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Polymer actuators based on covalent adaptable networks

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The combination of dynamic covalent chemistry (DCC) with polymeric materials has sparked numerous innovations over the past two decades. One outstanding branch is the application in polymer actuators. Substantial progress has been made in this area regarding novel stimuli-responsive functions, such as intriguing responsiveness, reprogrammable functions, recyclability, and self-healability, more efficient actuator fabrication, new advanced actuation systems, etc. Through reasonable system design and function matching, different DCC strategies have been continuously discovered and employed, creating a variety of polymer actuators with covalent adaptable networks (CANs), which have been smashing the stereotypes of the materials that have already been studied for several decades such as shape memory polymers (SMPs) and liquid crystalline elastomers (LCEs). This review aims to overview the strategies for building polymer actuators based on CANs, how they function, and the advances induced by the introduction of CANs. An outline of CANs, DCC and the strategies on network design will be given at first. Further, we summarize the essential impacts inaugurated by CANs in different kinds of polymer actuators and shape the possible future directions in this sustainably growing field.

Graphical abstract: Polymer actuators based on covalent adaptable networks

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Article information

15 Jan 2020
06 May 2020
First published
14 May 2020

Polym. Chem., 2020, Advance Article
Article type
Review Article

Polymer actuators based on covalent adaptable networks

Y. Wu, Y. Wei and Y. Ji, Polym. Chem., 2020, Advance Article , DOI: 10.1039/D0PY00075B

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