Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Sang Koo Choi"'
Publikováno v:
Bulletin of the Korean Chemical Society. 39:806-811
Publikováno v:
Energy & Fuels. 31:7777-7782
Intense interest has been shown in the development of “smart nanofluids” because they can dramatically change their flow properties in complex fluid systems. We introduce a robust and straightforward approach to develop a smart nanofluid system,
Publikováno v:
Langmuir. 32:13403-13408
This study introduces a new type of associative nanoparticle (ANP) that provides controlled chain-to-chain attraction with an associative polymer rheology modifier (APRM) to produce highly stable Pickering emulsions. The ANPs were synthesized by graf
Publikováno v:
Energy & Fuels. 30:2628-2635
This study reports a Pickering emulsion flooding system, in which the oil–water interface is structurally stabilized by a complex colloidal layer consisting of silica nanoparticles, dodecyltrimethylammonium bromide (DTAB), and poly(4-styrenesulfoni
Publikováno v:
Polymer Chemistry. 7:3471-3476
This study reports a robust and straightforward approach to synthesize associative nanoparticles (ANPs) that can modify the rheological properties of aqueous polymer gel fluids. The ANPs were synthesized by grafting hydrophobically modified hygroscop
Autor:
H.T. Kim, Ki Youl Yoon, Hanam Son, Jang Woo Cho, Kun Sang Lee, Geon Joon Lee, Sang Koo Choi, Jin Woong Kim, K.C. Im, Wonmo Sung
Publikováno v:
Journal of Petroleum Science and Engineering. 126:152-161
We investigated the use of silica nanoparticle-stabilized emulsions to displace oil in porous media. A low-quality (20%) n-decane-in-water emulsion was injected into a glass-bead pack containing mineral oil under residual oil saturation conditions. C
Autor:
Chinedum O. Osuji, Yea Ram Lee, Sang Koo Choi, Heung Soo Baek, Jin Woong Kim, Chan Bok Chung, Daehwan Park, Jin Nam, Kim Miju
Publikováno v:
ACS applied materialsinterfaces. 9(36)
Cellulose fibrils, unique plant-derived semicrystalline nanomaterials with exceptional mechanical properties, have significant potential for rheology modification of complex fluids due to their ability to form a physically associated semiflexible fib
Publikováno v:
Journal of Colloid and Interface Science. 413:100-105
Typical Pickering emulsions accumulate particles to form a robust colloidal layer at an immiscible liquid–liquid interface. However, if the particles are smaller than tens of nanometers, they have a tendency toward coming off from the interface, th
Autor:
Eun Sook Jeong, Jin Woong Kim, Wonmo Sung, Hyuntae Kim, Sang Koo Choi, Bohyun Kim, Han Am Son
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 32(35)
Microbially enhanced oil recovery involves the use of microorganisms to extract oil remaining in reservoirs. Here, we report fabrication of microgel particles with immobilized Bacillus subtilis for application to microbially enhanced oil recovery. Us
Publikováno v:
Macromolecular rapid communications. 35(15)
A robust and straightforward approach is introduced to synthesize inorganic nanoparticles chemically grafted with a zwitterionic poly(2-methacryroyloxyethylphosphorylcholine) (PMPC) thin layers. The synthesis method is based on the surface-mediated s