Results 61 to 70 of about 1,685 (166)

Recyclable and Degradable Covalent Adaptable Polymer Networks (CANs) Based on Dynamic Thiol–Yne Reactions

Journal of Applied Polymer Science, EarlyView.
Covalent adaptable networks based on activated alkynes, that is, alkynones, and multifunctional thiols (three and tetrafunctional) are tested in two different recycling strategies: (i) mechanical recycling based on their vitrimeric properties and (ii) chemical recycling based on the reversible thiol addition on the vinylene compound.
Farhad Shohraty, Michael F. Agyemang, Michael Klein, Stefan Zechel, Michael Schmitt, Jürgen Popp, Martin D. Hager   +6 more
wiley   +1 more source

Design principles for vitrimers: Linking dynamic covalent chemistry, network architecture, and engineering performance

Bulletin of the Korean Chemical Society, EarlyView.
This review examines vitrimer performance from a broader perspective, considering not only dynamic covalent chemistry but also molecular structure, network architecture, and rheological behavior. These factors are discussed in relation to service and processing windows, reprocessing, repair, and engineering applications, providing a multiscale ...
Kyosun Ku, Hyeonuk Yeo
wiley   +1 more source

Rice husk cellulose fiber-derived vitrimers: dynamic covalent network design via transesterification exchange with hierarchical structure preservation

Materials & Design
Bio-based vitrimers have gained considerable attention for their potential to replace fossil derived plastics, address end-of-life recycling issues through dynamic covalent chemistry, and ultimately align materials science with sustainable development ...
Yu Huang, Xingping Zuo, Jinhan Wang, Weixing Xu, Yunhang Zeng, Bi Shi, Jian Zhou   +6 more
doaj   +1 more source

Theoretical Framework for Predicting Dynamic Covalent Exchange Based on Proton Affinities and Proton‐Transfer Assistance

Chemistry – A European Journal, EarlyView.
Proton‑transfer catalysis controls acylsemicarbazide dissociation, linking proton affinity to exchange kinetics and enabling predictive design of robust, tunable dynamic covalent networks. ABSTRACT We provide design principles for predicting bond exchange kinetics in acylsemicarbazide (ASC)‐based systems that can be applied to tuning the properties of ...
Siebe Lekanne Deprez, Stefan J. D. Maessen, Angelina N. van Dam, Celine Nieuwland, Pascal Vermeeren, Anja R. A. Palmans, Célia Fonseca Guerra   +6 more
wiley   +1 more source

VITRIMER RESIN DEVELOPMENT FOR AERONAUTICAL APPLICATION

, 2023
Due to the environmental challenges the aeronautical industry is facing, the development of recyclable aeronautical chemistries have recently raised huge interest. Within this context, different alternatives are being considered with the aim of obtaining
Markaide*, N., Puerto*, E., Luzuriaga, A., Salaberria, A., Blanco, T.   +4 more
core  

Biobased Epoxidized Castor Oil Covalent Adaptable Networks Adhesives Reinforced with Recycled Carbon Fibers

Macromolecular Rapid Communications, EarlyView.
It is reported the design of biobased sustainable, smart, and functional adhesives achieved dispersing recycled carbon fibers into biobased epoxy monomer. ABSTRACT The development of sustainable, smart, and functional adhesives is crucial in advancing environmentally friendly materials.
Alberto Cellai, Rafael Turra Alarcon, Bernhard Sölle, Elisabeth Rossegger, Valentina Casalegno, Milena Salvo, Marco Sangermano   +6 more
wiley   +1 more source

Polycarbonate Vitrimers and Dynamic Co‐Networks From Epoxide/Carbon Dioxide Copolymerization

Macromolecular Rapid Communications, EarlyView.
This work demonstrates how CO2‐derived poly(propylene carbonate) and poly(cyclohexene carbonate) backbones influence vitrimer thermo‐mechanical behavior. By tuning backbone composition, epoxide crosslinker chemistry and blend ratios, the crosslinked materials span a wide property window, from highly extensible to stiff, glassy networks, establishing an
Satej S. Joshi, Sophia Aracri, Mark D. Foster, James M. Eagan   +3 more
wiley   +1 more source

Sustainable and mass-producible epoxy vitrimer-based gel polymer electrolytes

Nano Research
With the growing demand for high-energy-density energy storage devices, lithium metal batteries (LMBs) using lithium metal as anodes have emerged as promising candidates.
Guojie Xu, Yuhang Tian, Yuting Wang, Mingrui Wu, Xinyu Zhao, Yen Wei, Jianlong Wang, Xiangming He, Eugene M. Terentjev, Pengfei Cao, Yang Yang   +10 more
doaj   +1 more source

Polymeric Polyaldehyde Approach to Develop Robust Dynamic Covalent Adaptive Polyimine Networks

Macromolecular Rapid Communications, EarlyView.
A versatile approach exploring the synthesis of polymeric polyaldehydes with a polyacrylate backbone bearing pendant aldehyde groups to develop dynamic polyacrylate‐polyimine hybrid materials capable of the built‐in ability for extended operation and enhanced reliability. ABSTRACT Polyimine‐based covalent adaptive networks crosslinked with Schiff bases
Subrata Dolui, Sofia Nieves Casillas‐Popova, Seung Ki Lee, Sun Ju Kim, Hira Rasheed, Zhibin Ye, Minsoo P. Kim, Hyun Wook Jung, Jung Kwon Oh   +8 more
wiley   +1 more source

A Chemically Recyclable 1,3,5‐Triazine‐Based Epoxy Thermoset Enabled by Nucleophilic Aromatic Substitution Reaction

Macromolecular Rapid Communications, EarlyView.
High‐performance 1,3,5‐triazine epoxy networks are prepared via solvent‐free curing and recycled using nucleophilic aromatic substitution (SNAr) chemistry. This robust thermoset undergoes clean depolymerization into well‐defined building blocks for seamless repolymerization, achieving chemical recycling while preserving thermomechanical performance ...
Yi‐Ru Chen, Fabian Eisenreich, A. Catarina C. Esteves, Željko Tomović   +3 more
wiley   +1 more source