| 초록 |
Emulsion polymerization presents the disadvantage that the physical properties of polymer particles are altered by surfactant adsorption. Therefore, the soap-free emulsion polymerization method utilizes a hydrophilic initiator while inducing repulsion among particles on the poly-mer-particle surface, resulting in stable polymer particle production. In this study, we developed a methodology wherein spherical and uniform poly(styrene-co-maleic anhydride) (PSMA)/polyethyleneimine (PEI) core–shell nanoparticles were prepared. Further, their morphology was analyzed. consequently, the particle size increased, and as the complete monomer consumption time increased, the particle distribution widened. The styrene (St) copolymer acted as a stabilizer, reducing particle size and narrowing particle distribution. The shell thickness and particle size were PEI feed ratio-dependent, with 0.08 being the optimal PEI-to-MA ratio. |
