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Simonova MA, Ilgach DM, Kaskevich KI, Nepomnyashaya MI, Litvinova LS, Filippov AP, Yakimansky AV. Self-assembly of Polyfluorene Molecular Brushes with Poly(methacrylic acid) Side Chains in Ethanol and Water. POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s181123822270014x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tarabukina EB, Tarasova EV, Filippov AP. Molecular Properties of Comb-Shaped Maleimide Copolymers in Dilute Solutions: Effect of Alkyl Side Chains. POLYMER SCIENCE SERIES A 2022. [DOI: 10.1134/s0965545x22700134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ivanov IV, Kashina AV, Kukarkina NV, Yakimansky AV. Amphiphilic ABA-Type Block–Graft Molecular Brushes Based on Polyimide. POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s1811238222700047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Valueva SV, Vylegzhanina ME, Ivanov IV, Mitusova KA, Yakimansky AV. Synthesis, Morphology, Structure, and Spectral Characteristics of Silver Nanoparticles Stabilized by Amphiphilic Molecular Brushes of Varying Topology. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422020297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Novel Amphiphilic Polyfluorene-Graft-(Polymethacrylic Acid) Brushes: Synthesis, Conformation, and Self-Assembly. Polymers (Basel) 2021; 13:polym13244429. [PMID: 34960980 PMCID: PMC8708525 DOI: 10.3390/polym13244429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 02/06/2023] Open
Abstract
Novel polyfluorene polymer brushes with polymethacrylic acid side chains were obtained by atom transfer radical polymerization (ATRP) and activator generated by electron transfer (AGET) ATRP of tert-butyl methacrylate on polyfluorene multifunctional macroinitiator, followed by protonolysis of the tert-butyl groups of the side chains. Kinetics of polymerization and molecular weights were fully characterized. These polymer brushes luminesce in the blue region of the spectrum with high quantum yields (0.64–0.77). It was shown that the luminescence intensity of polymer brushes is higher than the luminescence intensity of the macroinitiator (0.61). Moreover, due to their amphiphilic nature, they can form unimolecular micelles when an alcohol solution of the polymer brush is injected into water. These properties can potentially be used in drug delivery and bioimaging.
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Thermoresponsive Molecular Brushes with a Rigid-Chain Aromatic Polyester Backbone and Poly-2-alkyl-2-oxazoline Side Chains. Int J Mol Sci 2021; 22:ijms222212265. [PMID: 34830139 PMCID: PMC8622345 DOI: 10.3390/ijms222212265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 02/07/2023] Open
Abstract
A new polycondensation aromatic rigid-chain polyester macroinitiator was synthesized and used to graft linear poly-2-ethyl-2-oxazoline as well as poly-2-isopropyl-2-oxazoline by cationic polymerization. The prepared copolymers and the macroinitiator were characterized by NMR, GPC, AFM, turbidimetry, static, and dynamic light scattering. The molar masses of the polyester main chain and the grafted copolymers with poly-2-ethyl-2-oxazoline and poly-2-isopropyl-2-oxazoline side chains were 26,500, 208,000, and 67,900, respectively. The molar masses of the side chains of poly-2-ethyl-2-oxazoline and poly-2-isopropyl-2-oxazoline and their grafting densities were 7400 and 3400 and 0.53 and 0.27, respectively. In chloroform, the copolymers conformation can be considered as a cylinder wormlike chain, the diameter of which depends on the side chain length. In water at low temperatures, the macromolecules of the poly-2-ethyl-2-oxazoline copolymer assume a wormlike conformation because their backbones are well shielded by side chains, whereas the copolymer with short side chains and low grafting density strongly aggregates, which was visualized by AFM. The phase separation temperatures of the copolymers were lower than those of linear analogs of the side chains and decreased with the concentration for both samples. The LCST were estimated to be around 45 °C for the poly-2-ethyl-2-oxazoline graft copolymer, and below 20 °C for the poly-2-isopropyl-2-oxazoline graft copolymer.
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Simonova M, Kamorin D, Kazantsev O, Nepomnyashaya M, Filippov A. Conformation, Self-Organization and Thermoresponsibility of Polymethacrylate Molecular Brushes with Oligo(ethylene glycol)-block-oligo(propylene glycol) Side Chains. Polymers (Basel) 2021; 13:2715. [PMID: 34451252 PMCID: PMC8400288 DOI: 10.3390/polym13162715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 11/16/2022] Open
Abstract
Polymethacrylic molecular brushes with oligo(ethylene glycol)-block-oligo(propylene glycol) side chains were investigated by static and dynamic light scattering and viscometry. The solvents used were acetonitrile, tetrahydrofuran, chloroform, and water. The grafted copolymers were molecularly dispersed and dissolved in tetrahydrofuran and acetonitrile. In these solvents, the molar masses of copolymers were determined. In thermodynamically good solvents, namely tetrahydrofuran and acetonitrile, investigated copolymers have a high intramolecular density and the shape of their molecules resembles a star-shaped macromolecule. In chloroform and water, the micelle-like aggregates were formed. Critical micelle concentrations decreased with the lengthening of the hydrophobic block. Molecular brushes demonstrated thermosensitive behavior in aqueous solutions. The phase separation temperatures reduced with an increase in the content of the oligo(propylene glycol) block.
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Affiliation(s)
- Maria Simonova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Prospekt 31, 199004 Saint Petersburg, Russia;
| | - Denis Kamorin
- Laboratory of Acrylic Monomers and Polymers, Department of Chemical Technology, Dzerzhinsk Polytechnic Institute, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minin Street, 603950 Nizhny Novgorod, Russia; (D.K.); (O.K.)
- Chromatography Laboratory, Department of Production Control and Chromatography Methods, Lobachevsky State University of Nizhni Novgorod, Dzerzhinsk Branch, 23 Prospekt Gagarina, 603950 Nizhny Novgorod, Russia
| | - Oleg Kazantsev
- Laboratory of Acrylic Monomers and Polymers, Department of Chemical Technology, Dzerzhinsk Polytechnic Institute, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minin Street, 603950 Nizhny Novgorod, Russia; (D.K.); (O.K.)
| | - Maria Nepomnyashaya
- Higher School of Technology and Energy, Ivana Chernykh 4, 198095 Saint Petersburg, Russia;
| | - Alexander Filippov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Prospekt 31, 199004 Saint Petersburg, Russia;
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Simonova M, Ivanov I, Meleshko T, Kopyshev A, Santer S, Yakimansky A, Filippov A. Self-Assembly of Molecular Brushes with Polyimide Backbone and Amphiphilic Block Copolymer Side Chains in Selective Solvents. Polymers (Basel) 2020; 12:polym12122922. [PMID: 33291503 PMCID: PMC7762168 DOI: 10.3390/polym12122922] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 12/04/2022] Open
Abstract
Three-component molecular brushes with a polyimide backbone and amphiphilic block copolymer side chains with different contents of the “inner” hydrophilic (poly(methacrylic acid)) and “outer” hydrophobic (poly(methyl methacrylate)) blocks were synthesized and characterized by molecular hydrodynamics and optics methods in solutions of chloroform, dimethylformamide, tetrahydrofuran and ethanol. The peculiarity of the studied polymers is the amphiphilic structure of the grafted chains. The molar masses of the molecular brushes were determined by static and dynamic light scattering in chloroform in which polymers form molecularly disperse solutions. Spontaneous self-assembly of macromolecules was detected in dimethylformamide, tetrahydrofuran and ethanol. The aggregates size depended on the thermodynamic quality of the solvent as well as on the macromolecular architectural parameters. In dimethylformamide and tetrahydrofuran, the distribution of hydrodynamic radii of aggregates was bimodal, while in ethanol, it was unimodal. Moreover, in ethanol, an increase in the poly(methyl methacrylate) content caused a decrease in the hydrodynamic radius of aggregates. A significant difference in the nature of the blocks included in the brushes determines the selectivity of the used solvents, since their thermodynamic quality with respect to the blocks is different. The macromolecules of the studied graft copolymers tend to self-organization in selective solvents with formation of a core–shell structure with an insoluble solvophobic core surrounded by the solvophilic shell of side chains.
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Affiliation(s)
- Maria Simonova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Pr. 31, 199004 Saint Petersburg, Russia; (I.I.); (T.M.); (A.Y.); (A.F.)
- Correspondence: ; Tel.: +7-812-328-4102
| | - Ivan Ivanov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Pr. 31, 199004 Saint Petersburg, Russia; (I.I.); (T.M.); (A.Y.); (A.F.)
| | - Tamara Meleshko
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Pr. 31, 199004 Saint Petersburg, Russia; (I.I.); (T.M.); (A.Y.); (A.F.)
| | - Alexey Kopyshev
- Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany; (A.K.); (S.S.)
| | - Svetlana Santer
- Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany; (A.K.); (S.S.)
| | - Alexander Yakimansky
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Pr. 31, 199004 Saint Petersburg, Russia; (I.I.); (T.M.); (A.Y.); (A.F.)
| | - Alexander Filippov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy Pr. 31, 199004 Saint Petersburg, Russia; (I.I.); (T.M.); (A.Y.); (A.F.)
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Amphiphilic molecular brushes with regular polydimethylsiloxane backbone and poly-2-isopropyl-2-oxazoline side chains. 1. Synthesis, characterization and conformation in solution. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Kashina A, Meleshko T, Bezrukova M, Yakimansky A. SEC analysis of copolymers of different topologies with branched and linear copolyimides with PMMA blocks as a model system. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Blokhin AN, Razina AB, Kurlykin MP, Kashina AV, Tenkovtsev AV. New thermoresponsive polyester-graft-polyoxazolines based on sulfonyl chloride macroinitiators. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.11.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zabegaeva ON, Sapozhnikov DA, Vygodskii YS. Molecular Composites Based on Polyimides. POLYMER SCIENCE SERIES C 2020. [DOI: 10.1134/s1811238220020174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Valueva SV, Vylegzhanina ME, Meleshko TK, Ivanov IV, Gasilova ER, Gel’fond ML, Yakimansky AV, Sukhanova TE. Optical and Morphological Characteristics of Polymer Molecular Brushes with Varied Grafting Density and Binary Bioactive Radachlorine-Containing Nanosystems Based on Them. RUSS J APPL CHEM+ 2020. [DOI: 10.1134/s1070427220010103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tian NS, Meleshko TK, Polotskaya GA, Gofman IV, Kashina AV, Kukarkina NV, Vlasova EN, Zoolshoev ZF, Yakimansky AV. Influence of Macromolecular Brushes with Polyimide Backbones and Poly(methyl methacrylate) Side Chains on Structure, Physical, and Transport Properties of Polyphthalamide. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nadezhda S. Tian
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Tamara K. Meleshko
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Galina A. Polotskaya
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
- Saint Petersburg State University Institute of Chemistry Saint Petersburg 198504 Russia
| | - Iosif V. Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Anna V. Kashina
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Nina V. Kukarkina
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Elena N. Vlasova
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Zoolsho F. Zoolshoev
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
| | - Alexander V. Yakimansky
- Institute of Macromolecular Compounds, Russian Academy of Sciences Saint Petersburg 199004 Russia
- Saint Petersburg State University Institute of Chemistry Saint Petersburg 198504 Russia
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Ivanov IV, Meleshko TK, Kashina AV, Yakimansky AV. Amphiphilic multicomponent molecular brushes. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4870] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Multicomponent molecular brushes containing amphiphilic polymer moieties are promising objects of research of macromolecular chemistry. The development of stimulus-responsive systems sensitive to changes in environmental parameters, based on the molecular brushes, opens up new possibilities for their applications in medicine, biochemistry and microelectronics. The review presents the current understanding of the structures of main types of amphiphilic multicomponent brushes, depending on the chemical nature and type of coupling of the backbone and side chains. The approaches to the controlled synthesis of multicomponent molecular brushes of different architecture are analyzed. Self-assembly processes of multicomponent molecular brushes in selective solvents are considered.
The bibliography includes 259 references.
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Nekrasova TN, Pautov VD, Anan’eva TD, Meleshko TK, Ivanov IV, Yakimanskii AV. Complexes of Amphiphilic Molecular Brushes with a Polyimide Backbone with Poly-N-Vinylamides in Selective Solvents. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19060075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Razina AB, Ten’kovtsev AV. Synthesis of Polyester-graft-Polyoxazolines on the Basis of Macroinitiators of Sulfonyl Chloride Type. POLYMER SCIENCE SERIES B 2019. [DOI: 10.1134/s1560090419040110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Tyan NS, Polotskaya GA, Meleshko TK, Yakimansky AV, Pientka Z. Influence of the Molecular Polyimide Brush on the Gas Separation Properties of Polyphenylene Oxide. RUSS J APPL CHEM+ 2019. [DOI: 10.1134/s1070427219030066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sun X, Wu C, Hu J, Huang X, Lu G, Feng C. Antifouling Surfaces Based on Fluorine-Containing Asymmetric Polymer Brushes: Effect of Chain Length of Fluorinated Side Chain. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1235-1241. [PMID: 30558426 DOI: 10.1021/acs.langmuir.8b03632] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The influence of chain length of a fluorinated side chain of an asymmetric polymer brush with poly(ethylene glycol) (PEG) side chains on the antifouling property was systematically investigated so as to obtain more knowledge for deepening our understanding of the structure-(antifouling)-property relationship of asymmetric polymer brush. A series of asymmetric polymer brushes, consisting of hydrophobic poly(pentafluoropropyl methacrylate) (PPTFMA) side chains with the number of repeat units of pentafluoropropyl methacrylate (PTFMA) ranging from 8 to 42 and hydrophilic PEG side chains, was first synthesized by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP). Subsequently, thin films were prepared by spin-casting the solution of these brushes onto indium tin oxide (ITO) and SiO2 substrates. Water contact angle analysis showed that the hydrophobicity of the film surface increased with the length of PPTFMA side chain. The atomic force microscopy (AFM) measurement demonstrated that these films had a roughness of <3 and <10 nm onto ITO glass and SiO2 substrates, respectively. The antifouling behaviors of these films in bovine serum albumin (BSA) solution were evaluated by quartz crystal microbalance (QCM), which showed that the asymmetric brush surfaces had considerable antifouling performance with less protein adsorption in comparison with the bare surface. In addition, the films made from polymer brushes with shorter PPTFMA side chains exhibited better antifouling and fouling-release behaviors.
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Affiliation(s)
- Xiaowen Sun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Chaoqun Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Jianhua Hu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science , Fudan University , 220 Handan Road , Shanghai 200433 , People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , People's Republic of China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , People's Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , People's Republic of China
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