Unusual Component Dynamics in Poly(ethylene oxide)/Poly(methyl methacrylate) Blends As Probed by Deuterium NMR
نویسندگان
چکیده
منابع مشابه
Li Dynamics in Amorphous LiNbO3 as Probed by Solid State NMR on Different Length Scales
Long-range Li diffusion parameters of amorphous LiNbO3 are probed by Li two-time spin-alignment echo NMR spectroscopy which is sensitive to slow Li dynamics. The jump rates which were extracted from the spin-alignment echo decay curves exhibit Arrhenius behaviour between 293 K and 413 K. The activation energy (0.41(1) eV) is in good agreement with that of the high-temperature flank of the Li NM...
متن کاملDynamics of Deuteron Glasses as Probed by 2 D Exchange NMR *
The deuteron intra-bond dynamics of the deuteron glass phase in Rb0 68(N D 4)0 32D 2A s 0 4 has been studied by 2 D exchange NM R which extends the NM R observation window from the kHz region into the milli-Hertz region. The results show that the O D • • • O deuterons are indeed the basic reversible two-position dipoles in the structure and that deuteron intra-bond exchange and thus dipole reve...
متن کاملDynamic structure of membranes by deuterium NMR.
Progress in our understanding of the dynamic structure of membrane lipids and proteins has recently been made possible by the advent of high-field "solid-state" nuclear magnetic resonance spectroscopic studies of specifically deuterium-labeled systems. Major features of lipid and protein dynamics have been deduced.
متن کاملLactose Binding Induces Opposing Dynamics Changes in Human Galectins Revealed by NMR-Based Hydrogen-Deuterium Exchange.
Galectins are β-galactoside-binding proteins implicated in a myriad of biological functions. Despite their highly conserved carbohydrate binding motifs with essentially identical structures, their affinities for lactose, a common galectin inhibitor, vary significantly. Here, we aimed to examine the molecular basis of differential lactose affinities amongst galectins using solution-based techniq...
متن کاملLong-range Li+ dynamics in the lithium argyrodite Li7PSe6 as probed by rotating-frame spin-lattice relaxation NMR.
Lithium-rich argyrodites belong to a relatively new group of fast ion conducting solids. They might serve as powerful electrolytes in all-solid-state lithium-ion batteries being, from a medium-term point of view, the key technology when safe energy storage systems have to be developed. Spin-lattice relaxation (SLR) nuclear magnetic resonance (NMR) measurements carried out in the rotating frame ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Macromolecules
سال: 2004
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma035774p