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Dupont J, Leal BC, Lozano P, Monteiro AL, Migowski P, Scholten JD. Ionic Liquids in Metal, Photo-, Electro-, and (Bio) Catalysis. Chem Rev 2024; 124:5227-5420. [PMID: 38661578 DOI: 10.1021/acs.chemrev.3c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Ionic liquids (ILs) have unique physicochemical properties that make them advantageous for catalysis, such as low vapor pressure, non-flammability, high thermal and chemical stabilities, and the ability to enhance the activity and stability of (bio)catalysts. ILs can improve the efficiency, selectivity, and sustainability of bio(transformations) by acting as activators of enzymes, selectively dissolving substrates and products, and reducing toxicity. They can also be recycled and reused multiple times without losing their effectiveness. ILs based on imidazolium cation are preferred for structural organization aspects, with a semiorganized layer surrounding the catalyst. ILs act as a container, providing a confined space that allows modulation of electronic and geometric effects, miscibility of reactants and products, and residence time of species. ILs can stabilize ionic and radical species and control the catalytic activity of dynamic processes. Supported IL phase (SILP) derivatives and polymeric ILs (PILs) are good options for molecular engineering of greener catalytic processes. The major factors governing metal, photo-, electro-, and biocatalysts in ILs are discussed in detail based on the vast literature available over the past two and a half decades. Catalytic reactions, ranging from hydrogenation and cross-coupling to oxidations, promoted by homogeneous and heterogeneous catalysts in both single and multiphase conditions, are extensively reviewed and discussed considering the knowledge accumulated until now.
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Affiliation(s)
- Jairton Dupont
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, P.O. Box 4021, E-30100 Murcia, Spain
| | - Bárbara C Leal
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Pedro Lozano
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, P.O. Box 4021, E-30100 Murcia, Spain
| | - Adriano L Monteiro
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Pedro Migowski
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Jackson D Scholten
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
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Wang J, Pan Z, Liu J, Shao Q, Liang Y, Huang S, Jin W, Li Z, Zhang Z, Ye C, Chen Y, Wei P, Wang Y, He Y, Xia Y. Thermoresponsive homo-polymeric ionic liquid as molecular transporters via tailoring interchain π-π interactions and its unique Temp-resistance behavior during ions pairing. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Cho Y, Kang H. Influence of the anionic structure and central atom of a cation on the properties of LCST-type draw solutes for forward osmosis. RSC Adv 2022; 12:29405-29413. [PMID: 36320770 PMCID: PMC9557740 DOI: 10.1039/d2ra05131a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/08/2022] [Indexed: 11/07/2022] Open
Abstract
Thermo-responsive ionic compounds were synthesized to examine if they have a powerful ability to draw solutes for forward osmosis (FO). The investigated compounds were tetrabutylammonium benzenesulfonate, tetrabutylphosphonium benzenesulfonate, tetrabutylammonium 2-naphthalenesulfonate, and tetrabutylphosphonium 2-naphthalenesulfonate (abbreviated as [N4444][BS], [P4444][BS], [N4444][NS], and [P4444][NS]). The lower critical solution temperature (LCST) characteristics of the materials that formed the monocyclic aromatic compound [BS] were not confirmed; however, the LCSTs of others that formed the bicyclic aromatic compound [NS] were confirmed to be approximately 37 °C ([N4444][NS]) and 19 °C ([P4444][NS]) at 20 wt% in aqueous solutions; this is valued in reducing the energy required for recovery of the draw solute. In addition, it suggests that ammonium-based ionic compounds have a higher recovery temperature than phosphonium-based ionic compounds. When an active layer was oriented to a draw solution (AL-DS mode) and using 20 wt% aqueous [N4444][NS] draw solution at room temperature, water and reverse solute fluxes were about 3.07 LMH and 0.58 gMH, respectively. Thus, this is the first study to investigate structural transformations of the anion and central atom of the cation and to examine prospective draw solutes of the FO system in this series. Thermo-responsive ionic compounds having lower critical solution temperature were utilized as a draw solute for eco-sustainable forward osmosis.![]()
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Affiliation(s)
- Yeonsu Cho
- BK-21 Four Graduate Program, Department of Chemical Engineering, Dong-A University37 Nakdong-Daero 550 Beon-Gil, Saha-GuBusan 49315Republic of Korea
| | - Hyo Kang
- BK-21 Four Graduate Program, Department of Chemical Engineering, Dong-A University37 Nakdong-Daero 550 Beon-Gil, Saha-GuBusan 49315Republic of Korea
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Liu C, Li F, Li G, Li P, Hu A, Cui Z, Cong Z, Niu J. Zwitterionic Hydrogel Electrolyte with Tunable Mechanical and Electrochemical Properties for a Wearable Motion and Thermal Sensor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:9608-9617. [PMID: 35143174 DOI: 10.1021/acsami.1c23810] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A high-performance zwitterionic hydrogel electrolyte was successfully fabricated, in which the polymer chains were cross-linked by multiple reversible non-covalent bonds. The mechanical and electrochemical properties of the synthesized zwitterionic hydrogel electrolyte can be facilely modulated by immersing the as-prepared zwitterionic hydrogel in saline solutions with different concentrations. The processed zwitterionic hydrogel electrolyte exhibits tunable mechanical and electrochemical properties (favorable elasticity of 3.2-202 kPa, high fracture energy of 0.34-1.15 MJ m-3, high stretchability of 1000-2880%, high self-healing efficiency of 30-70%, and coordinated ionic conductivity of 0.16-1.65 S m-1) to satisfy the needs of different application scenarios. A wearable sensor based on the zwitterionic hydrogel electrolyte is demonstrated. The wearable sensor can be attached to a part of the human body, and various human motions can be successfully monitored. Besides being functionalized as a motion monitor, the wearable sensor can also be used as a thermometer to monitor the body temperature instantaneously, showing an encouraging and strong practicability in wearable electronic device.
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Affiliation(s)
- Chen Liu
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Fang Li
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Guanjun Li
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Peifang Li
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Ankang Hu
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Zeyu Cui
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Zhenhua Cong
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Jian Niu
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
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Ando M, Shirota H. Low-Frequency Spectra of 1-Methyl-3-octylimidazolium Tetrafluoroborate Mixtures with Poly(ethylene glycol) by Femtosecond Raman-Induced Kerr Effect Spectroscopy. J Phys Chem B 2021; 125:12006-12019. [PMID: 34694116 DOI: 10.1021/acs.jpcb.1c07079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This is the first report on low-frequency spectra of ionic liquid (IL)/polymer mixtures using femtosecond Raman-induced Kerr effect spectroscopy. We studied mixtures of 1-methyl-3-octylimidazolium tetrafluoroborate ([MOIm][BF4]) and poly(ethylene glycol) (PEG) with Mn = 400 (PEG400) at various concentrations. To elucidate the unique features of the IL/polymer mixture system, mixtures of PEG400 with a molecular liquid, 1-octhylimidazole (OIm), which is a neutral analog of the cation, were also studied. In addition, mixtures of [MOIm][BF4] with ethylene glycol (EG) and poly(ethylene glycol) with Mn = 4000 (PEG4000) were also investigated. The first moments of broad low-frequency spectra, mainly due to intermolecular vibrations for the [MOIm][BF4]/PEG400 and OIm/PEG400, increased slightly with increasing concentration of PEG400, indicating that microscopic intermolecular interactions, in general, are slightly enhanced. We also compared the [MOIm][BF4] mixtures with EG, PEG400, and PEG4000 at concentrations of 5 and 10 wt % PEG or EG. The low-frequency spectra of samples with the same concentrations were quite similar, but a comparison of the normalized spectra showed that the spectral intensity in the low-frequency region below ∼50 cm-1 of the [MOIm][BF4] mixtures with PEG400 and PEG4000 is somewhat lower than that of the [MOIm][BF4] mixtures with EG. Although the effect of the polymer is small compared to other polymer solution systems, this feature is attributed to a suppression of translational motion in the mixtures of [MOIm][BF4] with PEG compared to the mixtures of [MOIm][BF4] with EG due to the greater mass of PEG than EG. Density, surface tension, viscosity, and electrical conductivity were also estimated. From Walden plots, it was found that the [MOIm][BF4]/PEG4000 system showed more ideal electrical conductive behavior than the [MOIm][BF4]/PEG400 and [MOIm][BF4]/EG systems.
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Affiliation(s)
- Masatoshi Ando
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Hideaki Shirota
- Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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Jasiurkowska-Delaporte M, Juszyńska-Gałązka E, Sas W, Zieliński PM, Baranowska-Korczyc A. Soft versus hard confinement effects on the phase transitions, and intra- and inter- molecular dynamics of 6BT liquid crystal constrained in electrospun polymer fibers and in nanopores. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115817] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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7
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Xiong D, Zhang Q, Ma W, Wang Y, Wan W, Shi Y, Wang J. Temperature-switchable deep eutectic solvents for selective separation of aromatic amino acids in water. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118479] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Kumar K, Mogha NK, Yadav R, Venkatesu P. Insulin-induced conformational transition of fluorescent copolymers: a perspective of self-assembly between protein and micellar solutions of smart copolymers. Phys Chem Chem Phys 2020; 22:9573-9586. [PMID: 32322851 DOI: 10.1039/d0cp00645a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Synthesizing and understanding phase transition behavior of novel block copolymers is very crucial for fabricating next generation of smart materials with foreseeable applications. In this regard, we synthesized three random (r) copolymers of poly(N-vinyl-caprolactam) (PVCL) and poly(2-dimethyl amino ethyl methacrylate) (PDMAEMA) with varying percentages of each block and characterized them using nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) patterns, time-resolved fluorescence spectroscopy, and atomic force microscopy (AFM). Synthesized copolymers i.e. PVCL30-PDMAEMA70, PVCL50-PDMAEMA50 and PVCL70-PDMAEMA30 have fluorescence properties, which were confirmed by time-resolved fluorescence spectra and emission spectra, and emission bands were observed at ∼310, ∼435 and ∼424 nm, respectively. The fluorescence lifetime for PVCL50-PDMAEMA50 is larger than those of the other two copolymers suggesting a slow decay of the excited state. The copolymers have spherical geometry as micelles, which were confirmed by TEM. We observed patterned arrangement of micelles and the arranged micelles appear to be pentagon in shape, creating space in between the arranged micelles; however, for PVCL50-PDMAEMA50, the arranged micelles do not form any particular shape. The thermal phase transition of PVCL-r-PDMAEMA in aqueous solution was studied by differential scanning calorimetry and thermal fluorescence spectroscopy. In order to design a biomimetic polymer for bio-specific applications and to understand novel concepts towards polymer-protein interactions, we studied the effect of insulin on lower critical solution temperature (LCST) of PVCL-r-PDMAEMA using multiple sophisticated techniques. The LCST is finely tuned by incorporation of two blocks with various block compositions and the value falls within the range of human body temperature, making PVCL50-PDMAEMA50 a highly compatible material for bio-medical and bio-material applications. Insulin forms a self-assembly with the monomers of PVCL-r-PDMAEMA, which leads to enhancing the micellar aggregates and the eventual decrease in the LCST of the diblock copolymer aqueous solution. The present study provides new insights into insulin-copolymer interactions and can be used for self-assembling nanocarriers and designing protein resistance surfaces.
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Affiliation(s)
- Krishan Kumar
- Department of Chemistry, University of Delhi, Delhi-110 007, India.
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Karjalainen E, Suvarli N, Tenhu H. Thermoresponsive behavior of poly[trialkyl-(4-vinylbenzyl)ammonium] based polyelectrolytes in aqueous salt solutions. Polym Chem 2020. [DOI: 10.1039/d0py00917b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A systematic method to induce thermoresponsive behavior for polycations with salts from the reversed Hofmeister series is introduced.
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Affiliation(s)
- Erno Karjalainen
- Department of Chemistry
- University of Helsinki
- 00014 Helsingin yliopisto
- Finland
| | - Narmin Suvarli
- Department of Chemistry
- University of Helsinki
- 00014 Helsingin yliopisto
- Finland
| | - Heikki Tenhu
- Department of Chemistry
- University of Helsinki
- 00014 Helsingin yliopisto
- Finland
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Narang P, Yadav N, Venkatesu P. Scrutinizing the effect of various nitrogen containing additives on the micellization behavior of a triblock copolymer. J Colloid Interface Sci 2019; 553:655-665. [DOI: 10.1016/j.jcis.2019.06.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/20/2019] [Accepted: 06/21/2019] [Indexed: 11/29/2022]
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11
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Kang H, Suich DE, Davies JF, Wilson AD, Urban JJ, Kostecki R. Molecular insight into the lower critical solution temperature transition of aqueous alkyl phosphonium benzene sulfonates. Commun Chem 2019. [DOI: 10.1038/s42004-019-0151-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Abstract
With growing interest in the fields of wearable devices, it is crucial yet rather challenging to develop skinlike soft conductive materials with customizable functionalities and human tissue-compatible mechanical properties. Previously reported electronic skins struggle to meet the demands for transparence, mechanical adaptability, and stable conductivity during deformation. The recent rise of ionic skins with inorganic salts or ionic liquids doping provides the intrinsic stretchability, however, dilemmas remain for their limited functionalities such as a monotonous appearance and a narrow scope of mechanical and sensory properties. Herein, we design a type of zwitterionic hydrogels from the perspective of molecular interactions, which successfully combines ultrastretchability (>10000% strain), high strength (∼300 kPa), self-healability (at room temperature within 12 h), 3D printability, distinct stimuli-responsibility, biocompatibility, and antibacterial activity. The wide spectrum of such excellent properties has been rarely reported before and along with the ability to fabricate bioinspired intelligent skins recreating multiple sensations and mechanical properties of human skin, covering a broad range of sensitivity, and displaying tunable visual effect. We believe this work will inspire the programming of stimuli-responsive skinlike materials and contribute to the smart devices for information transformation between natural and artificial interfaces.
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Affiliation(s)
- Zhouyue Lei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials , Donghua University , Shanghai 201620 , China
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science , Fudan University , Shanghai 200433 , China
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials , Donghua University , Shanghai 201620 , China
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science , Fudan University , Shanghai 200433 , China
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Shi Y, Zhang Y, Jia L, Zhang Q, Xu X. Stretchable and Self-Healing Integrated All-Gel-State Supercapacitors Enabled by a Notch-Insensitive Supramolecular Hydrogel Electrolyte. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36028-36036. [PMID: 30265506 DOI: 10.1021/acsami.8b13947] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Next-generation wearable electronics are expected to endure significant deformations and mechanical damage. Therefore, self-healing stretchable electrolytes with high ionic conductivity and robust mechanical strength, which have high tolerance of deformations and spontaneously recover electrochemical properties after external damage, are necessary conditions for the realization of flexible supercapacitors. Here, a new type of zwitterionic supramolecular hydrogel cross-linked through rationally designed ionic associations and hydrogen bonds is reported (PAD/H2SO4). The resultant supramolecular network realizes a high ionic conductivity of 57 mS cm-1 and unprecedented mechanical properties such as a high toughness of 35 000 J m-2, a notch-insensitive of up to 2200% strain, and efficient instantaneous self-healing within 5 min. Acting as an electrolyte, a novel flexible supercapacitor design strategy is proposed by integrating capacitive materials directly onto the PAD/H2SO4 hydrogel to achieve exceptional electrochemical performance, which can be repeatable for at least 50 cutting/healing cycles. The facile and versatile strategy for the construction of the integrated all-gel-state supercapacitors with self-healing stretchable electrolytes will provide new directions for future long-life flexible devices.
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Affiliation(s)
- Yunhui Shi
- School of Materials Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Yan Zhang
- School of Materials Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Limin Jia
- School of Materials Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Qian Zhang
- School of Materials Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
| | - Xinhua Xu
- School of Materials Science and Engineering , Tianjin University , Tianjin 300072 , P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials , Tianjin 300072 , P. R. China
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Zhang Y, Tang H, Wu P. Insights into the thermal phase transition behavior of a gemini dicationic polyelectrolyte in aqueous solution. SOFT MATTER 2018; 14:4380-4387. [PMID: 29767208 DOI: 10.1039/c8sm00598b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The thermal-induced phase transition behavior of a LCST-type poly(ionic liquid) (PIL) aqueous solution with gemini-cationic structure, poly[(1,8-octanediyl-bis(tri-n-butylphosphonium)4-styrene sulfonate)] (P[SS-P2]), was investigated in this paper. Based on the calorimetric measurements, a unique dependence of transition points on concentration was found in P[SS-P2] aqueous solution compared to its mono-cationic PIL and [SS-P2] aqueous solution. Optical microscopy showed that globular microscopic droplets were formed during the phase transition, suggesting that gemini dications and the possible dynamic ionic bonds may facilitate the liquid-liquid phase separation (LLPS) in P[SS-P2] aqueous solution. Temperature-variable 1H NMR and FT-IR investigations manifested that the dehydration of anionic chains instead of the dehydration of dications served as the driving force of the phase separation in the P[SS-P2] aqueous solution, implying that the polymerized anions tended to aggregate together first and lay in the core with dications distributed around the globules at the end of the transition process. Notably, considering that the SO3 groups in the gemini-cationic system tended to be distributed around the surface of collapsed anionic main chains rather than be wrapped into the aggregates, it is supposed that dynamic ionic bonding between dication and anionic backbones was distributed in the periphery of the globules and acted as the "cross-linkers", which enhanced the stability of regular droplets after the phase transition in P[SS-P2] aqueous solution.
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Affiliation(s)
- Yingna Zhang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China.
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A supramolecular biomimetic skin combining a wide spectrum of mechanical properties and multiple sensory capabilities. Nat Commun 2018; 9:1134. [PMID: 29555905 PMCID: PMC5859265 DOI: 10.1038/s41467-018-03456-w] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 02/14/2018] [Indexed: 11/09/2022] Open
Abstract
Biomimetic skin-like materials, capable of adapting shapes to variable environments and sensing external stimuli, are of great significance in a wide range of applications, including artificial intelligence, soft robotics, and smart wearable devices. However, such highly sophisticated intelligence has been mainly found in natural creatures while rarely realized in artificial materials. Herein, we fabricate a type of biomimetic iontronics to imitate natural skins using supramolecular polyelectrolyte hydrogels. The dynamic viscoelastic networks provide the biomimetic skin with a wide spectrum of mechanical properties, including flexible reconfiguration ability, robust elasticity, extremely large stretchability, autonomous self-healability, and recyclability. Meanwhile, polyelectrolytes' ionic conductivity allows multiple sensory capabilities toward temperature, strain, and stress. This work provides not only insights into dynamic interactions and sensing mechanism of supramolecular iontronics, but may also promote the development of biomimetic skins with sophisticated intelligence similar to natural skins.
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Ge C, Ling Y, Yan S, Luan S, Zhang H, Tang H. Preparation and mechanical properties of strong and tough poly (vinyl alcohol)-polypeptide double-network hydrogels. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Okafuji A, Kohno Y, Nakamura N, Ohno H. Design of thermoresponsive poly(ionic liquid) gels containing proline units to catalyse aldol reaction in water. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.11.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ma L, Wu P. The role of unique spatial structure in the volume phase transition behavior of poly(N-isopropylacrylamide)-based interpenetrating polymer network microgels including a thermosensitive poly(ionic liquid). Phys Chem Chem Phys 2018. [DOI: 10.1039/c8cp00340h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
By comparing with the linear homopolymer mixture, the influence of spatial structure on the phase behavior of thermosensitive interpenetrating polymer network (IPN) microgels was clarified.
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Affiliation(s)
- Lan Ma
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Peiyi Wu
- Key Laboratory of Science and Technology of Eco-Textiles
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
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Dai Y, Wu P. Toward the two-step microdynamic phase transition mechanism of an oligo(ethylene glycol)methacrylate-based copolymer with a LCST-type poly(ionic liquid) block. Phys Chem Chem Phys 2017; 19:18556-18564. [PMID: 28686277 DOI: 10.1039/c7cp02942j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new LCST-type thermoresponsive polyelectrolyte P[P4,4,4,4][SS], poly(tetrabutyl phosphonium styrene sulfonate), was introduced to PMEO2MA (poly(2-(2-methoxyethoxy)ethyl methacrylate)) via RAFT polymerization, in order to explore the transition behavior of the block copolymer PMEO2MA-b-P[P4,4,4,4][SS] with two distinct LCST-type segments. A relatively sharp LCST-type phase transition with only one transition point is observed in the turbidity curves, while the whole phase transition is completely different from the micro perspective. The phase transition temperature range is relatively broad, according to the unsynchronized changes of different protons of the two blocks in the temperature-variable 1H NMR analysis. From PCMW analysis, it is found that there exists an obvious two-step phase transition behavior, especially in the region of the C-H groups. Accordingly, we divided the whole transition process into two subregions: 20-40 °C and 40-55 °C in 2Dcos analysis. At the first stage of 20-40 °C, the CH3 groups mainly belonging to the backbones of PMEO2MA blocks have the earliest response to the heating and drive the first step of the dehydration process of PMEO2MA-b-P[P4,4,4,4][SS], resulting in the formation of an intermediate micelle state composed of the collapsed PMEO2MA core and hydrophilic P[P4,4,4,4][SS] corona. In particular, the conformational changes and the more compact structures due to the interaction between the C[double bond, length as m-dash]O groups and P[P4,4,4,4][SS] segments (ν(C[double bond, length as m-dash]OD2O-PILs)) were observed using IR analysis. With the continual increase of the temperature, when the second temperature range of 40-55 °C is reached, the P[P4,4,4,4][SS] segments start to collapse and expel the water molecules, driven by the anions of the poly(ionic liquid)s, with the phosphonium cations being distributed over the relatively hydrophilic outside.
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Affiliation(s)
- Yalan Dai
- The State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China.
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Sun ST, Wu PY. Spectral insights into microdynamics of thermoresponsive polymers from the perspective of two-dimensional correlation spectroscopy. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1938-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Qiao Y, Ma W, Theyssen N, Chen C, Hou Z. Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications. Chem Rev 2017; 117:6881-6928. [DOI: 10.1021/acs.chemrev.6b00652] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yunxiang Qiao
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Wenbao Ma
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Nils Theyssen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Chen Chen
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
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Ma L, Wang G, Sun S, Wu P. The influence of a thermoresponsive polymer on the microdynamic phase transition mechanisms of distinctly structured thermoresponsive ionic liquids. Phys Chem Chem Phys 2017; 19:22263-22271. [DOI: 10.1039/c7cp03602g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The study of a ternary solution involving a thermoresponsive polymer, a thermoresponsive ionic liquid (IL), and a solvent will not only help with interpreting their distinct phase transition behavior, but also promote the development of novel thermoresponsive systems.
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Affiliation(s)
- Lan Ma
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science, and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
| | - Ge Wang
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science, and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
| | - Shengtong Sun
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science, and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science, and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
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Liu S, Ge C, Ling Y, Tang H. Preparation and UCST-Type Phase Behaviours of Poly(γ-4-methylbenzyl-L-glutamate) Pyridinium Tetrafluoroborate Conjugates in Methanol or Water. Aust J Chem 2017. [DOI: 10.1071/ch16344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polymers with ionic liquid (IL) moieties can undergo thermally induced solution phase transitions by adjusting the balance of hydrophilicity and hydrophobicity between the cations and anions of the IL moieties, thus making them attractive candidates towards various applications such as separation, sensing, and biomedicine. In the present study, a series of poly(γ-4-methylbenzyl-l-glutamate) pyridinium tetrafluoroborate conjugates (P1–P4) containing various pyridinium moieties (i.e. pyridinium, 2-methylpyridinium, 3-methylpyridinium, and 4-methylpyridinium) were prepared by nucleophilic substitution between poly(γ-4-chloromethylbenzyl-l-glutamate) and pyridine or methylpyridines with different substituent positions, followed by ion-exchange reaction in the presence of NaBF4. 1H NMR spectroscopy and Fourier transform infrared spectroscopy analyses confirmed the molecular structures of P1–P4. 1H NMR analysis additionally revealed that P1–P4 showed high grafting efficiency in the range of 93–97 %. P1, P3, and P4 exhibited reversible UCST-type phase behaviours in both methanol and water, whereas P2 showed a reversible UCST-type phase behaviour in water only. Variable-temperature UV-visible spectroscopy was used to characterize the solution phase behaviours and UCST-type phase transition temperature (Tpt) values of P1–P4, which were in the range of 24.9–37.2°C in methanol (3 mg mL–1) and 40.9–55.7°C in water (10 mg mL–1). Tpt decreased significantly with decreasing polymer concentrations.
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Zhang Y, Tang H, Wu P. Multiple interaction regulated phase transition behavior of thermo-responsive copolymers containing cationic poly(ionic liquid)s. Phys Chem Chem Phys 2017; 19:30804-30813. [DOI: 10.1039/c7cp05846b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Schematic illustration of the phase transition mechanism of the P(OEGMA-co-BVIm[SCN]) copolymer.
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Affiliation(s)
- Yingna Zhang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
- China
| | - Hui Tang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
- China
| | - Peiyi Wu
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science and Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
- China
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Wang G, Wu P. Unusual Phase Transition Behavior of Poly(N-isopropylacrylamide)-co-Poly(tetrabutylphosphonium styrenesulfonate) in Water: Mild and Linear Changes in the Poly(N-isopropylacrylamide) Part. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3728-3736. [PMID: 27022971 DOI: 10.1021/acs.langmuir.6b00392] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, one LCST-type thermoresponsive poly(ionic liquid) (PIL), poly(tetrabutylphosphonium styrenesulfonate) (P[P4,4,4,4][SS]), was introduced to poly(N-isopropylacrylamide) (PNIPAM) by two different ways, mixing and copolymerization. Interestingly, they show distinct thermoresponsive phase transition behaviors, evidenced by temperature-variable (1)H nuclear magnetic resonance and Fourier transform infrared in combination with the perturbation correlation moving window (PCMW) technique. The PNIPAM/P[P4,4,4,4][SS] mixture exhibits a sharp and drastic phase transition, similar to that of pure PNIPAM. In the statistical copolymer, PNIPAM-co-P[P4,4,4,4][SS], the thermosensitivity of P[P4,4,4,4][SS] is largely suppressed, resulting in a linear, mild, and incomplete phase transition, which has never been reported before. This abnormal phenomenon is shown to arise from the outstanding hydration ability of P[P4,4,4,4][SS]. Our findings should be conducive to improving our understanding of the interaction between LCST-type polymers with distinct structures and provide a new perspective for preparing thermoresponsive materials with linear phase transition behavior.
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Affiliation(s)
- Ge Wang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University , Shanghai 200433, China
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University , Shanghai 200433, China
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Wang G, Wu P. Toward the dynamic phase transition mechanism of a thermoresponsive ionic liquid in the presence of different thermoresponsive polymers. SOFT MATTER 2016; 12:925-933. [PMID: 26558815 DOI: 10.1039/c5sm02032h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The influence of two thermoresponsive polymers, poly(N-isopropylacrylamide) (PNIPAM) and poly(N-vinylcaprolactam) (PVCL), on the phase transition behavior of a thermoresponsive ionic liquid, tributylhexylphosphonium 3-sulfopropylmethacrylate ([P4,4,4,6][MC3S]), was investigated. An obvious distinction was observed in the LCSTs and morphologies of [P4,4,4,6][MC3S]-PNIPAM and [P4,4,4,6][MC3S]-PVCL aqueous solutions, indicating their large differences in dynamic transition processes. In general, PNIPAM can "break" the water structure of [P4,4,4,6][MC3S] to decrease the transition temperature, while PVCL can "make" the water structure to increase it. Surprisingly, [P4,4,4,6][MC3S] has an unusual over-hydration behavior before dehydration while PNIPAM experiences a two-step transition process in [P4,4,4,6][MC3S]-PNIPAM aqueous solution, which has never been reported so far. Further studies revealed that the formation of strong intra-/inter-molecular hydrogen bonds C[double bond, length as m-dash]OD-N in PNIPAM is the driving force for the LCST phenomenon of [P4,4,4,6][MC3S]-PNIPAM solution, while it is the [P4,4,4,6][MC3S] that dominates the phase separation of [P4,4,4,6][MC3S]-PVCL solution.
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Affiliation(s)
- Ge Wang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China.
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Ge C, Liu S, Liang C, Ling Y, Tang H. Synthesis and UCST-type phase behavior of α-helical polypeptides with Y-shaped and imidazolium pendants. Polym Chem 2016. [DOI: 10.1039/c6py01287f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
UCST-type thermoresponsive polypeptides with Y-shaped and ionic liquid pendants were synthesized by a multi-step post-polymerization method.
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Affiliation(s)
- Chenglong Ge
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan
| | - Sheng Liu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan
| | - Ce Liang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan
| | - Ying Ling
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan
| | - Haoyu Tang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- College of Chemistry
- Xiangtan University
- Xiangtan
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Grygiel K, Zhang W, Detrembleur C, Yuan J. Unexpected LCST-type phase behaviour of a poly(vinyl thiazolium) polymer in acetone. RSC Adv 2016. [DOI: 10.1039/c6ra09023k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A poly(vinyl thiazolium) polymer in acetone solution exhibited an unexpected lower critical solution temperature (LCST)-type phase transition.
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Affiliation(s)
- Konrad Grygiel
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- D-14476 Potsdam
- Germany
| | - Weiyi Zhang
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- D-14476 Potsdam
- Germany
| | - Christophe Detrembleur
- Center for Education and Research on Macromolecules (CERM)
- Chemistry Department
- University of Liege (ULg)
- 4000 Liege
- Belgium
| | - Jiayin Yuan
- Department of Colloid Chemistry
- Max Planck Institute of Colloids and Interfaces
- D-14476 Potsdam
- Germany
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Dai Y, Wu P. Exploring the influence of the poly(4-vinyl pyridine) segment on the solution properties and thermal phase behaviours of oligo(ethylene glycol) methacrylate-based block copolymers: the different aggregation processes with various morphologies. Phys Chem Chem Phys 2016; 18:21360-70. [DOI: 10.1039/c6cp04286d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
P(MEO2MA-co-OEGMA)-b-P4VP copolymers with different lengths of P4VP segments exhibit diverse aggregation processes with various morphologies upon heating.
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Affiliation(s)
- Yalan Dai
- The State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science, and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
| | - Peiyi Wu
- The State Key Laboratory of Molecular Engineering of Polymers
- Collaborative Innovation Center of Polymers and Polymer Composite Materials
- Department of Macromolecular Science, and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
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