Results 151 to 160 of about 26,006 (279)

Reprocessable and Repairable Bio‐Based Vitrimers From Acrylated Epoxidized Rapeseed Oil for Additive Manufacturing

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 6, June 2026.
Bio‐based UV‐curable vitrimer resins derived from acrylated epoxidized rapeseed oil enable reprocessable and repairable thermosets for vat photopolymerization. Catalyst‐free and Zn‐based systems reveal tunable stress relaxation and mechanical recovery. Remarkably, repaired 3D‐printed parts exceed original strength, highlighting dynamic bond exchange as
Sabine Greivule   +3 more
wiley   +1 more source

Consequences of Monomer Impurities on Network Characteristics and Dynamic Mechanical Behavior of an Eugenol‐Based Covalent Adaptable Network

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 6, June 2026.
How robust is the dynamic exchange behavior of covalent adaptable networks (CAN) toward monomer impurities? This study simulates the unnoticed incorporation of a monomer impurity into a CAN and determines the consequences for synthesis and network characteristics, focusing especially on the dynamic mechanical behavior at both the micro‐ and macroscale.
Robin Tannert   +2 more
wiley   +1 more source

Metathesis‐Sourced Epoxides in Ring‐Opening Copolymerization: Selective Access to Degradable Polythioesters

open access: yesMacromolecular Rapid Communications, Volume 47, Issue 11, 5 June 2026.
Metathesis‐derived cyclopentene epoxides enable strictly alternating, scrambling‐free ring‐opening copolymerization with phthalic thioanhydride, yielding well‐defined polythioesters with molecular weights up to ∼38 kg/mol. Their performance extends to oxygen‐based anhydrides and selective terpolymerizations. Direct comparisons with all‐oxygen analogues
Niracha Tangyen   +3 more
wiley   +1 more source

Valorization of Poplar Wood Wastes Into 3D‐Printed Soya Oil‐Based Composites by Vat Photopolymerization for Interior Design

open access: yesJournal of Polymer Science, Volume 64, Issue 11, Page 2351-2367, 1 June 2026.
Bio‐based polymer composites were 3D printed by LCD vat photopolymerization using acrylate epoxidized soybean oil as the monomer and isobornyl methacrylate as the reactive diluent. Two different poplar powders derived from plywood processing waste were incorporated within the photocurable formulations.
Francesca Sacchi   +7 more
wiley   +1 more source

Dimethyldioxirane Epoxidation of Flavones

open access: yes, 1991
Various flavones 1 were converted in excellent yields to the hitherto unknown corresponding epoxides 3 by epoxidation with dimethyldioxirane at subambient temperatures.Tetrahedron ...
Golsch, D.   +3 more
core  

Benzofuran‐Based Uricosuric Agents: History, Roles, and Challenges

open access: yesChemistrySelect, Volume 11, Issue 24, 25 June 2026.
Benzofuran‐based uricosuric agents represent a privileged medicinal chemistry scaffold for gout therapy. Structural optimization of benzbromarone‐related derivatives has improved hURAT1 inhibitory potency, metabolic stability, and urate‐lowering efficacy, while reducing hepatotoxic liability.
Raed M. Al‐Zoubi   +7 more
wiley   +1 more source

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