Role of Triple-Ions in Ionic Polymerization

This writer favors the second explanation. It is possible that the kt values claimed by Schulz are somewhat too large and k+ = (kt + k Kti ()/(l + Kt t) f, especially at 

The concept of triple-ions arose from the conductance studies of Fuoss and Krauss297) who observed an increase of equivalent conductance of electrolyte solutions at higher salt concentrations. They interpreted these findings as evidence of association of the free ions with their pairs, viz. 

The concentration of free ions virtually is unaffected by the formation of triple-ions if Kr = Kt+, provided that the proportion of the latter ions is low. However, when K,- K,+ or K,+ Kt-, the formation of triple-ions affects the concentration of free ions. For example, the ratio [A ]/[B+] 1 when Kt+ Kt-, a result required by the condition of electric neutrality of the solution. 

Let us consider an extreme case, namely K,+ 0 and K,- Kt+. In such a system the equilibrium, 

A few words about reactivities of triple-ions are in place. The A ,B+, A triple-ions are more reactive than the pair A, B+ but substantially less reactive than the free ion, A . Unfortunately, nothing is known about reactivities of B+, A-,B+ triple-ions most likely they are less reactive than the pairs. 

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