title: Transition-metal-free controlled polymerization of 2-perfluoroaryl-5-trimethylsilylthiophenes.
abstract: A catalytic amount of fluoride anion promoted the polymerization of 2-pentafluorophenyl-5-trimethylsilylthiophene, providing a high-molecular-weight conjugated polymer in a chain-growth-like manner. The resulting polymer with a controlled molecular weight and a low molecular weight distribution was obtained in a high yield. The mechanism involves a pentacoordinated fluorosilicate as a key intermediate. The active polymerization end also initiated the second polymerization to afford well-defined block copolymers.
authors.affiliation: Iyoda Supra-Integrated Material Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), and Frontier Research Center, Tokyo Institute of Technology , 4259-S2-3 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: Takanobu
authors.initials: T
authors.lastname: Sanji
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Iyoda