Chiral polydiacetylene assembles

Herein, the recent progress on the preparation of chiral polydiacetylene (PDA) assembles is reviewed. It is emphasized that chirality of PDA Langmuir-Blodgett (LB) films can be obtained from an achiral azobenzene-substituted diacetylene. Photo-modulation of chiroptical of azobenzene-substituted polydiacetylene LB films, the resulting changes of the optical and other physical properties has been studied in detail. The prospects of the potential applications in the field of photonic devices are also discussed.