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

Kumaki Jiro | Zendy; Kawauchi Takehiro | Zendy; Okoshi Kento | Zendy; Kusanagi Hiroshi | Zendy; Yashima Eiji | Zendy

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

Author(s) -

Kumaki Jiro,

Kawauchi Takehiro,

Okoshi Kento,

Kusanagi Hiroshi,

Yashima Eiji

Publication year - 2007

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200700455

Subject(s) - tacticity , atomic force microscopy , supramolecular chemistry , polymer , materials science , poly(methyl methacrylate) , methyl methacrylate , helix (gastropod) , crystallography , triple helix , polymer chemistry , crystal structure , nanotechnology , chemistry , stereochemistry , composite material , polymerization , ecology , snail , biology

A long‐standing question in polymer chemistry has been addressed by AFM, which revealed the helical conformation, handedness, and helical pitch (0.92 nm) of the title stereocomplex formed from a 1:2 mixture of the named polymers ( it ‐ and st ‐PMMA). The results provide convincing evidence for a triple‐stranded helix (see structure against a background of the AFM image) as a plausible model for the stereocomplex.

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