title: Directed one-pot syntheses of crown ether wheel-containing main chain-type polyrotaxanes with controlled rotaxanation ratios.
abstract: The directed synthesis of main chain-type polyrotaxanes possessing crown ether wheels was successfully achieved through two methods, A and B. Method A involved the direct wheel threading of poly(sec-ammonium salt) followed by end-capping with a bulky group, while method B utilized polyaddition of a pseudo[2]rotaxane monomer to facilitate the control of the structure, i.e. the rotaxanation ratio.
authors.affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan. ttakata@polymer.titech.ac.jp.
authors.forename: Kazuko
authors.initials: K
authors.lastname: Nakazono
authors.forename: Tomonori
authors.initials: T
authors.lastname: Ishino
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Takashima
authors.forename: Daisaku
authors.initials: D
authors.lastname: Saeki
authors.forename: Daisuke
authors.initials: D
authors.lastname: Natsui
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Kihara
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Takata