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Dieter Richter

Explore the profile of Dieter Richter including associated specialties, affiliations and a list of published articles. Areas
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Articles 63
Citations 395
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Recent Articles
1.
Sharma A, Kruteva M, Willner L, Romano D, Porcar L, Dulle M, et al.
ACS Macro Lett . 2025 Mar; :349-353. PMID: 40043097
Disentangled ultrahigh molecular weight polyethylene exhibits a time-dependent increase in rheology modulus when molten. This originates from its kinetically evolving heterogeneous microstructure consisting of disentangled and entangled regions. We report...
2.
Kruteva M, Allgaier J, Monkenbusch M, Valiullin R, Hoffmann I, Richter D
ACS Macro Lett . 2024 Mar; 13(3):335-340. PMID: 38427591
We present a quantitative comparison of the dynamic structure factors from unentangled and strongly entangled poly(butylene oxide) (PBO) melts. As expected, the low molecular weight PBO displays Rouse dynamics, however,...
3.
Monkenbusch M, Kruteva M, Richter D
J Chem Phys . 2023 Jul; 159(3). PMID: 37458352
In this work, we compare the single chain dynamic structure factors for five different polymers: polyolefins (PE and PEP), poly-dienes (PB and PI), and a polyether (PEO). For this purpose,...
4.
Sharma A, Kruteva M, Allgaier J, Hoffmann I, Falus P, Monkenbusch M, et al.
ACS Macro Lett . 2022 Nov; 11(12):1343-1348. PMID: 36409674
By neutron spin echo (NSE) and pulsed field gradient (PFG) NMR, we study the dynamics of a polyethylene-oxide melt (PEO) with a molecular weight in the transition regime between Rouse...
5.
Kruteva M, Allgaier J, Monkenbusch M, Porcar L, Richter D
ACS Macro Lett . 2022 Jun; 9(4):507-511. PMID: 35648506
We report small angle neutron scattering (SANS) results on very large polyethylene-oxide (PEO) rings in the melt. Major findings are (i) the observation of a cross over in the SANS...
6.
Zinn T, Willner L, Pipich V, Richter D, Lund R
ACS Macro Lett . 2022 May; 5(7):884-888. PMID: 35614762
The rate of molecular exchange in diblock copolymer micelles is strongly dependent on the chain length of the core-forming insoluble block. Less is known about the influence of the soluble...
7.
Lund R, Willner L, Richter D, Lindner P, Narayanan T
ACS Macro Lett . 2022 May; 2(12):1082-1087. PMID: 35606972
Here we present an in situ study of the nonequilibrium cylinder-to-sphere morphological transition kinetics on the millisecond range in a model block copolymer micelle system revealing the underlying mechanism and...
8.
Zinn T, Willner L, Pipich V, Richter D, Lund R
ACS Macro Lett . 2022 May; 4(6):651-655. PMID: 35596408
Here we systematically study the equilibrium molecular exchange kinetics of a series of amphiphilic -alkyl-poly(ethylene oxide) (C-PEO) micelles containing partly crystallized cores. Using differential scanning calorimetry (DSC), we determined the...
9.
Appel M, Borisov G, Holderer O, Appavou M, Zorn R, Lehnert W, et al.
RSC Adv . 2022 May; 9(65):37768-37777. PMID: 35541766
The present study focuses on quasielastic neutron scattering (QENS) of the proton dynamics in phosphoric acid (PA) inside the catalytic layer of high-temperature polymer electrolyte fuel cells (HT-PEFCs). The nanosecond...
10.
Sharma A, Kruteva M, Zamponi M, Ehlert S, Richter D, Forster S
J Chem Phys . 2022 Apr; 156(16):164908. PMID: 35490007
We study the dynamics of pure oleic acid and grafted oleic acid synthesized by decomposing iron oleate into oleic acid grafted iron oxide nanoparticles. Our quasielastic neutron scattering study shows...