Ku, Kang Hee Shin, Jae Man Klinger, Daniel Jang, Se Gyu Hayward, Ryan C. Hawker, Craig J. Kim, Bumjoon J. 2024-01-20T04:30:37Z 2024-01-20T04:30:37Z 2021-09-05 2016-05 1936-0851 https://pubs.kist.re.kr/handle/201004/124118 A series of porous block copolymer (BCP) particles with controllable morphology and pore sizes was fabricated by tuning the interfacial behavior of BCP droplets in oil-in-water emulsions. A synergistic adsorption of polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) BCPs and sodium dodecyl sulfate (SDS) to the surface of the emulsion droplet induced a dramatic decrease in the interfacial tension and generated interfacial instability at the particle surface. In particular, the SDS concentration and the P4VP volume fraction of PS-b-P4VP were key parameters in determining the degree of interfacial instability, leading to different types of particles including micelles, capsules, closed-porosity particles, and open-porosity particles with tunable pore sizes ranging from 10 to 500 nm. The particles with open-porosity could be used as pH responsive, high capacity delivery systems where the uptake and release of multiple dyes could be achieved. English AMER CHEMICAL SOC SEEDED DISPERSION POLYMERIZATION PERFORMANCE LIQUID-CHROMATOGRAPHY POROUS MICROPARTICLE SPONTANEOUS EMULSIFICATION NANOPARTICLE SURFACTANTS DRUG-DELIVERY MICELLES MICROSPHERES ROUTE SPHERES Particles with Tunable Porosity and Morphology by Controlling Interfacial Instability in Block Copolymer Emulsions Article 10.1021/acsnano.6b00985 1 ACS NANO, v.10, no.5, pp.5243 - 5251 ACS NANO 10 5 5243 5251 scie scopus 000376825100038 2-s2.0-84973324701 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article SEEDED DISPERSION POLYMERIZATION PERFORMANCE LIQUID-CHROMATOGRAPHY POROUS MICROPARTICLE SPONTANEOUS EMULSIFICATION NANOPARTICLE SURFACTANTS DRUG-DELIVERY MICELLES MICROSPHERES ROUTE SPHERES porous particle block copolymer interfacial instability emulsion droplet drug-delivery