Chemistry Letters, Vol.37, No.11, 1128-1129, 2008
Characterization of Nanoparticles in an Aqueous Solution with Bound Water Molecules Using Pulsed Field Gradient Nuclear Magnetic Resonance Spectroscopy
The slow diffusion of water molecules in a polystyrene latex (PS-latex) nanoparticle solution was observed using the pulsed field gradient nuclear magnetic resonance (PFG-NMR) method. The measured diameter of the PS-latex nanoparticle was approximately 32 nm, and the slowly diffusing water was attributed to the small amount of water molecules bound strongly by PS-latex particles.