Abstract
Elastomeric ionene polymers containing 4,4′-bipyridinium (BP) or 1,2-bis(4-pyridinium)ethylene (BPE) ring were prepared by the Menschutkin reaction of 4,4′-bipyridine or 1,2-bis(4-pyridyl)ethylene with an alkyliodide-terminated prepolymer derived from poly(propylene glycol) (PPG). Resistivity (ρ) and activation energy for conduction (Ea) were measured for the 7,7,8,8-tetracyanoquinodimethane (TCNQ) salts of these elastomeric ionenes. The values of ρ were 26.7 Ωcm and 24.8 Ωcm, and the values of Ea were 0.077 eV and 0.079 eV for (BP-PPG)–TCNQ complex salt and (BPE-PPG)–TCNQ complex salt, respectively. The complex salts were processible from solutions in the form of flexible films. A microheterogeneous structure of continuous conduction columns composed of TCNQ˙̅ and TCNQ° and the poly(oxypropylene) chain brought about a high conductivity and favourable mechanical properties. These TCNQ salts were stable in an ambient condition, and the values of ρ at the storage time of about 300 days were nearly twice as large as the initial values.
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Watanabe, M., Toneaki, N. & Shinohara, I. Preparation of Elastomeric Ionene Polymers Containing 4,4′-Bipyridinium or 1,2-Bis(4-pyridinium)ethylene Ring and the Conductivity of Their TCNQ Salts. Polym J 14, 189–195 (1982). https://doi.org/10.1295/polymj.14.189
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DOI: https://doi.org/10.1295/polymj.14.189
