1
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Neumann N, Thinius S, Abels G, Hartwig A, Koschek K, Boskamp L. Multifunctional hyperbranched prepolymers with tailored degree of methylation and methacrylation. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Ikeda T. Poly(ionic liquid)s with branched side chains: polymer design for breaking the conventional record of ionic conductivity. Polym Chem 2021. [DOI: 10.1039/d0py01333a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Poly(ionic liquid)s with branched side chains can break the conventional record of ionic conductivity of single-ion conductors.
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Affiliation(s)
- Taichi Ikeda
- Research Center for Functional Materials
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
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3
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Xu G, Liu K, Xu B, Yao Y, Li W, Yan J, Zhang A. Confined Microenvironments from Thermoresponsive Dendronized Polymers. Macromol Rapid Commun 2020; 41:e2000325. [PMID: 32639094 DOI: 10.1002/marc.202000325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/23/2020] [Indexed: 11/07/2022]
Abstract
Confined microenvironments in biomacromolecules arising from molecular crowding account for their well-defined biofunctions and bioactivities. To mimick this, synthetic polymers to form confined structures or microenvironments are of key scientific value, which have received significant attention recently. To create synthetic confined microenvironments, molecular crowding effects and topological cooperative effects have been applied successfully, and the key is balance between self-association of structural units and self-repulsion from crowding-induced steric hindrance. In this article, formation of confined microenvironments from stimuli-responsive dendronized polymers carrying densely dendritic oligoethylene glycols (OEGs) moieties in their pendants is presented. These wormlike thick macromolecules exhibit characteristic thermoresponsive properties, which can provide constrained microenvironments to encapsulate effectively guest molecules including dyes, proteins, or nucleic acids to prevent their protonation or biodegradation. This efficient shielding effect can also mediate chemical reactions in aqueous phase, and even enhance chirality transferring efficiency. All of these can be switched off simply through the thermally-induced dehydration and collapse of OEG dendrons due to the amphiphilicity of OEG chains. Furthermore, the switchable encapsulation and release of guests can be greatly enhanced when these dendronized polymers are used as major constituents for fabricating bulk hydrogels or nanogels, which provide a higher-level confinement.
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Affiliation(s)
- Gang Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Kun Liu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Biyi Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Yi Yao
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Wen Li
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Jiatao Yan
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Afang Zhang
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
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4
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Liu X, Liu F, Liu W, Gu H. ROMP and MCP as Versatile and Forceful Tools to Fabricate Dendronized Polymers for Functional Applications. POLYM REV 2020. [DOI: 10.1080/15583724.2020.1723022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiong Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
| | - Fangfei Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
| | - Wentao Liu
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
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5
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Costanzo S, Scherz L, Floudas G, Pasquino R, Kröger M, Schlüter AD, Vlassopoulos D. Hybrid Dendronized Polymers as Molecular Objects: Viscoelastic Properties in the Melt. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Salvatore Costanzo
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, Heraklion 70013, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 71003, Crete, Greece
- DICMAPI, University of Naples, P.le Tecchio 80, Naples 80125, Italy
| | - Leon Scherz
- Polymer Chemistry and Polymer Physics, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - George Floudas
- Department of Physics, University of Ioannina, 45110 Ioannina, Greece
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
| | - Rossana Pasquino
- DICMAPI, University of Naples, P.le Tecchio 80, Naples 80125, Italy
| | - Martin Kröger
- Polymer Chemistry and Polymer Physics, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - A. Dieter Schlüter
- Polymer Chemistry and Polymer Physics, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - Dimitris Vlassopoulos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology—Hellas, Heraklion 70013, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion 71003, Crete, Greece
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6
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Messmer D, Bertran O, Kissner R, Alemán C, Schlüter AD. Main-chain scission of individual macromolecules induced by solvent swelling. Chem Sci 2019; 10:6125-6139. [PMID: 31360419 PMCID: PMC6585601 DOI: 10.1039/c9sc01639b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/08/2019] [Indexed: 11/21/2022] Open
Abstract
We present a comprehensive investigation of main-chain scission processes affecting peripherally charged and neutral members of a class of dendronized polymers (DPs) studied in our laboratory. In these thick, sterically highly congested macromolecules, scission occurs by exposure to solvents, in some cases at room temperature, in others requiring modest heating. Our investigations rely on gel permeation chromatography and atomic force microscopy and are supported by molecular dynamics simulations as well as by electron paramagnetic resonance spectroscopy. Strikingly, DP main-chain scission depends strongly on two factors: first the solvent, which must be highly polar to induce scission of the DPs, and second the dendritic generation g. In DPs of generations 1 ≤ g ≤ 8, scission occurs readily only for g = 5, no matter whether the polymer is charged or neutral. Much more forcing conditions are required to induce degradation in DPs of g ≠ 5. We propose solvent swelling as the cause for the main-chain scission in these individual polymer molecules, explaining in particular the strong dependence on g: g < 5 DPs resemble classical polymers and are accessible to the strongly interacting, polar solvents, whereas g > 5 DPs are essentially closed off to solvent due to their more closely colloidal character. g = 5 DPs mark the transition between these two regimes, bearing strongly sterically congested side chains which are still solvent accessible to some degree. Our results suggest that, even in the absence of structural elements which favour scission such as cross-links, solvent swelling may be a generally applicable mechanochemical trigger. This may be relevant not only for DPs, but also for other types of sterically strongly congested macromolecules.
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Affiliation(s)
- Daniel Messmer
- Polymer Chemistry , Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , 8093 Zürich , Switzerland . ;
| | - Oscar Bertran
- Department of Physics , EETAC , Universitat Politècnica de Catalunya , c/ Esteve Terrades, 7 , 08860 , Castelldefels , Spain
| | - Reinhard Kissner
- Laboratory of Inorganic Chemistry , Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 3 , 8093 Zürich , Switzerland
| | - Carlos Alemán
- Departament d'Enginyeria Química (EEBE) , Barcelona Research Center for Multiscale Science and Engineering , Universitat Politècnica de Catalunya , C/ Eduard Maristany, 10-14, Ed. I2 , 08019 , Barcelona , Spain
| | - A Dieter Schlüter
- Polymer Chemistry , Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , 8093 Zürich , Switzerland . ;
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7
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Dutertre F, Bang KT, Vereroudakis E, Loppinet B, Yang S, Kang SY, Fytas G, Choi TL. Conformation of Tunable Nanocylinders: Up to Sixth-Generation Dendronized Polymers via Graft-Through Approach by ROMP. Macromolecules 2019; 52:3342-3350. [PMID: 31496546 PMCID: PMC6727591 DOI: 10.1021/acs.macromol.9b00457] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/05/2019] [Indexed: 01/06/2023]
Abstract
Well-defined dendronized polymers (denpols) bearing high-generation dendron are attractive nano-objects as high persistency provides distinct properties, contrast to the random coiled linear polymers However, their syntheses via graft-through approach have been very challenging due to their structural complexity and steric hindrance retarding polymerization. Here, we report the first example of the synthesis of poly(norbornene) (PNB) containing ester dendrons up to the sixth generation (G6) by ring-opening metathesis polymerization. This is the highest generation ever polymerized among dendronized polymers prepared by graft-through approach, producing denpols with molecular weight up to 1960 kg/mol. Combination of size-exclusion chromatography, light scattering, and neutron scattering allowed a thorough structural study of these large denpols in dilute solution. A semiflexible cylinder model was successfully applied to represent both the static and dynamic experimental quantities yielding persistent length (l p), cross-sectional radius (R cs), and contour length (L). The denpol persistency seemed to increase with generation, with l p reaching 27 nm (Kuhn length 54 nm) for PNB-G6, demonstrating a rod-like conformation. Poly(endo-tricycle[4.2.2.0]deca-3,9-diene) (PTD) denpols exhibited larger persistency than the PNB analogues of the same generation presumably due to the higher grafting density of the PTD denpols. As the dendritic side chains introduce shape anisotropy into the denpol backbone, future work will entail a study of these systems in the concentrated solutions and melts.
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Affiliation(s)
- Fabien Dutertre
- Institute
of Electronic Structure and Laser, FO.R.T.H, PO Box 1527, 71110 Heraklion, Greece
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
| | - Ki-Taek Bang
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Emmanouil Vereroudakis
- Institute
of Electronic Structure and Laser, FO.R.T.H, PO Box 1527, 71110 Heraklion, Greece
- Department
of Materials Science & Technology, University
of Crete, 71003 Heraklion, Crete, Greece
| | - Benoit Loppinet
- Institute
of Electronic Structure and Laser, FO.R.T.H, PO Box 1527, 71110 Heraklion, Greece
| | - Sanghee Yang
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Yun Kang
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - George Fytas
- Institute
of Electronic Structure and Laser, FO.R.T.H, PO Box 1527, 71110 Heraklion, Greece
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Tae-Lim Choi
- Department
of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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8
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Peterson GI, Bang KT, Choi TL. Mechanochemical Degradation of Denpols: Synthesis and Ultrasound-Induced Chain Scission of Polyphenylene-Based Dendronized Polymers. J Am Chem Soc 2018; 140:8599-8608. [DOI: 10.1021/jacs.8b05110] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gregory I. Peterson
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Ki-Taek Bang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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9
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Cai Y, Zheng M, Zhu Y, Chen XF, Li CY. Tunable Supramolecular Hexagonal Columnar Structures of Hydrogen-Bonded Copolymers Containing Two Different Sized Dendritic Side Chains. ACS Macro Lett 2017; 6:479-484. [PMID: 35610860 DOI: 10.1021/acsmacrolett.7b00145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polymer structures with tunable symmetry and sizes are desired for applications such as lithography, filtration membranes, and separation. Here we report the self-assembled supramolecular hexagonal columnar (ΦH) structures with tunable lattice size varying from 5 to 7 nm by constructing hydrogen-bonded copolymers bearing poly(4-vinylpyridine) (P4VP) and two dendritic molecular additives, 1-[4'-(3″,4″,5″-tridecyloxybenzoyloxy)phenyleneoxycarbonyl]-3-[(4″-hydroxyphenyl)oxycarbonyl]benzene (12CBP) and 4-hydroxyphenyl (3,4,5-tridecyloxy)benzoate (12CTB). Despite the distinct molecular size difference between 12CBP and 12CTB, the resulting ternary supramolecular copolymers, P4VP(12CBP)x(12CTB)y, possess a homogeneous ΦH phase at x ≥ 0.1 and y ≥ 0.2. Each column is constructed with P4VP as the backbone tethered with mixed side chains. The column diameter is between the size of the corresponding P4VP(12CBP)x+y and P4VP(12CTB)x+y and could be easily tuned by varying x and y. The enhancement of ΦH in supramolecular copolymers is attributed to the entropy effect of the mixed side chain and enthalpy effect from hydrogen bonding interaction of the P4VP backbone and two molecules (12CBP and 12CTB).
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Affiliation(s)
- Yongchen Cai
- Suzhou
Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu
Key Laboratory of Advanced Functional Polymer Design and Application,
State and Local Joint Engineering Laboratory for Novel Functional
Polymeric Materials, College of Chemistry, Chemical Engineering and
Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Meiqing Zheng
- Suzhou
Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu
Key Laboratory of Advanced Functional Polymer Design and Application,
State and Local Joint Engineering Laboratory for Novel Functional
Polymeric Materials, College of Chemistry, Chemical Engineering and
Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yalan Zhu
- Suzhou
Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu
Key Laboratory of Advanced Functional Polymer Design and Application,
State and Local Joint Engineering Laboratory for Novel Functional
Polymeric Materials, College of Chemistry, Chemical Engineering and
Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiao-Fang Chen
- Suzhou
Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu
Key Laboratory of Advanced Functional Polymer Design and Application,
State and Local Joint Engineering Laboratory for Novel Functional
Polymeric Materials, College of Chemistry, Chemical Engineering and
Materials Science, Soochow University, Suzhou 215123, P. R. China
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Christopher Y. Li
- Department
of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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10
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Scherz LF, Abdel-Rahman EA, Ali SS, Schlüter AD, Abdel-Rahman MA. Design, synthesis and cytotoxic activity of water-soluble quinones with dibromo- p-benzoquinone cores and amino oligo(ethylene glycol) side chains against MCF-7 breast cancer cells. MEDCHEMCOMM 2017; 8:662-672. [PMID: 30108784 DOI: 10.1039/c6md00728g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 02/11/2017] [Indexed: 11/21/2022]
Abstract
A series of novel quinones was synthesized by reacting tetrabromo-p-benzoquinone with amino oligo(ethylene glycol) dendrons of generation numbers g = 0-2. According to the performed shake-flask experiments, their aqueous solubility (S = 18 mg l-1-1.6 g ml-1) and partition coefficients (log Poct/wat = 2.53-0.21) can be tuned in a wide range as a function of g. In vitro cytotoxicity assays of tetrabromo-p-benzoquinone and its derivatives against MCF-7 human breast cancer cells showed a concentration- and generation-specific biological activity with IC50-values as low as 0.8 μM. Further investigations revealed a considerable selectivity against cancer cells, as indicated by a weak cytotoxicity against human skin fibroblast cells (>80% survival) within the studied range of concentrations. The results demonstrate that these novel amino oligo(ethylene glycol) dendrons depict versatile tools to ameliorate physical and pharmacological characteristics of extremely hydrophobic molecules and make them susceptible to biological applications.
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Affiliation(s)
- Leon F Scherz
- Institute of Polymers , Department of Materials , ETH Zürich , 8093 Zürich , Switzerland
| | - Engy A Abdel-Rahman
- Pharmacology Department , Faculty of Medicine , Assiut University , 71515 Assiut , Egypt.,Center for Aging and Associated Diseases , Helmy Institute of Medical Science , Zewail City of Science and Technology , 12588 Giza , Egypt
| | - Sameh S Ali
- Center for Aging and Associated Diseases , Helmy Institute of Medical Science , Zewail City of Science and Technology , 12588 Giza , Egypt
| | - A Dieter Schlüter
- Institute of Polymers , Department of Materials , ETH Zürich , 8093 Zürich , Switzerland
| | - Mona A Abdel-Rahman
- Chemistry Department , Polymer Lab. 109 , Faculty of Science , Assiut University , 71516 Assiut , Egypt .
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11
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Kim H, Bang KT, Choi I, Lee JK, Choi TL. Diversity-Oriented Polymerization: One-Shot Synthesis of Library of Graft and Dendronized Polymers by Cu-Catalyzed Multicomponent Polymerization. J Am Chem Soc 2016; 138:8612-22. [DOI: 10.1021/jacs.6b04695] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hyunseok Kim
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Ki-Taek Bang
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Inho Choi
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Jin-Kyung Lee
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
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12
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Dutertre F, Bang KT, Loppinet B, Choi I, Choi TL, Fytas G. Structure and Dynamics of Dendronized Polymer Solutions: Gaussian Coil or Macromolecular Rod? Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00420] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fabien Dutertre
- Institute of Electronic
Structure and Laser, FORTH, P.O. Box 1527, 71110 Heraklion, Greece
| | - Ki-Taek Bang
- Department
of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-747, Republic of Korea
| | - Benoit Loppinet
- Institute of Electronic
Structure and Laser, FORTH, P.O. Box 1527, 71110 Heraklion, Greece
| | - Inho Choi
- Department
of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-747, Republic of Korea
| | - Tae-Lim Choi
- Department
of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-747, Republic of Korea
| | - George Fytas
- Institute of Electronic
Structure and Laser, FORTH, P.O. Box 1527, 71110 Heraklion, Greece
- Max Planck Institute
for Polymer Research, Ackermannweg
10, 55128, Mainz, Germany
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13
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Liu T, Miao X, Geng X, Xing A, Zhang L, Meng Y, Li X. Control-synthesized multilayer hyperbranched–hyperbranched polyethers with a tunable molecular weight and an invariant degree of branching. NEW J CHEM 2016. [DOI: 10.1039/c5nj02895g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multilayer hyperbranched–hyperbranched polyethers with a tunable Mn and an invariant DB were reported for the first time.
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Affiliation(s)
- Tuan Liu
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
- Key Laboratory of Carbon Fiber and Functional Polymers
| | - Xuepei Miao
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
- Key Laboratory of Carbon Fiber and Functional Polymers
| | - Xinxin Geng
- Key Laboratory of Carbon Fiber and Functional Polymers
- Ministry of Education
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
| | - An Xing
- Key Laboratory of Carbon Fiber and Functional Polymers
- Ministry of Education
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
| | - Liangdong Zhang
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yan Meng
- Key Laboratory of Carbon Fiber and Functional Polymers
- Ministry of Education
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
| | - Xiaoyu Li
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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14
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Rogers HE, Chambon P, Auty SER, Hern FY, Owen A, Rannard SP. Synthesis, nanoprecipitation and pH sensitivity of amphiphilic linear-dendritic hybrid polymers and hyperbranched-polydendrons containing tertiary amine functional dendrons. SOFT MATTER 2015; 11:7005-7015. [PMID: 26241924 DOI: 10.1039/c5sm00673b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The combination of linear polymers with dendritic chain-ends has led to numerous studies of linear-dendritic polymer hybrid materials. Interchain branching within the linear segment of these materials has recently extended this concept to the formation of soluble hyperbranched-polydendrons. Here, the introduction of amphiphilicity into hyperbranched-polydendrons has been achieved for the first time through the use of tertiary amine functional dendritic chain-ends and branched hydrophobic polymer segments. The synthesis and aqueous nanoprecipitation of these branched materials is compared with their linear-dendritic polymer analogues, showing that chain-end chemistry/generation, precipitation medium pH and polymer architecture are all capable of influencing the ability to generate nanoparticles, the resulting nanoparticle diameter and dispersity, and subsequent response to changes in pH.
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Affiliation(s)
- Hannah E Rogers
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK.
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15
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The vesicle formation of β-CD and AD self-assembly of dumbbell-shaped amphiphilic triblock copolymer. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3758-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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