Results 31 to 40 of about 1,685 (166)
Advanced Functional Materials, EarlyView.A liquid‐crystalline bismaleimide vitrimer integrates local mesogenic organization with exchange‐active ester connectivity, achieving a glass‐transition temperature near 300°C while remaining reprocessable. Stress‐relaxation analysis and temperature‐dependent remolding reveal how segmental mobility, network rearrangement, and structural integrity ...
Woohyeon Kwon +3 more
wiley +1 more source
A fully bio-based polyimine vitrimer derived from fructose [PDF]
, 2019 A bio-based polyimine vitrimer containing 100% renewable carbon content has been synthesised and characterised. This vitrimer material was prepared by combining a bio-based furan dialdehyde obtained from fructose with a bio-based diamine and triamine ...
Avérous, Luc +3 more
core +2 more sources
Advanced Science, 2021 Vitrimers have shown advantages over conventional thermosets via capabilities of dynamic network rearrangement to endow repairability as well as recyclability.
Jungho Joe +10 more
doaj +1 more source
Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams
Advanced Functional Materials, EarlyView.A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek +8 more
wiley +1 more source
Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing
Advanced Functional Materials, EarlyView.This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein +6 more
wiley +1 more source
Strong yet Tough Catalyst-Free Transesterification Vitrimer with Excellent Fire-Retardancy, Durability, and Closed-Loop Recyclability [PDF]
Despite great advances in vitrimer, it remains highly challenging to achieve a property portfolio of excellent mechanical properties, desired durability, and high fire safety.
Zhang, Qi +6 more
core +1 more source
AI‐Guided Inverse Design and Discovery of Recyclable Vitrimeric Polymers
Advanced ScienceVitrimer is a new, exciting class of sustainable polymers with healing abilities due to their dynamic covalent adaptive networks. However, a limited choice of constituent molecules restricts their property space and potential applications.
Yiwen Zheng +8 more
doaj +1 more source
A Degradable and Self-Healable Vitrimer Based on Non-isocyanate Polyurethane
Frontiers 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
A facile alternative strategy of upcycling mixed plastic waste into vitrimers
Communications Chemistry, 2023 Chemical depolymerization has been identified as a promising approach towards recycling of plastic waste. However, complete depolymerization may be energy intensive with complications in purification. In this work, we have demonstrated upcycling of mixed
Kok Wei Joseph Ng +6 more
doaj +1 more source
Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine
Advanced Healthcare Materials, EarlyView.Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi +2 more
wiley +1 more source