Abstract
Novel polyelectrolyte grafted charged colloidal particles have been synthesized via emulsion polymerization method using block copolymer as an emulsifier and have been characterized by determining the surface charge number (Z), chain density (σ) using conductometric titration, the size distribution, hydrodynamic (Rh) radius by dynamic light scattering and the core radius (Rc) by atomic force microscopy. The structural ordering and dynamics have been investigated in a very dilute concentration and the effect of salt concentration (Cs) on hydrodynamic radius have also been studied using dynamic light scattering. The conductivity titration curve was found to show two equivalence points and the potentiometric titration curves are found to sensitive only after a critical salt concentrations. The corresponding measured hydrodynamic radius is also found to decrease after a critical salt concentration. At high salt concentration, the hydrodynamic radius shows a close agreement with that of the core radius measure...
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