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Volume 11
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10.3390/polym11122006
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Article

Star-Shaped Poly(2-ethyl-2-oxazoline) and Poly(2-isopropyl-2-oxazoline) with Central Thiacalix[4]Arene Fragments: Reduction and Stabilization of Silver Nanoparticles

by
Alexey Lezov
1,
Alexander Gubarev
1,
Maria Mikhailova
1,
Alexandra Lezova
1,
Nina Mikusheva
1,
Vladimir Kalganov
1,
Marina Dudkina
2,
Andrey Ten’kovtsev
2,
Tatyana Nekrasova
2,
Larisa Andreeva
2,
Natalia Saprykina
2,
Ruslan Smyslov
2,3,
Yulia Gorshkova
4,
Dmitriy Romanov
5,
Stephanie Höppener
6,7,
Igor Perevyazko
1 and
Nikolay Tsvetkov
1,*
1
Department of Molecular Biophysics and Polymer Physics, St. Petersburg State University, Universitetskaya emb., 7/9, 199034 St. Petersburg, Russia
2
Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi pr. 31, 199004 St. Petersburg, Russia
3
Institute of Biomedical Systems and Technologies, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, 195251 St. Petersburg, Russia
4
Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia
5
Institute of Silicate Chemistry of the Russian Academy of Sciences, Adm. Makarova emb. 2, 199034 St. Petersburg, Russia
6
Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldt Straße 10, 07743 Jena, Germany
7
Jena Center for Soft Matter (JCSM), Philosophenweg 7, 07743 Jena, Germany
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(12), 2006; https://doi.org/10.3390/polym11122006
Received: 6 November 2019 / Revised: 27 November 2019 / Accepted: 29 November 2019 / Published: 4 December 2019
(This article belongs to the Special Issue Polymer Structures in Solution)
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Abstract

The interaction of silver nitrate with star-shaped poly(2-ethyl-2-oxazoline) and poly(2-isopropyl-2-oxazoline) containing central thiacalix[4]arene cores, which proceeds under visible light in aqueous solutions at ambient temperature, was studied. It was found that this process led to the formation of stable colloidal solutions of silver nanoparticles. The kinetics of the formation of the nanoparticles was investigated by the observation of a time-dependent increase in the intensity of the plasmon resonance peak that is related to the nanoparticles and appears in the range of 400 to 700 nm. According to the data of electron and X-ray spectroscopy, scanning and transmission electron microscopy, X-ray diffraction analysis, and dynamic light scattering, the radius of the obtained silver nanoparticles is equal to 30 nm. In addition, the flow birefringence experiments showed that solutions of nanoparticles have high optical shear coefficients. View Full-Text
Keywords: silver nanoparticles; star-shaped polymer; colloidal solution; temperature-responsive polymers silver nanoparticles; star-shaped polymer; colloidal solution; temperature-responsive polymers
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MDPI and ACS Style

Lezov, A.; Gubarev, A.; Mikhailova, M.; Lezova, A.; Mikusheva, N.; Kalganov, V.; Dudkina, M.; Ten’kovtsev, A.; Nekrasova, T.; Andreeva, L.; Saprykina, N.; Smyslov, R.; Gorshkova, Y.; Romanov, D.; Höppener, S.; Perevyazko, I.; Tsvetkov, N. Star-Shaped Poly(2-ethyl-2-oxazoline) and Poly(2-isopropyl-2-oxazoline) with Central Thiacalix[4]Arene Fragments: Reduction and Stabilization of Silver Nanoparticles. Polymers 2019, 11, 2006. https://doi.org/10.3390/polym11122006

AMA Style

Lezov A, Gubarev A, Mikhailova M, Lezova A, Mikusheva N, Kalganov V, Dudkina M, Ten’kovtsev A, Nekrasova T, Andreeva L, Saprykina N, Smyslov R, Gorshkova Y, Romanov D, Höppener S, Perevyazko I, Tsvetkov N. Star-Shaped Poly(2-ethyl-2-oxazoline) and Poly(2-isopropyl-2-oxazoline) with Central Thiacalix[4]Arene Fragments: Reduction and Stabilization of Silver Nanoparticles. Polymers. 2019; 11(12):2006. https://doi.org/10.3390/polym11122006

Chicago/Turabian Style

Lezov, Alexey, Alexander Gubarev, Maria Mikhailova, Alexandra Lezova, Nina Mikusheva, Vladimir Kalganov, Marina Dudkina, Andrey Ten’kovtsev, Tatyana Nekrasova, Larisa Andreeva, Natalia Saprykina, Ruslan Smyslov, Yulia Gorshkova, Dmitriy Romanov, Stephanie Höppener, Igor Perevyazko, and Nikolay Tsvetkov. 2019. "Star-Shaped Poly(2-ethyl-2-oxazoline) and Poly(2-isopropyl-2-oxazoline) with Central Thiacalix[4]Arene Fragments: Reduction and Stabilization of Silver Nanoparticles" Polymers 11, no. 12: 2006. https://doi.org/10.3390/polym11122006

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