The Cooperative Binding Isotherms of Sodium Alkanesulfonates to Poly(1-methyl-4-vinylpyridinium chloride)

Binding isotherms of nonane-, decane-, and undecane- sulfonate ions to poly (1-methyl-4-vinylpyridinium chloride) were determined by using nitrobenzene-membrane electrode. It was shown that an increase in alkyl chain length is accompanied not only by a rapid increase in the cooperativity parameter but by a regular decrease in an equilibrium surfactant concentration at half binding.