A Novel Transparent Polyacetylene Bearing a Triphenylamine Moiety Prepared with a [Rh(norbornadiene)Cl]2 Catalyst |
| |
| Authors: | Atsushi Miyasaka Minoru Nakamura Yasuteru Mawatari Kazuhiko Orito Masayoshi Tabata |
| |
| Institution: | Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan |
| |
| Abstract: | Novel soluble polyacetylenes having a triphenylamine moiety were synthesized by a Rh(norbornadiene)Cl]2 catalyst under quite mild conditions in fairly high yields. The obtained polymer showed to have trans-transoid sequence as the major main-chain structure which was generated through the so-called cis-to-trans isomerization was already induced even during the polymerization. The HCl doping of the polymer was resulted in the formation of the oxidized polymer where the so-called polaron or bipolaron was produced. In addition, we found that in the case of the pristine polymer unpaired electrons mainly localized on the triphenylamine moiety as the side chain. On the other hand, after the doping the unpaired electron delocalized on the main chain of the polymer. |
| |
| Keywords: | conjugated polymer ESR organometalic catalyst polyacetylenes solid state structure |
|
