Application of proton field‐cycling NMR relaxometry for studying translational diffusion in simple liquids and polymer melts

M Flämig, M Hofmann, A Lichtinger… - Magnetic Resonance …, 2019 - Wiley Online Library
With the availability of commercial field‐cycling relaxometers together with progress of home‐
built instruments nuclear magnetic resonance relaxometry has gained new momentum as a …

Signature of reptation in the long-time behavior of the deuteron NMR Free Induction Decay in high molecular mass polymer melts

NF Fatkullin, T Körber, EA Rössler - Polymer, 2018 - Elsevier
The classical tube-reptation (TR) model is based on the assumption, that in entangled
polymer melts diffusion takes place inside the effective tubes having a conformation of ideal …

Application of field-cycling 1H NMR relaxometry to the study of translational and rotational dynamics in liquids and polymers

EA Rössler, M Hofmann, N Fatkullin - 2018 - books.rsc.org
Field-cycling (FC) NMR relaxometry is a well-established method for probing the dynamics
in condensed matter. 1–9 The method predominantly yields the (Larmor) frequency …

On the theory of deuteron NMR free induction decay of reptating polymer chains: Effect of end segment dynamics

IK Ostrovskaya, NF Fatkullin, T Körber… - The Journal of …, 2020 - pubs.aip.org
A self-consistent approximation beyond the Redfield limit and without using the Anderson–
Weiss approximation for the Free Induction Decay (FID) of deuteron spins belonging to …

Dynamics of polymer systems studied by NMR field-cycling relaxometry

M Hofmann, M Flämig, EA Rössler - 2019 - books.rsc.org
Field-Cycling (FC) NMR relaxometry is a well-established method for investigating the
dynamics in polymeric systems. 1–6 The ability of the technique to probe the polymer …

Dipolar correlations in 1, 4-polybutadiene across the timescales: A numerical molecular dynamics simulation investigation

M Solar, W Paul - The scaling of relaxation processes, 2018 - Springer
Broadband dielectric spectroscopy is able to follow the time correlation of its observable, the
polarization of a sample, over an unprecedented range of frequency or timescales …

Field-Cycling Relaxometry of Polymers

S Stapf, A Lozovoi - 2018 - books.rsc.org
The dynamics of polymer melts and elastomers takes place over a huge range of time
scales, from the local scale of vibrations and side-group rotations up to reorientations and …

Segmental Dynamics of Entangled Poly (ethylene oxide) Melts: Deviations from the Tube-Reptation Model

A Lozovoi, C Mattea, N Fatkullin, S Stapf - Macromolecules, 2018 - ACS Publications
The dynamics of entangled polymer melts not only is of fundamental theoretical interest but
also has wide-reaching consequences for develo** a theoretical foundation for …

Theoretical and experimental study of polymer melt dynamics: role of intermolecular dipolar interactions

A Lozovoi - 2018 - db-thueringen.de
In dieser Arbeit wird die Dynamik verschränkter Polymerschmelzen mittels eines neuartigen
vielseitigen NMR-Formalismus umfassend untersucht. Der theoretische Hintergrund für …