自修复聚合物软致动器《Chemical Reviews》

Self-Healing Polymeric Soft Actuators

Sebastian Bonardd*, Mridula Nandi, José Ignacio Hernández García, Binoy Maiti, Alex Abramov, and David Díaz Díaz*

Departamento de Química Orgánica, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez, La Laguna 38206, Tenerife Spain

Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez, La Laguna 38206, Tenerife Spain

Institute of Organic Chemistry, University of Regensburg, Universitätstrasse 31, Regensburg 93053, Germany

Chem. Rev. 2022, XXXX, XXX, XXX-XXX

Publication Date: December 21, 2022

https://doi.org/10.1021/acs.chemrev.2c00418

Abstract

Natural evolution has provided multicellular organisms with sophisticated functionalities and repair mechanisms for surviving and preserve their functions after an injury and/or infection. In this context, biological systems have inspired material scientists over decades to design and fabricate both self-healing polymeric materials and soft actuators with remarkable performance. The latter are capable of modifying their shape in response to environmental changes, such as temperature, pH, light, electrical/magnetic field, chemical additives, etc. In this review, we focus on the fusion of both types of materials, affording new systems with the potential to revolutionize almost every aspect of our modern life, from healthcare to environmental remediation and energy. The integration of stimuli-triggered self-healing properties into polymeric soft actuators endow environmental friendliness, cost-saving, enhanced safety, and lifespan of functional materials. We discuss the details of the most remarkable examples of self-healing soft actuators that display a macroscopic movement under specific stimuli. The discussion includes key experimental data, potential limitations, and mechanistic insights. Finally, we include a general table providing at first glance information about the nature of the external stimuli, conditions for self-healing and actuation, key information about the driving forces behind both phenomena, and the most important features of the achieved movement.

SUBJECTS:

• Actuators,

• Irradiation,

• Light,

• Materials,

• Self healing materials