Abstract：Taking kerosene as oil phase, dimethyl diallyl ammonium chloride (DMDAAC) and acrylamide (AM) as monomers, based on the emulsifying system comprised of nonionic surfactants Span-80 and OP-10, the effects of hydrophile-lipophile balance (HLB) value of emulsifier, monomers concentration and content in water, addition of electrolyte, temperature and emulsifier concentration on the stability of the system and solubilization capacity of aqueous phase were studied by conductivity method and visual observation. The results showed that the conductivity changed slightly and the solubilization capacity was large at 7.70 of HLB value, 60%(w) of monomers concentration in water, 0.2 of molar ratio of DMDAAC to AM, and 1.25%(w) of HCOONa concentration in water. The increase of temperature had a negative effect on the systematic stability. Polymer microemulsion with high stability and clarity was obtained after polymerization. The particle size increased notably after polymerization via particle size analysis, which could be interpreted by the mechanisms of monomer diffusion and micelle collision.
2008, Vol. 8 
