Synthesis of microcapsule containing oil phase via in-situ polymerization

The preparation of microcapsules of high density oil as core material and MF precondensates as a shell material via in situ polymerization was discussed. The characterizations of the the microcapsules synthesized using anionic polymeric surfactant were performed via morphology analysis, mean particle size, size distribution and shear velocity. Both particle size and size distribution of microcapsules were measured using an image analyzer. It was found that the microcapsules possessed rigid and smooth microcapsule walls, while rare aggregates existed in microcapsule surfaces. The results show that poly(sodium 4-styrenesulfonate) (PSSA), as an emulsifier with small increase in viscosity was proper to microencapsulation process.