Chain Confinement and Anomalous Diffusion in the Cross over Regime between Rouse and Reptation.

Polymers / chemistry Polyethylene Glycols / chemistry Diffusion Magnetic Resonance Spectroscopy

Journal

ACS macro letters
ISSN: 2161-1653
Titre abrégé: ACS Macro Lett
Pays: United States
ID NLM: 101574672

Informations de publication

Date de publication:
20 12 2022
Historique:
pubmed: 22 11 2022
medline: 22 12 2022
entrez: 21 11 2022
Statut: ppublish

Résumé

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 and reptation dynamics. We analyze the data with a Rouse mode analysis allowing for reduced long wavelength Rouse modes amplitudes. For short times, subdiffusive center-of-mass mean square displacement ⟨

Identifiants

DOI: 10.1021/acsmacrolett.2c00608 PMID: 36409674
pubmed: 36409674
doi: 10.1021/acsmacrolett.2c00608
doi:

Substances chimiques

Polymers 0
Polyethylene Glycols 3WJQ0SDW1A

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

1343-1348

Auteurs

Aakash Sharma (A)

Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1: Neutron Scattering and Biological Matter), 52425Jülich, Germany.
ORCID: 0000-0002-3635-0059

Margarita Kruteva (M)

Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1: Neutron Scattering and Biological Matter), 52425Jülich, Germany.
ORCID: 0000-0002-7686-0934

Jürgen Allgaier (J)

Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1: Neutron Scattering and Biological Matter), 52425Jülich, Germany.
ORCID: 0000-0002-9276-597X

Ingo Hoffmann (I)

Institut Max von Laue-Paul Langevin (ILL), 71 avenue des Martyrs, CS 20156, Cedex 9, F-38042Grenoble, France.
ORCID: 0000-0001-7178-6467

Peter Falus (P)

Institut Max von Laue-Paul Langevin (ILL), 71 avenue des Martyrs, CS 20156, Cedex 9, F-38042Grenoble, France.

Michael Monkenbusch (M)

Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1: Neutron Scattering and Biological Matter), 52425Jülich, Germany.
ORCID: 0000-0001-6733-832X

Dieter Richter (D)

Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1: Neutron Scattering and Biological Matter), 52425Jülich, Germany.

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Classifications MeSH

questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Matériaux biomédicaux et dentaires › Polymères › Chain Confinement and Anomalous Diffusion in...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Matériaux biomédicaux et dentaires › Polymères › Polyéthylène glycols › Chain Confinement and Anomalous Diffusion in...
questionsmedicales.fr › Phénomènes chimiques › Diffusion › Chain Confinement and Anomalous Diffusion in...
questionsmedicales.fr › Techniques d'investigation › Techniques de chimie analytique › Analyse spectrale › Spectroscopie par résonance magnétique › Chain Confinement and Anomalous Diffusion in...