Spatial information on a polymer gel as studied by 1H-NMR imaging

Diffusional Behavior of Solvents and Amino Acids in Network Polystyrene Gels As Studied by1H Pulsed-Field-Gradient Spin−Echo NMR Method

“…The spin−lattice relaxation time ( T 1 ) and spin−spin relaxation time ( T 2 ) give information about the microscopic molecular motion of solvent − and probe polymer in polymer gel systems − Further, the 1 H pulsed-field-gradient spin−echo (PFGSE) NMR method has become a useful technique for studying self-diffusion in polymer gels − in addition to the diffusion studies on substances in polymer gels by the dynamic light scattering (DLS) method, − and also molecular lateral diffusion in membrane systems has been studied by fluorescence recovery after photobleaching. − Most recently, by using the PFGSE NMR method, the diffusional behavior of polymer and solvent in polymer gel systems has been systematically elucidated. − …”

Three‐dimensional observation of phase‐separated poly(methyl methacrylate)/poly(styrene‐ran‐4‐bromostylene) blends by 3D NMR microscopy with X‐ray microscopy

“…It has been demonstrated that NMR imaging is a very useful means for obtaining nondestructively μm‐scale spatial information on probe molecules in bulk matters with μm‐scale cavities 1, 2. For this, NMR imaging has been successfully used to elucidate the stimulus‐response process of polymer gels under the application of external stimuli, such as stress, heating, and electric field, the transportation of probe metal ions in a polymer gel under electric field, and the number of channel cavities and its size distribution in a polymer gel 3–11…”