Effect of Polymer Additive on Inverse Microemulsion Polymerization of Acrylamide

T h e effect of Polyacrylamide as an additive on preparat ion of inverse microemulsion t o l u e n e — A O T ( A O T sodium bis(2-ethylhexyl)sul fosuccinate)—water—acrylamide—Polyacrylamide and on t h e propert ies of polymer particles resulting from t h e free-radical polymerizat ion of acrylamide was s tudied. I t was found t h a t the a m o u n t of Polyacrylamide which can be added wi thout hindering t h e formation of t h e inverse microemulsion depends on t h e to luene: A O T mole rat io {xr). Macroviscosity of the inverse microemulsion depends on t h e value of volume fraction of aqueous phase (water—acry lamide—Polyacry lamide) , y? a w, in the inverse disperse system. Besides influencing t h e formation and stability of inverse, microemulsion, the presence of Polyacrylamide in t h e inverse mi­ celles enormously increases t h e final Polyacrylamide particle size. On t h e other h a n d , addit ion of Polyacrylamide only marginally affects t h e molecular mass of Polyacrylamide formed in polymer particles.