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Helical Structures of Conjugate Polymers Created by Oxidative Polymerization Using Synthetic Lipid Assemblies as Templates
Author(s) -
Hatano Tsukasa,
Bae AhHyun,
Takeuchi Masayuki,
Fujita Norifumi,
Kaneko Kenji,
Ihara Hirotaka,
Takafuji Makoto,
Shinkai Seiji
Publication year - 2004
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200400332
Subject(s) - polymerization , cationic polymerization , monomer , polymer , template , conjugate , aniline , materials science , polymer chemistry , pyrrole , chemistry , nanotechnology , organic chemistry , mathematical analysis , mathematics , composite material
The morphology of conjugate polymers (such as poly(ethylenedioxythiophene), poly(pyrrole), and poly(aniline)) can be controlled in their polymerization processes, by applying the concept of the templating method to oxidative polymerization. As oxidative polymerization of these monomers produces cationic intermediates, the anionic assemblies can act as potential templates due to the mutual electrostatic attractive force. Oxidative polymerization of ethylenedioxythiophene (EDOT), pyrrole, and aniline was carried out using helical superstructures of synthetic lipid assemblies as templates. Interestingly, we have found that oxidative polymerization of these monomers results in novel polymeric aggregates, such as a helical‐tape structure and an intertwined helical structure, and that both the right‐handed and left‐handed helical structures can be created by a change in the hydrophilic head groups. This is the first example of helical superstructures composed of conjugate polymers that have been designed utilizing a convenient templating method.