Real-Time Imaging of 2D and 3D Temperature Distribution: Coating of Metal-Ion-Intercalated Organic Layered Composites with Tunable Stimuli-Responsive Properties

Organic layered materials have intercalation and dynamic properties. The dynamic properties are tuned by the intercalation of the guests. In general, however, it is not easy to achieve the homogeneous and thin coating of the layered materials on substrates with complex shapes because of the two-dimensional anisotropic structures. In the present work, the layered organic composites were homogeneously coated on a variety of substrates for application to practical devices. The metal-ion-intercalated layered polydiacetylene (PDA-Mn+) with tunable stimuli-responsive color-change properties was coated on substrates, such as paper and cotton consisting of cellulose fibers. The homogeneous and thin coating of the precursor monomer crystal was achieved on the substrates through the controlled crystal growth. The intercalation and topochemical polymerization generated PDA-Mn+ on the substrates. The PDA-Mn+-coated devices visualized temperature distribution of two-dimensional surface and three-dimensional space in real time.