title: Control of Induced Chirality in Optically Active Poly(N-propargylcarbamate) Films by Solvent Vapor.
abstract: Chiral polyethyne derivatives with lyotropic liquid-crystalline properties are found to be able to self-assemble, forming two chiral organizations with opposite handedness in solid thin films by selection of the casting solvent and its concentration. After the film preparation, chiral organization could also be induced by simple exposure to an appropriate organic solvent's vapor for several minutes without thermal treatment. Furthermore, irreversible inversion of the handedness of the chiral organization in the film could be achieved by exposure to solvent vapor.
authors.affiliation: Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba 305-8565, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Fukushima
authors.forename: Kenji
authors.initials: K
authors.lastname: Tsuchihara