radical reactive processing with resonance-stabilized..." ACS Macro Lett. 2025, 14, 341-348.

    9. Y.-W. Huang, M.J. Suazo, J.M. Torkelson. "Reprocessable Polypropylene Covalent Adaptable Networks via Free-Radical Reactive Processing with Vinyl Aromatic Additives." Macromolecules 2025, 58, 4847-4859.

    10. Y.-W. Huang, M.J. Suazo, S.M. Barbon, H.A. Brown, E. Auyeung, C. Li Pi Shan, J.M. Torkelson. "Propylene-Ethylene Copolymer Covalent Adaptable Networks Synthesized by Resonance-Stabilized, Radical-Based Reactive Processing with Excellent Elevated-Temperature Creep Resistance." ChemSusChem 2025, asap article, 2501137.

    11. L.M. Fenimore, M.J. Suazo, S. Mitchell, H. Mohammadi, K. Miller McLoughlin, C. Gassaschun, P. Sewruk, M. Busch, J.M. Torkelson. "Fully Recyclable and Remarkably Robust Cross-Linked Polyethylene Networks via Direct Free-Radical Copolymerization with Disulfide Dynamic Covalent Bonds." J. Am. Chem. Soc. 2025, 147, 27179-27185.

    12. L.M. Fenimore, M.J. Suazo, B. Chen, S.M. Barbon, H.A. Brown, E. Auyeung, C. Li Pi Shan, J.M. Torkelson. "Recyclable Ethylene-Vinyl Acetate Covalent Adaptable Networks and Their Structure Property Relationships." Macromolecules 2025, 58, 9494-9503.

    Presenters

    • John Torkelson

      • Northwestern University

    Authors

    • John Torkelson

      • Northwestern University

    View abstract →

  • Oral-In-person

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    Presenters

    • McKenzie Coughlin

      • National Institute of Standards and Technology (NIST)

    Authors

    • McKenzie Coughlin

      • National Institute of Standards and Technology (NIST)

    • CARLOS LOPEZ-BARRON

      • ExxonMobil Chemical Company

    • Anthony Kotula

      • National Institute of Standards and Technology (NIST)

    • Kalman Migler

      • National Institute of Standards and Technology (NIST)

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  • Oral-In-person

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    Publication: (1) Xu, J.; Tsai, C.-C.; Nordness, O.; Xie, S. Counterion-Free Ionic Associating Polymers: In Situ Ionization and Coupling of Alkyl Sulfonate Precursors. Macromolecules 2025. https://doi.org/10.1021/acs.macromol.5c01487.

    Presenters

    • Jie Xu

      • Texas A&M University

    Authors

    • Jie Xu

      • Texas A&M University

    • Shuyi Xie

      • Texas A&M University College Station

    View abstract →