High color stability and reversible thermochromism of polydiacetylene/zinc oxide nanocomposite in various organic solvents and polymer matrices

- Polydiacetylene/zinc oxide (PDA/ZnO) nanocomposites are dispersed in various organic solvents.
- PDA/ZnO nanocomposites remain blue and still exhibit reversible thermochromism.
- PDA/ZnO nanocomposites can be embedded in poly(styrene), poly(methyl methacrylate), poly(ethylene) and poly(vinyl alcohol) films.
- Complete color reversibility of some systems persists up to 200 °C.
- Our result can largely extend the utilization of PDA-based materials.