Polymer‐Bound Chiroptical Molecular Switches; Photochemical Modification of the Chirality of Thin Films

Abstract

Abstract Photobistable chiral polymers were obtained by covalent attachment of inherently dissymmetric 2‐hydroxy‐9‐(7′methyl‐1′,2′,3′,4′‐tetrahydrophenanthrene‐4′‐ylidene)‐9H‐thioxanthene to methacrylate copolymers with appropriate spacers. Upon irradiation at 300 nm the optical activity of thin films of these polymers could be altered.