Results 11 to 20 of about 1,864 (182)

Detecting topology freezing transition temperature of vitrimers by AIE luminogens [PDF]

open access: yesNature Communications, 2019
Detecting and understanding the topology freezing transition temperature of vitrimers has been very limited in the past. Here the authors use a sensitive and universal method by doping or swelling aggregation-induced-emission luminogens into vitrimers as
Yang Yang   +5 more
doaj   +2 more sources

Rheology of vitrimers [PDF]

open access: yesNature Communications, 2022
Rheology studies on vitrimers have mostly focused on their linear viscoelasticity under small deformations. Here, the authors develop a full rheological understanding of vitrimer response that spans between small deformation and large-deformation regime,
Fanlong Meng   +2 more
doaj   +6 more sources

High-Performance Bio-Based Epoxy Vitrimers and Composites: Synergizing Robustness and Reprocessability via Fractional Free Volume Regulation. [PDF]

open access: yesAdv Sci (Weinh)
In this work, two bio‐based epoxy monomers were designed to tune the dynamic network of a rigid–flexible hybrid epoxy through free‐volume control, achieving a synergy among high free volume, high cross‐linking density, and segmental mobility while balancing strength and toughness.
Dong K, Zhao D, Zhao C.
europepmc   +2 more sources

Architectured Silicone Vitrimers with Light-Tunable Mechanical and Self-Healing Behavior [PDF]

open access: yes, 2023
Architectured materials synergistically harness chemical and microstructural features to create monoliths with antagonistic properties. Although it is a hallmark of biological composites, this material design concept has only recently been applied to ...
Stefano, Menasce   +2 more
core   +1 more source

Epoxy-polyhedral oligomeric silsesquioxanes (POSS) nanocomposite vitrimers with high strength, toughness, and efficient relaxation

open access: yesGiant, 2020
Although considerable progress has been made in developing vitrimers, on-going challenges for vitrimers for high-performance applications include the improvement in mechanical properties and identification of more efficient exchange reactions.
Hongkun Yang   +3 more
doaj   +1 more source

Vitrimers

open access: yes, 2023
Bakalářská práce pojednává o relativně nových materiálech označovanými jako vitrimery. Vitrimery jsou sesíťované materiály s dynamickými kovalentními vazbami, které jim umožňují být zpracovány jako termoplasty.
Ševčíková, Kateřina
core   +2 more sources

Vitrimer synthesis from recycled polyurethane gylcolysate

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Polyurethanes and plastics have become ubiquitous in modern society, finding use in a wide variety of applications such as clothing, automobiles, and shoes.
Yu-Hsuan Lin   +3 more
doaj   +1 more source

A Degradable and Self-Healable Vitrimer Based on Non-isocyanate Polyurethane

open access: yesFrontiers in Chemistry, 2020
Developing degradable and self-healable elastomers composed of reusable resources is of great value but is rarely reported because of the undegradable molecular chains.
Haitao Wu   +6 more
doaj   +1 more source

Microscopic Dynamics and Viscoelasticity of Vitrimers

open access: yes, 2022
We implement a hybrid molecular dynamics/Monte Carlo simulation to study the microscopic dynamics and the macroscopic rheology of vitrimers with a fast bond exchange rate.
Alessandro Perego (380031)   +3 more
core   +2 more sources

Sugarcane Bagasse-Derived Activated Carbon- (AC-) Epoxy Vitrimer Biocomposite: Thermomechanical and Self-Healing Performance

open access: yesInternational Journal of Polymer Science, 2021
Vitrimeric materials have emerged as fascinating and sustainable materials owing to their malleability, reprocessability, and recyclability. Sustainable vitrimeric materials can be prepared by reinforcing polymeric matrix with bioderived fillers.
Balaji Krishnakumar   +10 more
doaj   +1 more source

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