Journal ArticleDOI
Regional Shape Control of Strategically Assembled Multishape Memory Vitrimers
TLDR
Hot-pressing shape memory vitrimers lead to multishape memory, multifunctionality, easy reconfiguration, and the possibility of mass production of arbitrary smart structures.Abstract:
Hot-pressing shape memory vitrimers lead to multishape memory, multifunctionality, easy reconfiguration, and the possibility of mass production of arbitrary smart structures.read more
Citations
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Journal ArticleDOI
High-performance vitrimers from commodity thermoplastics through dioxaborolane metathesis
Max Rottger,Trystan Domenech,Rob van der Weegen,Antoine J. A. Breuillac,Renaud Nicolaÿ,Ludwik Leibler +5 more
TL;DR: The metathesis of dioxaborolanes is reported, which is rapid and thermally robust, and used to prepare vitrimers from polymers as different as poly(methyl methacrylate), polystyrene, and high-density polyethylene that, although permanently cross-linked, can be processed multiple times by means of extrusion or injection molding.
Journal ArticleDOI
Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations.
TL;DR: This work designs dynamic covalent polymer networks with unique adaptive properties for vitrimeric rheological behavior and solid-state plasticity for this type of material, and suggests a promising future for this class of materials.
Journal ArticleDOI
Thermoset Shape-Memory Polyurethane with Intrinsic Plasticity Enabled by Transcarbamoylation.
TL;DR: It is revealed here that a classical thermoset shape-memory polyurethane is readily capable of permanent reshaping (plasticity) after a topological network rearrangement that is induced by transcarbamoylation.
Journal ArticleDOI
Dynamic Covalent Polymer Networks: A Molecular Platform for Designing Functions beyond Chemical Recycling and Self-Healing.
TL;DR: In this article, the authors provide an overview of the above progress with particular focus on molecular design strategies for the exploitation of functional material properties, and point out the remaining issues and offer perspectives on how this class of materials can shape the future in ways that are complementary with classical thermoplastic and thermoset polymers.
Journal ArticleDOI
Polymer engineering based on reversible covalent chemistry: A promising innovative pathway towards new materials and new functionalities
TL;DR: In this article, a review of reversible covalent polymers is presented, which mainly consists of four parts, involving design and preparation: (i) the basis of reversible Covalent chemistry, (ii) rheology of reversible polymers, (iii) methods of construction of reversible polymer, and (iv) smart, adaptive properties offered by reversible chemistry, including self-healing, reprocessing, solid state recycling, and controllable degradation.
References
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PatentDOI
Shape memory polymers
Robert Langer,Andreas Lendlein +1 more
TL;DR: A very broad, additional spectrum of possible applications for intelligent polymers that covers an area from minimally invasive surgery, through high-performance textiles, up to self-repairing plastic components in every kind of transportation vehicles.
Journal ArticleDOI
Biodegradable, Elastic Shape Memory Polymers for Potential Biomedical Applications
Andreas Lendlein,Robert Langer +1 more
TL;DR: A group of degradable thermoplastic polymers that are able to change their shape after an increase in temperature enables bulky implants to be placed in the body through small incisions or to perform complex mechanical deformations automatically.
Journal ArticleDOI
Silica-Like Malleable Materials from Permanent Organic Networks
TL;DR: In this paper, the authors designed epoxy networks that can rearrange their topology by exchange reactions without depolymerization, and showed that they are insoluble and processable.
Journal ArticleDOI
Shape-memory polymers
Marc Behl,Andreas Lendlein +1 more
TL;DR: Shape-memory polymers as discussed by the authors are an emerging class of active polymers that can change their shape in a predefined way from shape A to shape B when exposed to an appropriate stimulus.
Journal ArticleDOI
Tunable polymer multi-shape memory effect
TL;DR: It is shown that the perfluorosulphonic acid ionomer (PFSA), which has only one broad reversible phase transition, exhibits dual-, triple-, and at least quadruple-shape memory effects, all highly tunable without any change to the material composition.