Preferential adsorption and co-nonsolvency of thermoresponsive polymers in mixed solvents of water/methanol

F Tanaka, T Koga, H Kojima, N Xue, FM Winnik - Macromolecules, 2011 - ACS Publications
If two good solvents become poor for a polymer when mixed, the solvent pair is called a co-nonsolvent
pair for the polymer. The sharp depression of the LCST by the co-nonsolvency in …

Effects of different water percentages in non-surfactant emulsion fuel on performance and exhaust emissions of a light-duty truck

…, NA Ramlan, DA Sugeng, ARM Adib, T Koga… - Journal of cleaner …, 2018 - Elsevier
The interest in emulsion fuel grows worldwide because it is potentially more environment
friendly than its base fuel. Nonetheless, it has yet to be widely used as it is pricier than …

Theoretical modeling of associated structures in aqueous solutions of hydrophobically modified telechelic PNIPAM based on a neutron scattering study

T Koga, F Tanaka, R Motokawa, S Koizumi… - …, 2008 - ACS Publications
On the basis of results from a small-angle neutron scattering (SANS) study of aqueous solutions
of a telechelic PNIPAM with octadecyl end groups, we developed a theoretical model of …

Temperature-Responsive Polymers in Mixed Solvents:<? format?> Competitive Hydrogen Bonds Cause Cononsolvency

F Tanaka, T Koga, FM Winnik - Physical review letters, 2008 - APS
If two good solvents become poor for a polymer when mixed, the solvent pair is called a
cononsolvent pair. The sharp reentrant coil-to-globule-to-coil transition of a poly ( N -…

Curvature determination of spinodal interface in a condensed matter system

H Jinnai, T Koga, Y Nishikawa, T Hashimoto, ST Hyde - Physical review letters, 1997 - APS
Laser scanning confocal microscopy has been used to study the time evolution of a three
dimensional spatially bicontinuous structure of a phase-separated polymer blend undergoing …

Emulsifier-free Water-in-Diesel emulsion fuel: Its stability behaviour, engine performance and exhaust emission

…, MA Ahmad, NA Ramlan, HA Kadir, NAC Sidik, T Koga - Fuel, 2018 - Elsevier
Water-in-Diesel emulsion fuel (W/D) is an alternative fuel which progressively intrigues the
world attention due to its great impact to the environment as well as energy consumption. …

Temperature- and Tension-Induced Coil−Globule Transition of Poly(N-isopropylacrylamide) Chains in Water and Mixed Solvent of Water/Methanol

F Tanaka, T Koga, H Kojima, FM Winnik - Macromolecules, 2009 - ACS Publications
The concept of cooperative dehydration, defined as the simultaneous dissociation of the water
molecules bound in correlated sequences to a polymer chain, has been applied to study …

Direct observation of three-dimensional bicontinuous structure developed via spinodal decomposition

H Jinnai, Y Nishikawa, T Koga, T Hashimoto - Macromolecules, 1995 - ACS Publications
In orderto study the phase separation process, two different types of analyses are used to
characterize the structure: real-space analysis using microscopy4 and reciprocal-space …

A review of design and modeling of magnetorheological valve

AY Abd Fatah, SA Mazlan, T Koga… - … Journal of Modern …, 2015 - World Scientific
Following recent rapid development of researches in utilizing Magnetorheological (MR) fluid,
a smart material that can be magnetically controlled to change its apparent viscosity …

Late stage dynamics of spinodal decomposition in binary fluid mixtures

T Koga, K Kawasaki - Physica A: Statistical Mechanics and its Applications, 1993 - Elsevier
Results of extensive computer simulations of spinodal decomposition in binary fluids with
different values of the shear viscosity, which is modeled by the time-dependent Ginzburg-…