a method involving the automatic , online dilution of polymer and / or colloid solutions , such that , when the diluted polymer stream flows through suitable detectors , non - equilibrium processes , such as polymerization , degradation and aggregation , can be monitored . the dilution involves a reacting or stock solution of polymer and / or colloid , and at least one solvent . the online dilution technique can also be used to assess the effects of solvent quality and other solutes on polymer / colloid characteristics and reactions , and also permits equilibrium characterization of polymers / colloids by making a single stock solution of the polymer / colloid .