title: Reversible helix-random coil transition of poly(m-phenylenediethynylene) by a rotaxane switch.
abstract: Pendant rotaxane switch-tethering poly(m-phenylene diethynylene) was synthesized by the polyoxidative coupling of a rotaxane containing an axle-terminal m-diethynylbenzene group and an optically active crown ether. The reversible helix-random coil transition of the polymer was successfully performed by the positional switching of the rotaxane wheel.
authors.affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 (H-126), O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
authors.forename: Sakiko
authors.initials: S
authors.lastname: Suzuki
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Ishiwari
authors.forename: Kazuko
authors.initials: K
authors.lastname: Nakazono
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Takata