Results 151 to 160 of about 24,910 (256)

Thermoresistive Sensors Based on Eco‐Friendly Carbon Dioxide‐Derived Polymeric Poly(Cyclohexene)carbonate Loaded With Reduced Graphene Oxide and Carbon Black

open access: yesPolymer Engineering &Science, EarlyView.
Thermoresistive sensing materials derived from eco‐friendly polymers for broad‐range temperature measurements. ABSTRACT Carbon dioxide‐derived polycarbonates (CO2‐PCs) present a sustainable alternative to standard bisphenol A polycarbonates (BPA‐PCs), as they are synthesized from the reaction between epoxide and carbon dioxide (CO2). In fact, these eco‐
Ane Martín‐Ayerdi   +7 more
wiley   +1 more source

Extension of Isoconversional Analysis to Diffusion‐Controlled Epoxy Cure Kinetics: Comparison With Model‐Fitting Approaches

open access: yesPolymer Engineering &Science, EarlyView.
Extending isoconversional analysis of DSC data to diffusion‐controlled regimes captures the rise in apparent activation energy upon vitrification and yields TTT diagrams of RTM6 epoxy resin that remain accurate when diffusion, rather than chemistry, governs the cure rate.
Didina‐Ramona‐Casandra Cârstea   +5 more
wiley   +1 more source

Advances in conjugated porous polymers via high internal phase emulsion templating

open access: yesPolymer International, EarlyView.
This mini‐review highlights the design, synthesis and potential applications of π‐conjugated polyHIPEs, emphasizing their unique hierarchical structure and tunable properties. The work outlines innovative synthetic strategies and explores their promising roles in photocatalysis and environmental remediation, paving the way for future advancements in ...
Julie‐Lisa Malaval   +4 more
wiley   +1 more source

Viscoelastic Modeling of Stress Relaxation in Model High‐Performance Covalent Adaptable Networks

open access: yesJournal of Polymer Science, EarlyView.
Covalent adaptable networks, often referred to as vitrimers, contain a certain fraction of bonds that are able to exchange with other bonds. The ability of this bond exchange to relax stress or result in flow of the material depends on the concentration and specific concentration of these bonds in ways that can be quantified.
Broderick Lewis   +4 more
wiley   +1 more source

Curing Behavior and Adhesion Performance of a One‐Component Epoxy Resin Based on a Dual‐Locked Thermal Latent Curing Agent

open access: yesJournal of Polymer Science, EarlyView.
In this study, curing behavior of epoxy resins using a dual‐locked thermal latent curing agent (DCA) was analyzed using DSC and FT‐NIR. The DCA was successfully dissolved in the bisphenol A type epoxy resin (DGEBA). Furthermore, the prepared one‐component epoxy resin was used as an adhesive and achieved excellent adhesive strength (> 25 MPa).
Yukai Ito, Daisuke Aoki, Koji Arimitsu
wiley   +1 more source

Comparison of Calorimetry and NMR Relaxometry Measurements of Epoxy Cure Kinetics

open access: yesJournal of Polymer Science, EarlyView.
Single‐sided NMR monitors epoxy cure in three DGEBA/diamine systems, alongside benchmark DSC measurements. Fitting both datasets to a Kamal‐Malkin kinetic model shows NMR‐derived rate constants typically exceed DSC values, revealing an offset between gelation and chemical conversion.
Olivia Cassara   +4 more
wiley   +1 more source

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