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Höhner JR, Gumerov RA, Potemkin II, Rodriguez-Emmenegger C, Kostina NY, Mourran A, Englert J, Schröter D, Janke L, Möller M. Globular Hydrophilic Poly(acrylate)s by an Arborescent Grafting-from Synthesis. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Robin Höhner
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen 52074, Germany
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Rustam A. Gumerov
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
- Physics Department, Lomonosov Moscow State University, Moscow 119991, Russian Federation
| | - Igor I. Potemkin
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
- Physics Department, Lomonosov Moscow State University, Moscow 119991, Russian Federation
- National Research South Ural State University, Chelyabinsk 454080, Russian Federation
| | | | - Nina Yu. Kostina
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Ahmed Mourran
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Jenny Englert
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen 52074, Germany
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - David Schröter
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen 52074, Germany
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Lennart Janke
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen 52074, Germany
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Martin Möller
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen 52074, Germany
- DWI Leibniz Institute for Interactive Materials, Aachen 52056, Germany
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991, Russia
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Tikhonov PA, Vasilenko NG, Muzafarov AM. Multiarm Star Polymers. Fundamental Aspects. A Review. DOKLADY CHEMISTRY 2021. [DOI: 10.1134/s001250082101002x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Dockendorff J, Mourran A, Gumerov RA, Potemkin II, Möller M, Gauthier M. Metal Coordination Induces Phase Segregation in Amphipolar Arborescent Copolymers with a Core-Shell-Corona Architecture. Macromolecules 2020; 53:8108-8122. [PMID: 35516458 PMCID: PMC9062874 DOI: 10.1021/acs.macromol.0c00778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/07/2020] [Indexed: 01/08/2023]
Abstract
Arborescent copolymers with a core-shell-corona (CSC) architecture were synthesized and the topology of the molecules was challenged (constrained) through intramolecular interactions, resulting in phase separation breaking the symmetry of radial density. The inner poly(2-vinylpyridine) shell of these arborescent polystyrene-g-[poly(2-vinylpyridine)-b-polystyrene] molecules can self-assemble by binding metallic salts and acids in apolar and intermediate-polarity solvents. Upon loading with HAuCl4, the characteristics of the polymer templates govern the "loading sites" of the metal within the molecules. Unique morphologies were observed for the metal-loaded G0-G4 arborescent copolymers investigated, namely, spherical, toroidal, raspberry-like, spherical nanocage, and a new worm-in-sphere morphology. The reason for the emergence of such morphologies is the interplay among intramolecular interactions of unlike polymer segments, solvent selectivity, the entropic elasticity of the arborescent substrate, and phase segregation induced by coordination with the charged metallic species. Meanwhile, the stability of the arborescent molecules against aggregation provides intramolecular phase segregation with imposed "confined" geometry and thus leads to nonconventional morphologies. Furthermore, the size of the arborescent molecules is much smaller than that of other known particles (droplets) serving as confined geometries. Computer simulations were used to model the mesostructure of the arborescent copolymers, to demonstrate the influence of solvent selectivity, together with HAuCl4 loading, on the evolution of the morphology of the macromolecules.
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Affiliation(s)
- Jason Dockendorff
- Department
of Chemistry, Institute for Polymer Research and Waterloo Institute
for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Ahmed Mourran
- DWI-Leibniz
Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Rustam A. Gumerov
- DWI-Leibniz
Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
- Physics
Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation
| | - Igor I. Potemkin
- DWI-Leibniz
Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
- Physics
Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation
- South
Ural State University (National Research University), Chelyabinsk 454080, Russian Federation
| | - Martin Möller
- DWI-Leibniz
Institute for Interactive Materials, Forckenbeckstr. 50, D-52056 Aachen, Germany
| | - Mario Gauthier
- Department
of Chemistry, Institute for Polymer Research and Waterloo Institute
for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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Gumerov RA, Rudov AA, Richtering W, Möller M, Potemkin II. Amphiphilic Arborescent Copolymers and Microgels: From Unimolecular Micelles in a Selective Solvent to the Stable Monolayers of Variable Density and Nanostructure at a Liquid Interface. ACS APPLIED MATERIALS & INTERFACES 2017; 9:31302-31316. [PMID: 28394566 DOI: 10.1021/acsami.7b00772] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Amphiphilic arborescent block copolymers of two generations (G2 and G3) and polymer microgels, obtained via cross-linking of diblock copolymers, were studied in a selective solvent and at liquid interface via dissipative particle dynamics (DPD) simulations. Depending on the primary structure, single arborescent macromolecules in selective solvent can have both core-corona and multicore structures. Self-assembly of the G2, G3, and microgels in the selective solvent is compared with equivalent linear diblock copolymers. The latter self-assemble into spherical micelles of large enough aggregation number. On the contrary, stability of unimolecular micelles is a feature of the arborescent copolymers and microgels, whereas their ability to aggregate is very low. Adsorption of the single molecules at liquid (oil-water) interface leads to their flattening and segregation of the amphiphilic blocks: hydrophilic and hydrophobic blocks are exposed toward water and oil, respectively. Depending on the character of interactions between monomer units, which can be controlled by temperature or solvent(s) quality, Janus, patchy, and nanosegregated structures can be formed within the macromolecules. Their self-assembly at the interface can lead to the formation of both loose and dense monolayers, which can be homogeneous and nanostructured. The pretty fast adsorption kinetics of G2 macromolecules make them efficient stabilizers of emulsions.
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Affiliation(s)
- Rustam A Gumerov
- Physics Department, Lomonosov Moscow State University , Moscow 119991, Russian Federation
- DWI-Leibniz Institute for Interactive Materials , Aachen 52056, Germany
| | - Andrey A Rudov
- Physics Department, Lomonosov Moscow State University , Moscow 119991, Russian Federation
- DWI-Leibniz Institute for Interactive Materials , Aachen 52056, Germany
| | - Walter Richtering
- Institute of Physical Chemistry, RWTH Aachen University , Aachen 52056, Germany
| | - Martin Möller
- DWI-Leibniz Institute for Interactive Materials , Aachen 52056, Germany
| | - Igor I Potemkin
- Physics Department, Lomonosov Moscow State University , Moscow 119991, Russian Federation
- DWI-Leibniz Institute for Interactive Materials , Aachen 52056, Germany
- National Research South Ural State University , Chelyabinsk 454080, Russian Federation
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Gauthier M. Arborescent Graft Polymers. ENCYCLOPEDIA OF POLYMERIC NANOMATERIALS 2013:1-8. [DOI: 10.1007/978-3-642-36199-9_23-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 09/10/2013] [Indexed: 09/02/2023]
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Carletto A, Cardozo AF, Suriano R, Manoury E, Turri S, Poli R. Core Cross-Linked Amphiphilic Star-Block Copolymers with (Meth)acrylic Acid Shells Prepared by Atom Transfer Radical Polymerization. Isr J Chem 2012. [DOI: 10.1002/ijch.201100125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhao L, Byun M, Rzayev J, Lin Z. Polystyrene−Polylactide Bottlebrush Block Copolymer at the Air/Water Interface. Macromolecules 2009. [DOI: 10.1021/ma9016345] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lei Zhao
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - Myunghwan Byun
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - Javid Rzayev
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000
| | - Zhiqun Lin
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
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Xiong SD, Li L, Wu SL, Xu ZS, Chu PK. Synthesis and properties of fluorine-containing amphiphilic graft copolymer P(HFMA)-g-P(SPEG). ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23541] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Tan JF, Blencowe A, Goh TK, Dela Cruz ITM, Qiao GG. A General Method for the Synthesis and Isolation of Well-Defined Core Cross-Linked Multistar Assemblies: A Route toward Enhanced pH-Responsive Polymers. Macromolecules 2009. [DOI: 10.1021/ma802834x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Fung Tan
- Polymer Science Group, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Anton Blencowe
- Polymer Science Group, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Tor Kit Goh
- Polymer Science Group, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Irving Ted M. Dela Cruz
- Polymer Science Group, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Greg G. Qiao
- Polymer Science Group, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia
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Njikang GN, Cao L, Gauthier M. Pressure- and temperature-induced association of arborescent polystyrene-graft-poly(ethylene oxide) copolymers at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:12919-12927. [PMID: 18850728 DOI: 10.1021/la802163k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The influence of surface pressure and subphase temperature on the association of arborescent polystyrene- graft-poly(ethylene oxide) (PS- g-PEO) copolymers at the air-water interface was investigated using the Langmuir balance and atomic force microscopy (AFM) techniques. These dendritic molecules form stable condensed monolayers with surface compressional moduli >250 mN/m. The variation in film thickness observed as a function of surface pressure suggests that at low surface pressures (gaslike phase) the PEO chains remain adsorbed at the air-water interface. At higher surface pressures (condensed phase), the PEO chains partially desorb into the subphase and adopt a more brushlike conformation. Large islandlike clusters with a broad size distribution were observed for samples with PEO contents of up to 15% by weight. In contrast, copolymers with PEO contents of 22-43% displayed enhanced side-by-side association into ribbonlike superstructures upon compression. The same effect was observed even in the absence of compression when the subphase temperature was increased from 12 to 27 degrees C. The temperature-induced association was attributed to increased van der Waals attractive forces between the PS cores relative to the steric repulsive forces between PEO chains in the coronas because the solvent quality for the PEO segments decreased at higher temperatures. The restricted number of superstructures observed for arborescent copolymers as compared with linear- and star-branched PS-PEO block copolymers is attributed to the enhanced structural rigidity of the molecules due to branching.
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Affiliation(s)
- Gabriel N Njikang
- Department of Chemistry, Institute for Polymer Research, University of Waterloo, Ontario, Canada
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