TEMPERATURE CONTROLLABLE INTERPOLYELECTROLYTE SUBSTITUTION-REACTIONS

The competitive binding of fluorescence-tagged poly(methacrylate) poly anions and poly(phosphate) polyanions with different poly(N-alkyl-4-vi nylpyridinium) polycation quenchers (alkyl = methyl, ethyl and propyl) was studied in the region 278 divided by 333 K by fluorescence quench ing technique. The equilibrium of this interpolyelectrolyte substituti on reaction proved to be temperature sensitive except in the case when the poly(N-methyl-4-vinylpyridinium) polycation was used. Thermodynam ic parameters of the reaction were determined. The possibility of effe ctive temperature control of the interpolyelectrolyte reaction might b e important for understanding, prediction and utilization of transform ation processes of complex particles formed by electrostatically compl ementary (biological) macromolecules.