title: Supramolecular Graft Copolymerization of a Polyester by Guest-Selective Encapsulation of a Self-Assembled Capsule.
abstract: Repeating guest units of polyesters poly-(R)-2 were selectively encapsulated by capsule 1(BF4)4to produce supramolecular graft polymers. The encapsulation of the guest units was confirmed by1H NMR spectroscopy. The graft polymer structures were confirmed by the increase in the hydrodynamic radii and the solution viscosities of the polyesters upon complexation of the capsule. After the capsule was formed, atomic force microscopy showed extension of the polyester chains. The introduction of the graft chains onto poly-(R)-2 resulted in the main chain of the polymer having an M-helical morphology. The complexation of copolymers poly-[(R)-2-co-(S)-2] by the capsule gave rise to the unique chiral amplification known as the majority-rules effect.
authors.affiliation: Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526, Japan.
authors.forename: Yuta
authors.initials: Y
authors.lastname: Tsunoda
authors.affiliation: Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526, Japan.
authors.forename: Mei
authors.initials: M
authors.lastname: Takatsuka
authors.affiliation: Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Sekiya
authors.affiliation: Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526, Japan.
authors.forename: Takeharu
authors.identifier: 0000-0002-0945-2893
authors.initials: T
authors.lastname: Haino
keywords: chiral amplification; majority rules; polymers; supramolecular chemistry