Journal Article

FZJ-2021-03981

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Mesostructure of Composite Materials Based on Segmented Poly(Urethane Imide) Containing Ferrite Nanoparticles

Runov, V. V. ; Bugrov, A. N. (Corresponding author) ; Smyslov, R. Y. ; Kopitsa, G. P. ; Runova, M. K. ; Vasil’ev, B. V. ; Popova, E. N. ; Kirillova, S. A. ; Feoktystov, A.FZJ* ; Pipich, V.FZJ*

2021
MAIK Nauka/Interperiodica Publ. Moscow

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Please use a persistent id in citations: doi:10.1134/S0036023621020170

Abstract: The mesostructure of segmented poly(urethane imide) containing 4–10 wt % CoFe2O4 orAl3Fe5O12 nanoparticles was experimentally studied by small-angle polarized neutron scattering, which cananalyze the nuclear and magnetic subsystems of the obtained composites. The transformation of the domainstructure of the magnetic elastomers based on poly(urethane imide) was investigated at various concentra-tions, chemical compositions, and localizations of ferrite nanoparticles in polymer chains. The dynamics ofthe change in the segmental mobility of soft blocks during heating of samples was characterized by magnetic–nuclear interference scattering. The experiments detected changes in the supramolecular structure of themultiblock copolymer, which depended on the percentage and type of nanoparticles. The correlation radiiwere determined in the magnetic subsystem of ferrite nanoparticles embedded in hard aromatic blocks ofpoly(urethane imide) as nodes of intermolecular crosslinkers and chain extenders. The temperature depen-dence was analyzed for the intensity of small-angle nuclear scattering by poly(urethane imide) and magneticelastomers based on it, under the conditions of the transition of soft aliphatic segments from the glassy to thehighly elastic state.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Chemistry (2nd) ; Condensed Matter Physics (2nd) ; Magnetism (2nd) ; Materials Science (2nd)

Note: Kein Post print vorhanden

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Streumethoden (JCNS-2)
3. JCNS-4 (JCNS-4)
4. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)
2. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)

Experiment(s):

1. KWS-1: Small angle scattering diffractometer (NL3b)
2. KWS-3: Very small angle scattering diffractometer with focusing mirror (NL3auS)

Appears in the scientific report 2021

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Database coverage:
Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Springer ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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