Thermochromic Sensors: Construction and Molecular Understanding of an Unprecedented, Reversibly Thermochromic Bis‐Polydiacetylene (Adv. Funct. Mater. 24/2014)

A new type of bis-polydiacetylene (PDA), in which two PDAs are linked via an intervening p-phenylene group, displays excellent thermochromic reversibility. Clear blue-to-red and red-to-blue colorimetric transitions are observed by R. Chang, J. Yoon, and co-workers between 20 and 120 °C. The first theoretical simulation of the new PDA is reported on page 3699, the results of which successfully explain the thermochromic reversibility phenomenon.