Supramolecular Helical Structure of the Stereocomplex Composed of Complementary Isotactic and Syndiotactic Poly(methyl methacrylate)s as Revealed by Atomic Force Microscopy

Authors

  • Jiro Kumaki Dr.,

    1. Yashima Super-structured Helix Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 101 Creation Core Nagoya, Shimoshidami, Moriyama-ku, Nagoya 463-0003, Japan, Fax: (+81) 52-739-2084
    Search for more papers by this author
  • Takehiro Kawauchi Dr.,

    1. Yashima Super-structured Helix Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 101 Creation Core Nagoya, Shimoshidami, Moriyama-ku, Nagoya 463-0003, Japan, Fax: (+81) 52-739-2084
    Search for more papers by this author
  • Kento Okoshi Dr.,

    1. Yashima Super-structured Helix Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 101 Creation Core Nagoya, Shimoshidami, Moriyama-ku, Nagoya 463-0003, Japan, Fax: (+81) 52-739-2084
    Search for more papers by this author
  • Hiroshi Kusanagi Dr.,

    1. Yashima Super-structured Helix Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 101 Creation Core Nagoya, Shimoshidami, Moriyama-ku, Nagoya 463-0003, Japan, Fax: (+81) 52-739-2084
    Search for more papers by this author
  • Eiji Yashima Prof.

    1. Yashima Super-structured Helix Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 101 Creation Core Nagoya, Shimoshidami, Moriyama-ku, Nagoya 463-0003, Japan, Fax: (+81) 52-739-2084
    2. Institute for Advanced Research, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan, Fax: (+81) 52-789-3185 http://helix.mol.nagoya-u.ac.jp/
    Search for more papers by this author

  • We are deeply grateful to Professor Atsushi Takahara (Kyushu University) for GIXD measurements.

Abstract

original image

Eine alte Frage in der Polymerchemie wurde durch AFM-Messungen beantwortet, die die helicale Konformation, Händigkeit und Ganghöhe (0.92 nm) des aus einer 1:2-Mischung von it- und st-PMMA erzeugten Stereokomplexes aufzeigten. Die Ergebnisse liefern überzeugende Belege für das Vorliegen einer dreisträngigen Helix (siehe Struktur mit AFM-Bild im Hintergrund).

Ancillary