3
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Scalambra F, Serrano-Ruiz M, Gudat D, Romerosa A. Amorphization of a Ru-Ru-Cd-Coordination Polymer at Low Pressure. ChemistrySelect 2016. [DOI: 10.1002/slct.201600242] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Franco Scalambra
- Departamento de Quimica y Fisica-CIESOL; Universidad de Almeria; 04120 Almeria Spain
| | - Manuel Serrano-Ruiz
- Departamento de Quimica y Fisica-CIESOL; Universidad de Almeria; 04120 Almeria Spain
| | - Dietrich Gudat
- Institut für Anorganische Chemie; Universität Stuttgart; Pfaffenwaldring 55 Stuttgart Germany
| | - Antonio Romerosa
- Departamento de Quimica y Fisica-CIESOL; Universidad de Almeria; 04120 Almeria Spain
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4
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Suárez-Suárez S, Carriedo GA, Presa Soto A. Reversible Morphological Evolution of Responsive Giant Vesicles to Nanospheres by the Self-Assembly of Crystalline-b-Coil Polyphosphazene Block Copolymers. Chemistry 2016; 22:4483-91. [PMID: 26880712 DOI: 10.1002/chem.201504733] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Indexed: 01/01/2023]
Abstract
The preparation of long-term-stable giant unilamellar vesicles (GUVs, diameter ≥ 1000 nm) and large vesicles (diameter ≥ 500 nm) by self-assembly in THF of the crystalline-b-coil polyphosphazene block copolymers [N=P(OCH2CF3)2 ]n-b-[N=PMePh]m (4 a: n=30, m=20; 4 b: n=90, m=20; 4 c: n=200, m=85), which combine crystalline [N=P(OCH2CF3)2] and amorphous [N=PMePh] blocks, both of which are flexible, is reported. SEM, TEM, and wide-angle X-ray scattering experiments demonstrated that the stability of these GUVs is induced by crystallization of the [N=P(OCH2CF3)2] blocks at the capsule wall of the GUVS, with the [N=PMePh] blocks at the corona. Higher degrees of crystallinity of the capsule wall are found in the bigger vesicles, which suggests that the crystallinity of the [N=P(OCH2CF3)2] block facilitates the formation of large vesicles. The GUVs are responsive to strong acids (HOTf) and, after selective protonation of the [N=PMePh] block, they undergo a morphological evolution to smaller spherical micelles in which the core and corona roles have been inverted. This morphological evolution is totally reversible by neutralization with a base (NEt3), which regenerates the original GUVs. The monitoring of this process by dynamic light scattering allowed a mechanism to to be proposed for this reversible morphological evolution in which the block copolymer 4 a and its protonated form 4 a(+) are intermediates. This opens a route to the design of reversibly responsive polymeric systems in organic solvents. This is the first reversibly responsive vesicle system to operate in organic media.
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Affiliation(s)
- Silvia Suárez-Suárez
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain
| | - Gabino A Carriedo
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain
| | - Alejandro Presa Soto
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain.
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5
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Chen CH, Niko Y, Konishi GI. Amphiphilic gels of solvatochromic fluorescent poly(2-oxazoline)s containing D–π–A pyrenes. RSC Adv 2016. [DOI: 10.1039/c6ra06251b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report amphiphilic, fluorescent, solvatochromic poly(2-methyl-2-oxazoline) (POZO-py) and poly(2-ethyl-2-oxazoline) (PEtOZO-py), which contain D–π–A pyrene dye units in their side chains.
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Affiliation(s)
- Chia-Hsiu Chen
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Yosuke Niko
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Gen-ichi Konishi
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
- PRESTO
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6
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Wendler F, Rudolph T, Görls H, Jasinski N, Trouillet V, Barner-Kowollik C, Schacher FH. Maleimide-functionalized poly(2-ethyl-2-oxazoline): synthesis and reactivity. Polym Chem 2016. [DOI: 10.1039/c6py00033a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(2-ethyl-2-oxazoline)s end-functionalized with a maleimide moiety were prepared from azide-terminated PEtOxx-N3viacopper-catalyzed azide–alkyne cycloaddition (CuAAC) with an alkyne-bearing maleimide (MI).
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Affiliation(s)
- Felix Wendler
- Institute of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Tobias Rudolph
- Institute of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry (IAAC)
- Friedrich Schiller University Jena
- D-07743 Jena
- Germany
| | - Nils Jasinski
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe
- Germany
| | - Vanessa Trouillet
- Institut für Angewandte Materialien (IAM) and Karlsruhe Nano Micro Facility (KNMF)
- Karlsruhe Institute of Technology (KIT)
- 76344 Eggenstein-Leopoldshafen
- Germany
| | - Christopher Barner-Kowollik
- Preparative Macromolecular Chemistry
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe
- Germany
| | - Felix H. Schacher
- Institute of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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7
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Rudolph T, von der Lühe M, Hartlieb M, Norsic S, Schubert US, Boisson C, D'Agosto F, Schacher FH. Toward Anisotropic Hybrid Materials: Directional Crystallization of Amphiphilic Polyoxazoline-Based Triblock Terpolymers. ACS NANO 2015; 9:10085-10098. [PMID: 26372093 DOI: 10.1021/acsnano.5b03660] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present the design and synthesis of a linear ABC triblock terpolymer for the bottom-up synthesis of anisotropic organic/inorganic hybrid materials: polyethylene-block-poly(2-(4-(tert-butoxycarbonyl)amino)butyl-2-oxazoline)-block-poly(2-iso-propyl-2-oxazoline) (PE-b-PBocAmOx-b-PiPrOx). The synthesis was realized via the covalent linkage of azide-functionalized polyethylene and alkyne functionalized poly(2-alkyl-2-oxazoline) (POx)-based diblock copolymers exploiting copper-catalyzed azide-alkyne cycloaddition (CuAAC) chemistry. After purification of the resulting triblock terpolymer, the middle block was deprotected, resulting in a primary amine in the side chain. In the next step, solution self-assembly into core-shell-corona micelles in aqueous solution was investigated by dynamic light scattering (DLS) and transmission electron microscopy (TEM). Subsequent directional crystallization of the corona-forming block, poly(2-iso-propyl-2-oxazoline), led to the formation of anisotropic superstructures as demonstrated by electron microscopy (SEM and TEM). We present hypotheses concerning the aggregation mechanism as well as first promising results regarding the selective loading of individual domains within such anisotropic nanostructures with metal nanoparticles (Au, Fe3O4).
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Affiliation(s)
- Tobias Rudolph
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena , Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena , Philosophenweg 7, D-07743 Jena, Germany
| | - Moritz von der Lühe
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena , Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena , Philosophenweg 7, D-07743 Jena, Germany
| | - Matthias Hartlieb
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena , Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena , Philosophenweg 7, D-07743 Jena, Germany
| | - Sebastien Norsic
- Université de Lyon , CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie, Catalyse, Polymères et Procédés (C2P2), Equipe LCPP, Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena , Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena , Philosophenweg 7, D-07743 Jena, Germany
| | - Christophe Boisson
- Université de Lyon , CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie, Catalyse, Polymères et Procédés (C2P2), Equipe LCPP, Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
| | - Franck D'Agosto
- Université de Lyon , CPE Lyon, CNRS UMR 5265 Laboratoire de Chimie, Catalyse, Polymères et Procédés (C2P2), Equipe LCPP, Bat 308F, 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, France
| | - Felix H Schacher
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena , Humboldtstraße 10, D-07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena , Philosophenweg 7, D-07743 Jena, Germany
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8
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Rudolph T, Nunns A, Stumpf S, Pietsch C, Schacher FH. Hierarchical Self-Assembly of Double-Crystalline Poly(ferrocenyldimethylsilane)-block
-poly(2-iso
-propyl-2-oxazoline) (PFDMS-b
-Pi
PrOx) Block Copolymers. Macromol Rapid Commun 2015; 36:1651-7. [DOI: 10.1002/marc.201500245] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 05/29/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Tobias Rudolph
- Laboratory of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Adam Nunns
- School of Chemistry; University of Bristol; Bristol BS8 1TS UK
| | - Steffi Stumpf
- Laboratory of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Christian Pietsch
- Laboratory of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Felix H. Schacher
- Laboratory of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
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9
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Alkan A, Thomi L, Gleede T, Wurm FR. Vinyl ferrocenyl glycidyl ether: an unprotected orthogonal ferrocene monomer for anionic and radical polymerization. Polym Chem 2015. [DOI: 10.1039/c5py00404g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vinyl ferrocenyl glycidyl ether (VfcGE) is the first ferrocene-based, orthogonal monomer for both anionic and radical polymerization to generate polyvalent and redox-active materials.
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Affiliation(s)
- Arda Alkan
- Max Planck Institute for Polymer Research (MPIP)
- 55128 Mainz
- Germany
- Institute of Organic Chemistry
- Johannes Gutenberg-Universität Mainz (JGU)
| | - Laura Thomi
- Max Planck Institute for Polymer Research (MPIP)
- 55128 Mainz
- Germany
| | - Tassilo Gleede
- Institute of Organic Chemistry
- Johannes Gutenberg-Universität Mainz (JGU)
- 55099 Mainz
- Germany
| | - Frederik R. Wurm
- Max Planck Institute for Polymer Research (MPIP)
- 55128 Mainz
- Germany
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10
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Shi P, Zhou H, Gao C, Wang S, Sun P, Zhang W. Macro-RAFT agent mediated dispersion copolymerization: a small amount of solvophilic co-monomer leads to a great change. Polym Chem 2015. [DOI: 10.1039/c5py00697j] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The macro-RAFT agent mediated dispersion copolymerization of two monomers is performed, and the block copolymer morphology can be easily tuned.
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Affiliation(s)
- Pengfei Shi
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Heng Zhou
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Shuang Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Pingchuan Sun
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
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