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Amphiphilic Diblock Copolymers Bearing Poly(Ethylene Glycol) Block: Hydrodynamic Properties in Organic Solvents and Water Micellar Dispersions, Effect of Hydrophobic Block Chemistry on Dispersion Stability and Cytotoxicity. Polymers (Basel) 2022; 14:polym14204361. [PMID: 36297939 PMCID: PMC9612359 DOI: 10.3390/polym14204361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Despite the fact that amphiphilic block copolymers have been studied in detail by various methods both in common solvents and aqueous dispersions, their hydrodynamic description is still incomplete. In this paper, we present a detailed hydrodynamic study of six commercial diblock copolymers featuring the same hydrophilic block (poly(ethylene glycol), PEG; degree of polymerization is ca. 110 ± 25) and the following hydrophobic blocks: polystyrene, PS35-b-PEG115; poly(methyl methacrylate), PMMA55-b-PEG95; poly(1,4-butadyene), PBd90-b-PEG130; polyethylene PE40-b-PEG85; poly(dimethylsiloxane), PDMS15-b-PEG115; and poly(ɛ-caprolactone), PCL45-b-PEG115. The hydrodynamic properties of block copolymers are investigated in both an organic solvent (tetrahydrofuran) and in water micellar dispersions by the combination of static/dynamic light scattering, viscometry, and analytical ultracentrifugation. All the micellar dispersions demonstrate bimodal particle distributions: small compact (hydrodynamic redii, Rh ≤ 17 nm) spherical particles ascribed to “conventional” core–shell polymer micelles and larger particles ascribed to micellar clusters. Hydrodynamic invariants are (2.4 ± 0.4) × 10−10 g cm2 s−2 K−1 mol−1/3 for all types of micelles used in the study. For aqueous micellar dispersions, in view of their potential biomedical applications, their critical micelle concentration values and cytotoxicities are also reported. The investigated micelles are stable towards precipitation, possess low critical micelle concentration values (with the exception of PDMS15-b-PEG115), and demonstrate low toxicity towards Chinese Hamster Ovarian (CHO-K1) cells.
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Gubarev AS, Lezov AA, Mikusheva NG, Perevyazko I, Senchukova AS, Lezova AA, Podsevalnikova AN, Rogozhin VB, Enke M, Winter A, Schubert US, Tsvetkov NV. Hydrodynamic Characteristics and Conformational Parameters of Ferrocene-Terpyridine-Based Polymers. Polymers (Basel) 2022; 14:polym14091776. [PMID: 35566943 PMCID: PMC9104623 DOI: 10.3390/polym14091776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/04/2022] [Accepted: 04/19/2022] [Indexed: 02/04/2023] Open
Abstract
Nowadays, the study of metallopolymers is one of the fastest growing areas of polymer science. Metallopolymers have great potential for application in multiple technological and various biomedical processes. The macromolecules with the possibility of varying the number and type of metal ions along the entire length of the polymer chain are of particular interest. In this regard, this study presents results on two successfully synthesized homopolymers, random and block copolymers based on PMMA, containing ferrocene and terpyridine moieties in the side chain. Different architectures of copolymers may attribute interesting properties when creating complexes with various metal ions. A detailed hydrodynamic study of these structures was carried out, the consistency of hydrodynamic data was established using the concept of a hydrodynamic invariant, the absolute values of the molar masses of the studied objects were calculated, and the conformational parameters of macromolecules were determined. Using the Fixman-Stockmayer theory, the equilibrium rigidities of the studied systems were calculated and the relationship between the chemical structure and conformational characteristics was established. The studied copolymers can be attributed to the class of flexible-chain macromolecules. An increase in the equilibrium rigidity value with an increase of the side chain, which is characteristic of comb-shaped polymers, was determined.
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Affiliation(s)
- Alexander S. Gubarev
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Alexey A. Lezov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Nina G. Mikusheva
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Igor Perevyazko
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Anna S. Senchukova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Alexandra A. Lezova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Anna N. Podsevalnikova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Vyacheslav B. Rogozhin
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Marcel Enke
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Correspondence: (U.S.S.); (N.V.T.)
| | - Nikolai V. Tsvetkov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
- Correspondence: (U.S.S.); (N.V.T.)
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Lezov A, Gubarev A, Kaiser T, Tobaschus W, Tsvetkov N, Nischang I, Schubert US, Frey H, Perevyazko I. “Hard” Sphere Behavior of “Soft”, Globular-like, Hyperbranched Polyglycerols – Extensive Molecular Hydrodynamic and Light Scattering Studies. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexey Lezov
- Department of Molecular Biophysics and Polymer Physics, Saint Petersburg State University, 199034, Universitetskaya nab. 7/9, Saint-Petersburg, Russia
| | - Alexander Gubarev
- Department of Molecular Biophysics and Polymer Physics, Saint Petersburg State University, 199034, Universitetskaya nab. 7/9, Saint-Petersburg, Russia
| | - Tobias Kaiser
- Institute of Organic Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Willi Tobaschus
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Nikolai Tsvetkov
- Department of Molecular Biophysics and Polymer Physics, Saint Petersburg State University, 199034, Universitetskaya nab. 7/9, Saint-Petersburg, Russia
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Igor Perevyazko
- Department of Molecular Biophysics and Polymer Physics, Saint Petersburg State University, 199034, Universitetskaya nab. 7/9, Saint-Petersburg, Russia
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Kuchkina NV, Haskell AK, Sorokina SA, Torozova AS, Nikoshvili LZ, Sulman EM, Stein BD, Morgan DG, Bronstein LM, Shifrina ZB. Pd Catalyst Based on Hyperbranched Polypyridylphenylene Formed In Situ on Magnetic Silica Allows for Excellent Performance in Suzuki-Miyaura Reaction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22170-22178. [PMID: 32320210 DOI: 10.1021/acsami.0c04357] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here, for the first time, we developed a catalytic composite by forming a thin layer of a cross-linked hyperbranched pyridylphenylene polymer (PPP) on the surface of mesoporous magnetic silica (Fe3O4-SiO2, MS) followed by complexation with Pd species. The interaction of Pd acetate (PdAc) with pyridine units of the polymer results in the formation of Pd2+ complexes which are evenly distributed through the PPP layer. The MS-PPP-PdAc catalyst was tested in the Suzuki-Miyaura cross-coupling reaction with four different para-Br-substituted arenes, demonstrating enhanced catalytic properties for substrates containing electron withdrawing groups, and especially, for 4-bromobenzaldehyde. In this case, 100% selectivity and conversion were achieved with TOF of >23 000 h-1 at a very low Pd loading (0.032 mol %), a remarkable performance in this reaction. We believe these exceptional catalytic properties are due to the hyperbranched polymer architecture, which allows excellent stabilization of catalytic species as well as a favorable space for reacting molecules. Additionally, the magnetic character of the support allows for easy magnetic separation during the catalyst synthesis, purification, and reuse, resulting in energy and materials savings. These factors and excellent reusability of MS-PPP-PdAc in five consecutive uses make this catalyst promising for a variety of catalytic reactions.
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Affiliation(s)
- Nina V Kuchkina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991, Russia
| | - Angela K Haskell
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Svetlana A Sorokina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991, Russia
| | - Alexandra S Torozova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991, Russia
| | - Linda Zh Nikoshvili
- Department of Biotechnology and Chemistry, Tver State Technical University, 22 A. Nikitina Street, 170026 Tver, Russia
| | - Esther M Sulman
- Department of Biotechnology and Chemistry, Tver State Technical University, 22 A. Nikitina Street, 170026 Tver, Russia
| | - Barry D Stein
- Department of Biology, Indiana University, 1001 East Third Street, Bloomington, Indiana 47405, United States
| | - David Gene Morgan
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Lyudmila M Bronstein
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991, Russia
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
- Faculty of Science, Department of Physics, King Abdulaziz University, P.O. Box 80303, Jeddah 21589, Saudi Arabia
| | - Zinaida B Shifrina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991, Russia
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Senchukova AS, Mikhailova ME, Gubarev AS, Lezov AA, Lebedeva EV, Makarov IA, Zorin IM, Tsvetkov NV. Molecular characteristics of polymerized surfactants: influence of introduced crosslinking agent and monomer concentration. POLYM INT 2019. [DOI: 10.1002/pi.5923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Anna S Senchukova
- Department of Molecular Biophysics and Physics of PolymersSt Petersburg State University St Petersburg Russia
| | - Mariya E Mikhailova
- Department of Molecular Biophysics and Physics of PolymersSt Petersburg State University St Petersburg Russia
| | - Alexander S Gubarev
- Department of Molecular Biophysics and Physics of PolymersSt Petersburg State University St Petersburg Russia
| | - Alexey A Lezov
- Department of Molecular Biophysics and Physics of PolymersSt Petersburg State University St Petersburg Russia
| | - Elena V Lebedeva
- Department of Molecular Biophysics and Physics of PolymersSt Petersburg State University St Petersburg Russia
| | - Ivan A Makarov
- Department of Macromolecular Chemistry, Institute of ChemistrySt Petersburg State University St Petersburg Russia
| | - Ivan M Zorin
- Department of Macromolecular Chemistry, Institute of ChemistrySt Petersburg State University St Petersburg Russia
| | - Nikolay V Tsvetkov
- Department of Molecular Biophysics and Physics of PolymersSt Petersburg State University St Petersburg Russia
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