Preparation of chiral polydiacetylene film from achiral monomers using circularly polarized light

Formation of chiral polydiacetylene (PDA) film using circularly polarized light (CPL) was demonstrated for the first time. Commercially available achiral derivative of diacetylene was used to prepare the vacuum evaporated monomer film and it was polymerized using ultra-violet CPL. Chiral source was only CPL, and the irradiation of left- and right-CPL definitely yielded opposite chiral polymer.