Results 21 to 30 of about 2,892,281 (231)

Characterization Techniques to Assess Recyclability in Dynamic Polymer Networks

open access: yesFrontiers in Materials, 2022
The inclusion of dynamic covalent bonds in cross-linked polymer networks enables material reprocessing towards a circular economy. Bond dynamicity in this class of materials, called covalent adaptable networks (CANs), is characterized by a mixture of ...
André B. Lagron   +2 more
doaj   +1 more source

Incorporating Functionalized Cellulose to Increase the Toughness of Covalent Adaptable Networks [PDF]

open access: yes, 2020
Covalent adaptable networks (CANs) are cross-linked polymers that have mechanical properties similar to thermosets at operating conditions, yet can be reprocessed by cross-link exchange reactions that are activated by a stimulus.
Jeremy, Swartz, William, Dichtel
core   +2 more sources

Adaptable covalently cross-linked fibers

open access: yesNature Communications, 2023
Fibers, with over 100 million tons produced each year, have been widely used in various areas. Recent efforts have focused on improving mechanical properties and chemical resistance of fibers via covalent cross-linking.
Hui Tan   +5 more
doaj   +1 more source

Adaptable Phosphate Networks towards Robust, Reprocessable, Weldable, and Alertable-Yet-Extinguishable Epoxy Vitrimer

open access: yesResearch, 2022
Covalent adaptable networks (CANs) combine the uniqueness of thermoplastics and thermosets to allow for reprocessability while being covalently crosslinked.
Jia-Hui Lu   +8 more
doaj   +1 more source

A facile strategy to achieve polyurethane vitrimers from chemical recycling of poly(carbonate)

open access: yesChemical Engineering Journal Advances, 2022
Polyurethane vitrimers (PUVs) incorporating urethane reversion covalent adaptable networks are usually limited by the use of aliphatic alcohol for carbamate groups, resulting in high activation energy for bond exchange.
Shi-Wen Chen   +5 more
doaj   +1 more source

In-situ forming dynamic covalently crosslinked nanofibers with one-pot closed-loop recyclability

open access: yesNature Communications, 2023
Polymeric nanofibers are attractive nanomaterials owing to their high surfacearea- to-volume ratio and superior flexibility but designing durable and recyclable polymer nanofibers is challenging.
Sheng Wang   +10 more
doaj   +1 more source

Intrinsic self-healing rubber: A review and perspective of material and reinforcement

open access: yesPolymer Testing, 2022
Self-healing rubbers have been widely developed by introducing reversible dynamic crosslinked networks into rubber so that it can repair mechanical damage automatically without requiring any manual intervention.
Noor Faezah Mohd Sani   +4 more
doaj   +1 more source

Structural reversible adhesives based on thiol-epoxy vitrimers

open access: yesPolymer Testing, 2023
This work presents a family of functional adhesives based on covalent adaptable networks (CANs). Low-cost and commercially available monomers, including diglycidyl ether of bisphenol A, pentaerythritol tetrakis (3-mercapto propionate) and ...
Adrià Roig   +4 more
doaj   +1 more source

Renewable and recyclable covalent adaptable networks based on bio-derived lipoic acid. [PDF]

open access: yesPolym Chem, 2021
The modern materials economy is inefficient since most products are principally derived from non-renewable feedstocks and largely single-use in nature.
Alraddadi MA   +4 more
europepmc   +2 more sources

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