High Energy Dissipation Polymer Gels by Regulating Relaxation of Confined Chains

Damping polymers relying on significant internal friction in glass transition regions can suppress vibrations and noise; however, these materials generally exhibit a narrow damping breadth and severe mechanical instability. Natural damping tissues such as the skin and cartilage achieve high energy dissipation through the combination of viscous fluid and a 3D elastic skeleton. This binary structure inspired a high energy dissipation gel design strategy using synergistic viscoelastic scheme of confined chains and host network. Herein, we provide a comprehensive overview of recent advances in bio-inspired damping polymer gels. The structural designs and their corresponding performances are elucidated in this review. We anticipate that this review will motivate further exploration of design and applications of damping polymers.