title: Macromolecular helicity induction in a cationic polyacetylene assisted by an anionic polyisocyanide with helicity memory in water: replication of macromolecular helicity.
abstract: We report the first example of the replication of macromolecular helicity. An optically active helical and anionic polyelectrolyte, the sodium salt of poly(4-carboxyphenyl isocyanide), was found to serve as the template for further helicity induction in a different polyelectrolyte with opposite charges in water, resulting in interpolymer helical assemblies with controlled helicity. The effects of the pH and salt concentration on the helicity induction were investigated.
authors.affiliation: Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Maeda
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Ishikawa
authors.forename: Eiji
authors.initials: E
authors.lastname: Yashima
mesh_terms: D000114:Acetylene / Q000031:analogs & derivatives* / Q000737:chemistry*; D003486:Cyanides / Q000737:chemistry*; D004573:Electrolytes / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D018625:Microscopy, Atomic Force; D008958:Models, Molecular; D008968:Molecular Conformation; D009994:Osmolar Concentration; D011108:Polymers / Q000737:chemistry*; D053279:Polyynes; D012965:Sodium Chloride / Q000737:chemistry; D014867:Water / Q000737:chemistry*
chemical_list: D003486:Cyanides; D004573:Electrolytes; D011108:Polymers; D014867:Water; D053279:Polyynes; D012965:Sodium Chloride; D000114:Acetylene