15 Result(s)
within
Hyung Il Kim
Polymer Sciences
-
Article
Evaluation of internal structure and morphology of poly(benzyl ether) dendrimers by molecular dynamics simulations
We performed molecular dynamics (MD) simulations at 300 K on a series of poly(benzyl ether) (PBE) dendrimers having a different core functionalities. We used the rotational isomeric state Metropolis Monte Carl...
-
Article
Age-hardening behaviour and microstructure of a silver alloy with high Cu content for dental application
Age-hardening behaviour and the related microstructural changes of a silver alloy with relatively high Cu content were elucidated by means of hardness test, X-ray diffraction (XRD), scanning electron microscop...
-
Article
Age-hardening behaviour of a spinodally decomposed low-carat gold alloy
The age-hardening behaviour of a spinodally decomposed low-carat gold alloy was investigated by means of hardness test, X-ray diffraction (XRD), field emission scanning electron microscopic (FESEM) observation...
-
Article
Dynamic mechanical properties of natural fiber/polymer biocomposites: The effect of fiber treatment with electron beam
Environmentally friendly biocomposites were made using plant-based natural fibers, such as henequen and kenaf. The natural fiber reinforced polypropylene (PP) and unsaturated polyester (UP) biocomposites were ...
-
Article
Synthesis of microcapsules with polystyrene/ZnO hybrid shell by Pickering emulsion polymerization
Polystyrene/zinc oxide (ZnO) hybrid microcapsules having polystyrene as inner shell and ZnO nanoparticles as outer shell were synthesized by Pickering emulsion polymerization method. ZnO nanoparticles were use...
-
Article
Novel synthesis of silica/polypyrrole hybrid nanocomposites via microemulsion polymerization with a vapor monomer feeding system
Silica/polypyrrole hybrid nanoparticles were synthesized by microemulsion polymerization using a vapor monomer feeding system. In contrast to the traditional monomer feeding methods of microemulsion polymeriza...
-
Article
Effect of oxyfluorination on electromagnetic interference shielding of polyaniline-coated multi-walled carbon nanotubes
Highly conducting polyaniline (PANi)-coated multi-walled carbon nanotubes (MWCNTs) were prepared by in situ polymerization method for electromagnetic interference shielding. The thickness of the PANi coatings ...
-
Article
Controlled release behavior of PCL/PEO/activated carbon composite microcapsule
Microcapsules, consisting of hydrophobic poly(ε-caprolactone), hydrophilic poly(ethylene oxide), and activated carbon, were prepared by an oil-in-water emulsion solvent evaporation method with the aim of reduc...
-
Article
Electromagnetic interference shielding effects of polyaniline-coated multi-wall carbon nanotubes/maghemite nanocomposites
Highly conductive nanocomposites were prepared by in situ polymerization of polyaniline (PANi) and multi-walled carbon nanotubes (MWCNTs) as electromagnetic interference shielding materials. γ-Fe2O3 nanoparticles...
-
Article
Dual-responsive release behavior of pH-sensitive PVA/PAAc hydrogels containing temperature-sensitive PVA/PNIPAAm microcapsules
Both temperature and pH responsive drug delivery system was prepared by combining temperature-sensitive poly(vinyl alcohol) (PVA)/poly(N-isopropylacrylamide) (PNIPAAm) microcapsules and pH-sensitive PVA/poly(acry...
-
Article
Effect of oxyfluorination of PVA/PNIPAAm hydrogel on temperature responsive drug release
The temperature-responsive poly(vinyl alcohol)/ poly(N-isopropylacrylamide) hydrogel was prepared as a drug delivery carrier. The vitamin B12 release behavior of hydrogel was controlled by direct oxyfluorination....
-
Article
Erratum to: Electromagnetic interference shielding effects of polyaniline-coated multi-wall carbon nanotubes/maghemite nanocomposites
-
Article
Control of drug release behavior of pH-responsive PVA/PAAc hydrogel by surface modification with oxyfluorination
The pH-responsive poly(vinyl alcohol)/poly(acrylic acid) hydrogel was prepared as a drug-delivery carrier. The drug release rate from hydrogels was controlled by surface modification with oxyfluorination. The ...
-
Article
Improvement of ammonia sensing properties of polypyrrole by nanocomposite with graphitic materials
The more sensitive and rapid ammonia gas sensors were prepared with nanocomposites of polypyrrole (PPy) and graphitic materials such as graphite, graphite oxide (GO), and reduced graphene oxide (RGO). Pyrrole ...
-
Article
A hybrid gas-sensing material based on porous carbon fibers and a TiO2 photocatalyst
The electrode material for a gas sensor was prepared from electrospun carbon fibers. The electrode material was chemically activated to enlarge the gas adsorption sites, and carbon nanotubes (CNTs) were embedd...
