BiTEMPS methacrylate dynamic covalent cross-linker providing rapid reprocessability and extrudability of covalent adaptable networks: high-yield synthesis with strong selectivity for disulfide linkages

Tapas Debsharma, Nathan S. Purwanto, Logan M. Fenimore, Sarah Mitchell, Jayme Kennedy and John M. Torkelson

Polym. Chem., 2024, 15, 2167
DOI: 10.1039/D4PY00160E

Covalent Adaptable Networks and Thermosets of Multi-block Ethylene/1-Octene Copolymers Made by Free-Radical Processing: Effects of Melt Flow Index and Crystallinity on Thermomechanical Properties and Reprocessability

Logan M. Fenimore, Boran Chen, Yixuan Chen, Stephanie M. Barbon, Hayley A. Brown, Evelyn Auyeung, Colin Li Pi Shan and John M. Torkelson

SSRN Journal, 2023
DOI: 10.2139/ssrn.4650814

Reprocessable Polymer Networks Containing Sulfur‐Based, Percolated Dynamic Covalent Cross‐Links and Percolated or Non‐Percolated, Static Cross‐Links

Logan M. Fenimore, Mohammed A. Bin Rusayyis, Claire C. Onsager, Matthew A. Grayson and John M. Torkelson

Macromol. Rapid Commun., 2024
DOI: 10.1002/marc.202400303

New Advances in Covalent Network Polymers via Dynamic Covalent Chemistry

Zepeng Lei, Hongxuan Chen, Shaofeng Huang, Lacey J. Wayment, Qiucheng Xu and Wei Zhang

Chem. Rev., 2024, 124, 7829
DOI: 10.1021/acs.chemrev.3c00926

Covalent Adaptable Networks with Associative Siloxane Exchange Enabled by Amide‐Based Internal Catalysis: Designing for Reprocessability and Extrudability by Increasing the Cross‐Link Density

Nathan S. Purwanto, Tong Wang, Xiaoyang Liu, Linda J. Broadbelt, Tapas Debsharma and John M. Torkelson

Adv Funct Materials, 2025
DOI: 10.1002/adfm.202507313

Reprocessable Polypropylene Covalent Adaptable Networks via Free-Radical Reactive Processing with Vinyl Aromatic Additives

Yen-Wen Huang, Mathew J. Suazo and John M. Torkelson

Macromolecules, 2025, 58, 4847
DOI: 10.1021/acs.macromol.5c00568

Direct and Reversible Transformations between Intermolecular Polymer Networks and Single-Chain Nanoparticles Based on Thermally Dissociable Bis(hindered amino)disulfide Linkages

Gota Tomono, Hirogi Yokochi, Akira Takahashi, Daisuke Aoki and Hideyuki Otsuka

Macromolecules, 2024, 57, 6362
DOI: 10.1021/acs.macromol.4c00359

Increasing the cross-link density in a dual dissociative and associative polythiourethane covalent adaptable network improves both creep resistance and extrudability

Sergio Serna, Nathan S. Purwanto, Logan M. Fenimore and John M. Torkelson

Polymer, 2024, 306, 127232
DOI: 10.1016/j.polymer.2024.127232

Fully Recyclable and Remarkably Robust Cross-Linked Polyethylene Networks via Direct Free-Radical Copolymerization with Disulfide Dynamic Covalent Bonds

Logan M. Fenimore, Mathew J. Suazo, Sarah Mitchell, Hadi Mohammadi, Kimberly Miller McLoughlin, Cassandra Gallaschun, Patryk Sewruk, Markus Busch and John M. Torkelson

J. Am. Chem. Soc., 2025, 147, 27179
DOI: 10.1021/jacs.5c07720

Extrudable and Highly Creep-Resistant Covalent Adaptable Networks Made from Polyethylene and Ethylene/1-Octene Copolymers by Reactive Processing with Aromatic Disulfide Cross-Links

Mathew J. Suazo, Logan M. Fenimore, Stephanie M. Barbon, Hayley Brown, Evelyn Auyeung, Gerardo Cespedes, Colin Li Pi Shan and John M. Torkelson

ACS Appl. Polym. Mater., 2024, 6, 14772
DOI: 10.1021/acsapm.4c02969

Recyclable Ethylene-Vinyl Acetate Covalent Adaptable Networks and Their Structure–Property Relationships

Logan M. Fenimore, Mathew J. Suazo, Boran Chen, Stephanie M. Barbon, Hayley A. Brown, Evelyn Auyeung, Colin Li Pi Shan and John M. Torkelson

Macromolecules, 2025
DOI: 10.1021/acs.macromol.5c01213

Biobased, reprocessable, self-blown non-isocyanate polyurethane foams: Influence of blowing agent structure and functionality

Nathan S. Purwanto, Yixuan Chen and John M. Torkelson

European Polymer Journal, 2024, 206, 112775
DOI: 10.1016/j.eurpolymj.2024.112775

Rapidly Self‐Healable and Melt‐Extrudable Polyethylene Reprocessable Network Enabled with Dialkylamino Disulfide Dynamic Chemistry

Boran Chen, Tapas Debsharma, Logan M. Fenimore, Tong Wang, Yixuan Chen, Nathan S. Purwanto and John M. Torkelson

Macromol. Rapid Commun., 2024, 45
DOI: 10.1002/marc.202400460

Propylene–Ethylene Copolymer Covalent Adaptable Networks Synthesized by Resonance‐Stabilized, Radical‐Based Reactive Processing with Excellent Elevated‐Temperature Creep Resistance

Yen‐Wen Huang, Mathew J. Suazo, Stephanie M. Barbon, Hayley A. Brown, Evelyn Auyeung, Colin Li Pi Shan and John M. Torkelson

ChemSusChem, 2025
DOI: 10.1002/cssc.202501137

Tunable Mechanical and Dynamic Properties via Cross‐Linker Length in Bis(hindered amino)Disulfide‐Based Covalent Adaptable Networks

Sae Sakamoto, Daisuke Aoki, Akira Takahashi and Hideyuki Otsuka

Macromol. Rapid Commun., 2025
DOI: 10.1002/marc.202500522

Reprocessable, Self-Healing, and Creep-Resistant Covalent Adaptable Network Made from Chain-Growth Monomers with Dynamic Covalent Thionourethane and Disulfide Cross-Links

Tong Wang, Yixuan Chen, Boran Chen, Mathew J. Suazo, Nathan S. Purwanto and John M. Torkelson

ACS Macro Lett., 2024, 13, 1147
DOI: 10.1021/acsmacrolett.4c00391

Covalent adaptable networks and thermosets of multi-block ethylene/1-octene copolymers made by free-radical processing: Effects of melt flow index and crystallinity on thermomechanical properties and reprocessability

Logan M. Fenimore, Boran Chen, Yixuan Chen, Stephanie M. Barbon, Hayley A. Brown, Evelyn Auyeung, Colin Li Pi Shan and John M. Torkelson

European Polymer Journal, 2024, 202, 112661
DOI: 10.1016/j.eurpolymj.2023.112661

Biobased Cyclic Polycarbonate: Synthesis and Applications via Dynamic Bis(hindered amino)disulfide Linkers

Hirogi Yokochi, Takumi Abe, Shunsuke Fujimata, Daisuke Aoki and Hideyuki Otsuka

ACS Macro Lett., 2025, 14, 750
DOI: 10.1021/acsmacrolett.5c00233

Covalent Adaptable Networks Made by Reactive Processing of Highly Entangled Polymer: Synthesis-Structure-Thermomechanical Property-Reprocessing Relationship in Covalent Adaptable Networks

Logan M. Fenimore, Mathew J. Suazo and John M. Torkelson

Macromolecules, 2024, 57, 2756
DOI: 10.1021/acs.macromol.3c02515

Polypropylene Covalent Adaptable Networks with Full Cross-Link Density Recovery after Reprocessing: Development by Free-Radical Reactive Processing with Resonance-Stabilized, Aromatic Disulfide Cross-Linkers

Yen-Wen Huang, Mathew J. Suazo, Stephanie M. Barbon, Hayley A. Brown, Evelyn Auyeung, Colin Li Pi Shan and John M. Torkelson

ACS Macro Lett., 2025, 14, 341
DOI: 10.1021/acsmacrolett.5c00061