Kim, Sinwoo Lee, Sang-Soo Lee, Jonghwi 2024-01-20T13:01:02Z 2024-01-20T13:01:02Z 2021-09-01 2013-03 0379-153X https://pubs.kist.re.kr/handle/201004/128324 Graphene-coated polymer particles have attracted research interests due to their emerging applications derived from their controlled structure and morphology. To control the properties of graphene oxide (GO)-polystyrene (PS) composite particles, the adsorption time and instantaneous adsorption conditions were investigated by varying their mixing method. Polystyrene particles prepared by emulsion polymerization were modified to have positive surface charge by adsorption of polyethylene imine (PEI) on the surface of PS particles. GO prepared by the chemical exfoliation method had negative surface charge from the oxygenated groups. The adsorption of the negatively charged GOs onto the positively charged PS particles was successfully completed, and it was found that a longer adsorption time and a greater difference in the instantaneous relative concentration led PS-GO particles to have more homogeneously coated surfaces without aggregation. Korean POLYMER SOC KOREA SURFACES NANOPARTICLES FABRICATION FORCES ACID LEAD Adhesion Behavior of Graphene Oxide on Spherical Polymer Particles Article 10.7317/pk.2013.37.2.162 1 POLYMER-KOREA, v.37, no.2, pp.162 - 166 POLYMER-KOREA 37 2 162 166 scie scopus kci ART001753267 000317545900006 2-s2.0-84876883769 Polymer Science Polymer Science Article SURFACES NANOPARTICLES FABRICATION FORCES ACID LEAD composite particle graphene oxide adhesion behavior mixing method