Polymer-bound chiroptical molecular switches; photochemical modification of the chirality of thin films

Article abstract of DOI:10.1002/ijch.199600048

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.