EFFECT OF POLYMER ADDITIVE ON INVERSE MICROEMULSION POLYMERIZATION OFACRYLAMIDE

The effect of pol acrylamide as an additive on preparation of inverse microemulsion toluene-AOT (AOT - sodium bis(2-ethylhexyl)sulfosuccinat e)-water and on the properties of polymer particles resulting from the free-radical polymerization of acrylamide was studied. It was found t hat the amount of polyacrylamide which can be added without hindering the formation of tile inverse microemulsion depends on the toluene:AOT mole ratio (x(r)). Macroviscosity of the inverse microemulsion depend s on the value of volume fraction of aqueous phase (water-acrylamide-p olyacrylamide) phi(aw), in the inverse disperse system. Besides influe ncing the formation and stability of inverse microemulsion, the presen ce of polyacrylamide in the inverse micelles enormously increases the final polyacrylamide particle size. On the other hand, addition of pol yacrylamide only marginally affects the molecular mass of polyacrylami de formed in polymer particles.