Intermolecular Spin Relaxation and Translation Diffusion in Liquids and Polymer Melts: Insight from Field-Cycling1H NMR Relaxometry

ChemPhysChem ◽  
2013 ◽  
Vol 14 (13) ◽  
pp. 3071-3081 ◽  
Author(s):  
Roman Meier ◽  
Danuta Kruk ◽  
Ernst A. Rössler
Keyword(s):  
Spin Relaxation ◽  
Polymer Melts ◽  
Nmr Relaxometry ◽  
Translation Diffusion ◽  
Diffusion In Liquids

Field-Cycling NMR Relaxometry Probing the Microscopic Dynamics in Polymer Melts

2014 ◽  
Vol 47 (22) ◽  
pp. 7917-7929 ◽  
Author(s):  
M. Hofmann ◽  
B. Kresse ◽  
A. F. Privalov ◽  
L. Willner ◽  
N. Fatkullin ◽  
...  
Keyword(s):  
Polymer Melts ◽  
Nmr Relaxometry ◽  
Field Cycling ◽  
Microscopic Dynamics

Iso-Frictional Mass Dependence of Diffusion of Polymer Melts Revealed by 1H NMR Relaxometry

2013 ◽  
Vol 46 (14) ◽  
pp. 5538-5548 ◽  
Author(s):  
R. Meier ◽  
A. Herrmann ◽  
M. Hofmann ◽  
B. Schmidtke ◽  
B. Kresse ◽  
...  
Keyword(s):  
1H Nmr ◽  
Polymer Melts ◽  
Mass Dependence ◽  
Nmr Relaxometry ◽  
1H Nmr Relaxometry

scholarly journals Dynamics of Ionic Liquids in Confinement by Means of NMR Relaxometry—EMIM-FSI in a Silica Matrix as an Example

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4351
Author(s):  
Danuta Kruk ◽  
Milosz Wojciechowski ◽  
Malgorzata Florek-Wojciechowska ◽  
Rajendra Kumar Singh
Keyword(s):  
Three Dimensional ◽  
Lattice Relaxation ◽  
Silica Matrix ◽  
Spin Lattice Relaxation ◽  
Bulk Liquid ◽  
Relaxation Data ◽  
Spin Lattice ◽  
Nmr Relaxometry ◽  
Dimensional Diffusion ◽  
Translation Diffusion

1H and 19F spin–lattice relaxation studies for 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide in bulk and mesoporous MCM-41 silica matrix confinement were performed under varying temperatures in a broad range of magnetic fields, corresponding to 1H resonance frequency from 5Hz to 30MHz.A thorough analysis of the relaxation data revealed a three-dimensional translation diffusion of the ions in the bulk liquid and two-dimensional diffusion in the vicinity of the confining walls in the confinement. Parameters describing the translation dynamics were determined and compared. The rotational motion of both kinds of ions in the confinement was described by two correlation times that might be attributed to anisotropic reorientation of these species.

Long-Time Diffusion in Polymer Melts Revealed by 1H NMR Relaxometry

2013 ◽  
Vol 2 (2) ◽  
pp. 96-99 ◽  
Author(s):  
R. Meier ◽  
A. Herrmann ◽  
B. Kresse ◽  
A. F. Privalov ◽  
D. Kruk ◽  
...  
Keyword(s):  
1H Nmr ◽  
Polymer Melts ◽  
Nmr Relaxometry ◽  
Long Time ◽  
1H Nmr Relaxometry
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