Trainable responsive materials have received research interests for future adaptive and intelligent material systems but to date trainable responsive materials only allow one direction of functionality change. Here, the authors demonstrate thermally trainable hydrogel systems consisting of two thermoresponsive polymers, where the volumetric response of the system upon phase transitions enhances or decreases through a training process above a certain threshold temperature.
- Shanming Hu
- Yuhuang Fang
- Hang Zhang
