A practical method to account for random phase approximation effects on the dynamic scattering of multi-component polymer systems

Monkenbusch, M.; Richter, D.; Willner, L.; Farago, B.; Zamponi, M.; Kruteva, M.; Hoffman, I.

doi:10.1063/1.5139712

Journal Article

FZJ-2020-02910

A practical method to account for random phase approximation effects on the dynamic scattering of multi-component polymer systems

Monkenbusch, M. (Corresponding author)FZJ* ; Kruteva, M.FZJ* ; Zamponi, M.FZJ* ; Willner, L.FZJ* ; Hoffman, I. ; Farago, B. ; Richter, D.FZJ*

2020
American Institute of Physics Melville, NY

The journal of chemical physics 152(5), 054901 - (2020) [10.1063/1.5139712]

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Please use a persistent id in citations: http://hdl.handle.net/2128/25657 doi:10.1063/1.5139712

Abstract: Investigations of polymer systems that rely on the interpretation of dynamical scattering results as, e.g., the structure factor S(Q, t) of single chains or chain sections may require the inclusion of effects, as described within the framework of the random phase approximation (RPA) for polymers. To do this in practice for the dynamic part of S(Q, t) beyond the initial slope is a challenge. Here, we present a method (and software) that allows a straightforward assessment of dynamical RPA effects and inclusion of these in the process/procedures of model fitting. Examples of applications to the interpretation of neutron spin-echo data multi-component polymer melts are shown

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Soft Condensed Matter (2nd)

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ddc:530

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No specific instrument

Appears in the scientific report 2020

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Medline

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