N-CHLORANIL AND N-XYLENE CONTAINING POLYCATIONS - PREPARATION AND SOLVATION CHARACTERISTICS

Partial molar volume studies on four new types of cationic polyelectro lytes (mol wt 1167 to 6432), where quaternized centres in oligomeric c hain are essentially N-chloranil or N-xylylene ammonium/imminium moiet ies interspersed with ethylene, phenothiazin-5-ium and bipyridyl (viol ogen) links, have been undertaken in two dipolar aprotic solvents (dim ethylformamide and dimethyl sulfoxide) over small temperature range (2 5+/-5 degrees C). A cumulative effect of competing electrostrictional and solvophobic interactions with the dipolar nonaqueous media was exa mined to explore the conformational alternations of these polymers at varying temperatures and concentrations.