Anhydride-Based Reconfigurable Shape Memory Elastomers

Lawton, Melodie I.; Tillman, Kelly R.; Mohammed, Halimatu S.; Kuang, Wenbin; Shipp, Devon A.; Mather, Patrick T.

doi:10.1021/acsmacrolett.5b00854

Cited by 70 publications

(69 citation statements)

References 28 publications

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“…Without the origami and kirigami shape manipulation, Mather's group demonstrated a SMP composite with permanent shape reconfigurability by exploiting anhydride exchange, which represents yet another largely unrecognized dynamic bond. The shape memory composite was made by encapsulating an electrospun PCL fiber mat into a soft polyanhydride elastomeric matrix.…”

Section: Materials Innovations Via Covalent Bond Exchangementioning

confidence: 99%

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

et al. 2017

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Dynamic covalent polymer networks have long been recognized. With the initial focus on the unintended impact of dynamic covalent linkages on the viscoelasticity of commercial rubbers, efforts in modern times have transitioned into designing dynamic covalent polymer networks with unique adaptive properties. Whereas self-healing and thermoset reprocessing have been the primary motivations for studying dynamic covalent polymer networks, the recent discovery of the vitrimeric rheological behavior and solid-state plasticity for this type of material have opened up new opportunities in material innovations. This, coupled with the revelation of the dynamic characteristics of commercially relevant polymer building blocks such as esters and urethanes, suggests a promising future for this class of materials.

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Section: Materials Innovations Via Covalent Bond Exchangementioning

confidence: 99%

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

et al. 2017

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“…reported fully degradable SMPCs based on a polyanhydride elastomer and PU-PCL electrospun fibres, as the fixation phase, allowing the control of the reconfiguration and triggering of shape recovery [23]. However, these materials are limited to simple geometries that can be generated using electrospun fibres deposited on a substrate and subsequently impregnated within a polyanhydride matrix.…”

Section: Biocompatible and Degradable Smps Have Been Developed Using mentioning

confidence: 99%

Tunable and processable shape memory composites based on degradable polymers

Zhang

Geven²,

Grijpma³

et al. 2017

Polymer

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Biodegradable shape memory polymers are attractive materials for the design of biomedical scaffolds as they allow deploying implants remotely with minimal intervention, whilst allowing degradation and tissue repair. However, shape memory properties are difficult to design from common degradable polymers, without chemical modifications. Here were developed readily tunable processable shape memory polymer composites (SMPCs) based on established degradable polymers in the biomedical field (poly(trimethylene carbonate) (PTMC) and poly(lactic acid) (PLA) fibres). These SMPCs rely on the glass-rubber transition of the PLA network to trigger shape recovery, whilst the elastic PTMC matrix optimises the full recovery of the scaffold to permanent shape. We demonstrate the performance of SMPCs can be readily designed by adjusting the loading and processing of the fibre network, or through the addition of plasticising poly(ethylene glycol) chains. Importantly, we demonstrate that the use of cut fibres allows the solution processing of SMPCs, which should enable the design of potentially degradable shape memory 3D scaffolds with complex shapes.

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“…Considerable research has been devoted to the development of novel BSMP formulations that have the potential for use in medicine. For recent examples we direct the reader to the following references . In the Becker lab, we have developed amino acid‐based poly(ester urea)s (PEUs) and explored their shape memory behavior .…”

Section: Future and Outlookmentioning

confidence: 99%

Biodegradable Shape Memory Polymers in Medicine

Peterson

Dobrynin

Becker

2017

Adv Healthcare Materials

157

155

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Shape memory materials have emerged as an important class of materials in medicine due to their ability to change shape in response to a specific stimulus, enabling the simplification of medical procedures, use of minimally invasive techniques, and access to new treatment modalities. Shape memory polymers, in particular, are well suited for such applications given their excellent shape memory performance, tunable materials properties, minimal toxicity, and potential for biodegradation and resorption. This review provides an overview of biodegradable shape memory polymers that have been used in medical applications. The majority of biodegradable shape memory polymers are based on thermally responsive polyesters or polymers that contain hydrolyzable ester linkages. These materials have been targeted for use in applications pertaining to embolization, drug delivery, stents, tissue engineering, and wound closure. The development of biodegradable shape memory polymers with unique properties or responsiveness to novel stimuli has the potential to facilitate the optimization and development of new medical applications.

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Anhydride-Based Reconfigurable Shape Memory Elastomers

Cited by 70 publications

References 28 publications

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

Tunable and processable shape memory composites based on degradable polymers

Biodegradable Shape Memory Polymers in Medicine

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