title: Poly(pyridinium phenylene)s: water-soluble N-type polymers.
abstract: Poly(pyridinium phenylene) conjugated polymers are synthesized by a cross-coupling and cyclization sequence. These polyelectrolytes are freely soluble in water and display high degrees of electroactivity. When reduced (n-doped) these materials display in situ conductivities as high as 160 S/cm. The high conductivity is attributed to the planar structure that is enforced by the cyclic structures of the polymer. The electron affinities are compared to PCBM, a C(60) based n-type material. We find that these polymers undergo excited state electron transfer reactions with other donor conjugated polymers and hence may find utility in photovoltaic devices.
authors.affiliation: Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Izuhara
authors.forename: Timothy M
authors.initials: TM
authors.lastname: Swager
mesh_terms: D003500:Cyclization; D004553:Electric Conductivity; D000432:Methanol / Q000737:chemistry; D015394:Molecular Structure; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D011726:Pyridinium Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012995:Solubility; D014867:Water / Q000737:chemistry*
chemical_list: D011108:Polymers; D011726:Pyridinium Compounds; C547601:poly(pyridinium phenylene); D014867:Water; D000432:Methanol