Electrolytic Conductivity of the N-Chloranil- and N-Xylylene-Based Polyelectrolytes in Dimethylformamide and Dimethyl Sulfoxide

Abstract

Electrolytic conductivities of four typical nitrogen-based polycations, where quaternary nitrogens in the molecular chain are attached with chloranil and xylylene moieties and are interspersed with ethylene, phenothiazine, and bipyridyl (viologen), linkages, have been investigated in dimethylformamide and dimethyl sulfoxide at 25 °C. The electrolytic conductivity as a function of concentration for systems with high charge density revealed a very narrow range of linearity in the dilute region. An empirical approach based on the Lattey equation is found suitable for the determination of the limiting mobilities of the polyions.

Physicochemical properties of some pyrimidine derivatives in some organic solvents

“…This typical behavior may be due to interactions within the molecule thereby causing constriction within the molecule or due to association between solute with solvent molecules. Similar behavior was observed by Singh et al 19,20…”

Measurement of Density, Refractive Index and Conductance of Some Pyrimidine Derivatives in Solutions at 308.15 K

“…It is observed that for all the studied compounds, conductance increases with concentration in all the solvents. For dihydropyrimidinthiones compounds, conductance is lower in THF than that of DMF which may be due to greater electro relaxation effect owing to the higher permittivity of THF, which contributes interionic repulsions to a larger extent [24]. For dihydropyrimidine, conductivity is less in DMSO than that in DMF.…”

Main-Chain Cationic Polyelectrolytes: Design, Synthesis, and Applications

“…Singh et al prepared chloranil-based polyelectrolytes with a viologen and phenothiazine linkage. 39 Polyelectrolytes (P22a and P22b) were synthesized via Michael-type substitution− elimination between p-chloranil and tertiary amine/imine (Chart 6). The electrolytic conductivities of the polyelectrolytes were measured in DMF and DMSO.…”

“…segments. These are derived mainly from polyviologens, 7 viologen-type building blocks, 35 quaternary ammonium-linked perylene units, 36 poly(pyridinium triflates), 37 aromatic ionenes, 38 and chloranil-based units 39 as the charged building blocks (Chart 3). These polyelectrolytes have applications in various fields, such as optoelectronic devices, DNA sensing, solar cells, and water splitting.…”