1
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Zhang H, Ma S, Zhang Q, Cao M, Wang Y, Gu Y, Xu X. Thermoreversible and Self-Protective Sol-Gel Transition Electrolytes for All-Printed Transferable Microsupercapacitors as Safer Micro-Energy Storage Devices. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41819-41831. [PMID: 32812744 DOI: 10.1021/acsami.0c10624] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The safety issue caused by thermal runaway poses a huge threat toward the lifespan and application of high-density electrochemical energy storage devices, especially in the field of micro-energy, such as microsupercapacitors (MSCs). The heat accumulation is difficult to be eliminated, considering the narrow space inside integrated electronic devices attached to the MSC group. Active thermal management is of paramount importance to ensure the normal operation of electronic devices. However, existing one-time thermal protection strategies cannot fully meet current requirements. Herein, we report a promising thermoreversible temperature-responsive electrolyte system, which can shut down the current flow before thermal runaway occurs, thanks to the sol-gel transition of Pluronic [poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide)]-based graft copolymer solution. As the temperature rises to 80 °C, the self-protective electrolyte will change from the sol state to gel state. Meanwhile, the internal resistance increases and ionic conductivity decreases gradually as a result of the gelation of the sol electrolyte. The capacity of the energy storage device using the self-protective electrolyte is reduced by about 95%, and the ionic conductivity remains at only 1% at 80 °C compared with the initial value at room temperature, and it can be restored after cooling down. During 20 heating/cooling cycles, the electrochemical performance is substantially stable, demonstrating a potential approach to achieve repeatability and self-protection for micro-energy storage devices according to temperature changes. In addition, we integrated the as-prepared self-protective electrolyte into MSCs via three-dimensional printing technology to design an all-printed transferable micro-energy storage device with the dynamic reversible self-protection behavior, and the thermo-switchable protection mechanism under series and parallel conditions were studied under appropriate temperature window (25-80 °C). The strategy disclosed herein is expected to provide new insights into the new-generation smart MSCs for their wide applications in diverse fields such as microelectronics and wearable devices.
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Affiliation(s)
- Hao Zhang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, P. R. China
| | - Shaoshuai Ma
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, P. R. China
| | - Qian Zhang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, P. R. China
| | - Mingchao Cao
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, P. R. China
| | - Yutian Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, P. R. China
| | - Yifan Gu
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Composite and Functional Materials, 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 University, Tianjin 300072, P. R. China
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2
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Chang X, Wang C, Shan G, Bao Y, Pan P. Thermoresponsivity, Micelle Structure, and Thermal-Induced Structural Transition of an Amphiphilic Block Copolymer Tuned by Terminal Multiple H-Bonding Units. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:956-965. [PMID: 31917586 DOI: 10.1021/acs.langmuir.9b03290] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Constructing noncovalent interactions has been a benign method to tune the stimuli responsivity and assembled structure of polymers in solution; this is essential for controlling the functions and properties of stimuli-responsive materials. Herein, we demonstrate a novel supramolecular strategy to manipulate the cloud point (Tcp) and assembled structure of thermoresponsive polymers in solution by using H-bonding interactions. We use poly(lactide-co-glycolide)-b-poly(ethylene glycol)-b- poly(lactide-co-glycolide) (PLGA-PEG-PLGA) as a model thermoresponsive polymer and functionalize its chain terminals by the self-complementary quadruple H-bonding motif, 2-ureido-4[1H]-pyrimidinone (UPy). UPy end functionalization and increasing PLGA block length decrease the Tcp of copolymer. Both UPy- and nonfunctionalized copolymers form the spherical micelles at low temperature. They undergo the intermicellar aggregation and form large compound micelles during heating; this thermally induced structural transition causes the presence of Tcp. Due to the UPy-UPy H-bonding interactions, UPy end functionalization leads to more copolymer chains to associate in one micelle, thus, enhancing the hydrodynamic, gyration radii, core size, as well as the packing density of PLGA in micelle core and grafting density of PEG on core-shell interface. The decreased Tcp of UPy-functionalized copolymer stemmed from the stronger intermicellar attractions at high temperature. Furthermore, UPy-functionalized copolymers exhibit higher drug loading content, slower drug release rate, and better separation efficiency in removing the hydrophobic substances from water than PLGA-PEG-PLGA precursors.
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Affiliation(s)
- Xiaohua Chang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , China
| | - Chen Wang
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education , Shaanxi University of Science and Technology , Xi'an 710021 , China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , China
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3
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Chang X, Mao H, Shan G, Bao Y, Pan P. Tuning the Thermoresponsivity of Amphiphilic Copolymers via Stereocomplex Crystallization of Hydrophobic Blocks. ACS Macro Lett 2019; 8:357-362. [PMID: 35651137 DOI: 10.1021/acsmacrolett.9b00125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thermoresponsive polymers that exhibit a cloud point temperature (Tcp) are an important class of stimuli-responsive polymers that have great potential for biomedical applications. Precise tuning of the Tcp is of fundamental importance for designing thermoresponsive polymers. However, tuning the Tcp generally requires sophisticated control over the chemical and assembled structures of thermoresponsive polymers. Here, we report a simple yet effective method to tune the Tcp of thermoresponsive polymers only by mixing and varying the mixing ratios of amphiphilic copolymer pair that contains l- and d-configured hydrophobic blocks in a dilute solution. Stereocomplex (SC) crystallization of the l- and d-configured blocks led to form core-shell micelles with a larger size, a bigger core, and a higher aggregation number, which facilitated the intermicellar aggregation upon heating due to improved intermicellar attractions. SC crystallization of the hydrophobic blocks improved the separation efficacy of the thermoresponsive copolymers for removal of hydrophobic pollutants from water.
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Affiliation(s)
- Xiaohua Chang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University 38 Zheda Road, Hangzhou 310027, China
| | - Hailiang Mao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University 38 Zheda Road, Hangzhou 310027, China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University 38 Zheda Road, Hangzhou 310027, China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University 38 Zheda Road, Hangzhou 310027, China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University 38 Zheda Road, Hangzhou 310027, China
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4
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Deng Y, Li X, Zhang Q, Luo Z, Han C, Dong S. LCST phase behavior of benzo-21-crown-7 with different alkyl chains. Beilstein J Org Chem 2019; 15:437-444. [PMID: 30873228 PMCID: PMC6404474 DOI: 10.3762/bjoc.15.38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 02/01/2019] [Indexed: 12/24/2022] Open
Abstract
The introduction of hydrophobic units into crown ethers can dramatically decrease the critical transition temperature of LCST and realize macroscopic phase separation at low to moderate temperature and concentration. Minor modifications in the chemical structure of crown ethers (benzo-21-crown-7, B21C7s) can effectively control the thermo-responsive properties.
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Affiliation(s)
- Yan Deng
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Qiao Zhang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Zheng Luo
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Chengyou Han
- Department of Chemistry, College of science, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
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5
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Zheng B, Luo Z, Deng Y, Zhang Q, Gao L, Dong S. A degradable low molecular weight monomer system with lower critical solution temperature behaviour in water. Chem Commun (Camb) 2019; 55:782-785. [PMID: 30569924 DOI: 10.1039/c8cc09160a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A degradable thermo-responsive system was prepared and investigated. The degradation behaviour induced by the cleavage process of the thermo-sensitive crown ethers effectively altered the thermo-responsiveness.
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Affiliation(s)
- Bo Zheng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, P. R. China
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6
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Ouyang Y, Zhang Y, Luo Z, Li X, Duan A, Dong S. Differences in solubilities, crystal structures, NMR spectra and fluorescence emissions induced by potassium cation/benzo-21-crown-7 molecular recognition. NEW J CHEM 2019. [DOI: 10.1039/c9nj03208h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Changes of the fundamental properties of host–guest pairs induced by potassium cation complexation were investigated.
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Affiliation(s)
- Yunyun Ouyang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yi Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Zheng Luo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Abing Duan
- College of Environmental Science and Engineering, Hunan University
- Changsha 410082
- P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
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7
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Luo Z, Deng Y, Li X, Zhang Q, Wu J, Qi Z, Jin L, Dong S. LCST behavior controlled by size-matching selectivity from low molecular weight monomer systems. NEW J CHEM 2019. [DOI: 10.1039/c9nj00846b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
LCST behavior was controlled by crown ether–cation recognition motifs via size-matching selectivity.
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Affiliation(s)
- Zheng Luo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yan Deng
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qiao Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Jianfeng Wu
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology
- School of Life Sciences
- Northwestern Polytechnical University
- Xi’an
- P. R. China
| | - Zhenhui Qi
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology
- School of Life Sciences
- Northwestern Polytechnical University
- Xi’an
- P. R. China
| | - Lin Jin
- Sino-German Joint Research Lab for Space Biomaterials and Translational Technology
- School of Life Sciences
- Northwestern Polytechnical University
- Xi’an
- P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
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8
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Fu X, Hosta-Rigau L, Chandrawati R, Cui J. Multi-Stimuli-Responsive Polymer Particles, Films, and Hydrogels for Drug Delivery. Chem 2018. [DOI: 10.1016/j.chempr.2018.07.002] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Lee J, Lee B, Park J, Oh J, Kim T, Seo M, Kim SY. Synthesis and phase transition behavior of well-defined Poly(arylene ether sulfone)s by chain growth condensation polymerization in organic media. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.08.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Yang H, Leow WR, Chen X. Thermal-Responsive Polymers for Enhancing Safety of Electrochemical Storage Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704347. [PMID: 29363208 DOI: 10.1002/adma.201704347] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/03/2017] [Indexed: 06/07/2023]
Abstract
Thermal runway constitutes the most pressing safety issue in lithium-ion batteries and supercapacitors of large-scale and high-power density due to risks of fire or explosion. However, traditional strategies for averting thermal runaway do not enable the charging-discharging rate to change according to temperature or the original performance to resume when the device is cooled to room temperature. To efficiently control thermal runaway, thermal-responsive polymers provide a feasible and reversible strategy due to their ability to sense and subsequently act according to a predetermined sequence when triggered by heat. Herein, recent research progress on the use of thermal-responsive polymers to enhance the thermal safety of electrochemical storage devices is reviewed. First, a brief discussion is provided on the methods of preventing thermal runaway in electrochemical storage devices. Subsequently, a short review is provided on the different types of thermal-responsive polymers that can efficiently avoid thermal runaway, such as phase change polymers, polymers with sol-gel transitions, and polymers with positive temperature coefficients. The results represent the important development of thermal-responsive polymers toward the prevention of thermal runaway in next-generation smart electrochemical storage devices.
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Affiliation(s)
- Hui Yang
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Wan Ru Leow
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiaodong Chen
- Innovative Centre for Flexible Devices (iFLEX), School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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11
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Wang L, Li X, Zhang Q, Luo Z, Deng Y, Yang W, Dong S, Wang QA, Han C. Supramolecular control over pillararene-based LCST phase behaviour. NEW J CHEM 2018. [DOI: 10.1039/c8nj01366g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on the supramolecular interactions between pillar[5]arenes and ionic liquids, supramolecular control was successfully introduced into thermo-responsive systems to adjust LCST phase behaviour in water.
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Affiliation(s)
- Li Wang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Xing Li
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qiao Zhang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Zheng Luo
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Yan Deng
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Wen Yang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Qiu-an Wang
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Chengyou Han
- Department of Chemistry
- College of Science
- China University of Petroleum (East China)
- Qingdao
- China
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12
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Yang H, Liu Z, Chandran BK, Deng J, Yu J, Qi D, Li W, Tang Y, Zhang C, Chen X. Self-Protection of Electrochemical Storage Devices via a Thermal Reversible Sol-Gel Transition. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:5593-8. [PMID: 26294084 DOI: 10.1002/adma.201502484] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Revised: 06/30/2015] [Indexed: 05/22/2023]
Abstract
Thermal self-protected intelligent electrochemical storage devices are fabricated using a reversible sol-gel transition of the electrolyte, which can decrease the specific capacitance and increase and enable temperature-dependent charging and discharging rates in the device. This work represents proof of a simple and useful concept, which shows tremendous promise for the safe and controlled power delivery in electrochemical devices.
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Affiliation(s)
- Hui Yang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhiyuan Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Bevita K Chandran
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jiyang Deng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jiancan Yu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Dianpeng Qi
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Wenlong Li
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yuxin Tang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Chenguang Zhang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiaodong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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13
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Arai M, Ito K. Lower Critical Solution Temperature Behaviors of Aromatic Compounds with Oligo(ethylene glycol) Chains. CHEM LETT 2015. [DOI: 10.1246/cl.150596] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masato Arai
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University
| | - Kazuaki Ito
- Department of Chemistry and Chemical Engineering, Graduate School of Science and Engineering, Yamagata University
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14
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Feng A, Yan Q, Zhang H, Peng L, Yuan J. Electrochemical redox responsive polymeric micelles formed from amphiphilic supramolecular brushes. Chem Commun (Camb) 2015; 50:4740-2. [PMID: 24681929 DOI: 10.1039/c4cc00463a] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The end-decorated homopolymer poly(ε-caprolactone)-ferrocene threaded onto a β-cyclodextrin-functionalized main-chain polymer can form a class of amphiphilic noncovalent graft copolymers based on the host-guest interactions of the terminal groups on the side chains. These new supramolecular polymer brushes can further self-assemble into micellar aggregates that exhibit reversible assembly and disassembly behavior under an electrochemical redox trigger, which opens up a new route to building dynamic block copolymer topologies.
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Affiliation(s)
- Anchao Feng
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China.
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15
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Wei P, Cook TR, Yan X, Huang F, Stang PJ. A discrete amphiphilic organoplatinum(II) metallacycle with tunable lower critical solution temperature behavior. J Am Chem Soc 2014; 136:15497-500. [PMID: 25340861 DOI: 10.1021/ja5093503] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Oligo(ethylene glycol) (OEG)-decorated supramolecular assemblies are distinguished by their neutral character and macroscopic temperature-sensitive phase transition behavior. OEG functionalization is an emerging strategy to obtain thermoresponsive macrocyclic amphiphiles, although known methods organize the hydrophilic and hydrophobic segments by covalent bonding. Coordination-driven self-assembly offers an alternative route for organizing OEG-functionalized precursors into nanoscopic architectures, resulting in well-defined metallacycle cores surrounded by hydrophilic scaffolds to impart overall amphiphilic character. Here a tri(ethylene glycol)-functionalized thermosensitive amphiphilic metallacycle was prepared with high efficiency by means of the directional-bonding approach. The ensembles thus formed showed good lower critical solution temperature behavior with a highly sensitive phase separation and excellent reversibility. Moreover, the clouding point decreased with increasing metallacycle concentration and addition of K(+).
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Affiliation(s)
- Peifa Wei
- State Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University , Hangzhou 310027, P. R. China
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16
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Xu JF, Niu LY, Chen YZ, Wu LZ, Tung CH, Yang QZ. Hydrogen Bonding Directed Self-Assembly of Small-Molecule Amphiphiles in Water. Org Lett 2014; 16:4016-9. [DOI: 10.1021/ol501841f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jiang-Fei Xu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Li-Ya Niu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yu-Zhe Chen
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Li-Zhu Wu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Chen-Ho Tung
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Zheng Yang
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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17
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Cao W, Gu Y, Meineck M, Li T, Xu H. Tellurium-Containing Polymer Micelles: Competitive-Ligand-Regulated Coordination Responsive Systems. J Am Chem Soc 2014; 136:5132-7. [DOI: 10.1021/ja500939m] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wei Cao
- Key Lab of Organic Optoelectronics
and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yuwei Gu
- Key Lab of Organic Optoelectronics
and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Myriam Meineck
- Key Lab of Organic Optoelectronics
and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Tianyu Li
- Key Lab of Organic Optoelectronics
and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Huaping Xu
- Key Lab of Organic Optoelectronics
and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
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18
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Ding Y, Yi Y, Xu H, Wang Z, Zhang X. Redox-responsive thermal sensitivity based on a selenium-containing small molecule. Chem Commun (Camb) 2014; 50:2585-8. [DOI: 10.1039/c3cc49753d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kashyap S, Jayakannan M. Thermo-responsive and shape transformable amphiphilic scaffolds for loading and delivering anticancer drugs. J Mater Chem B 2014; 2:4142-4152. [DOI: 10.1039/c4tb00134f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Dong S, Zheng B, Yao Y, Han C, Yuan J, Antonietti M, Huang F. LCST-type phase behavior induced by pillar[5]arene/ionic liquid host-guest complexation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:6864-6867. [PMID: 24105906 DOI: 10.1002/adma.201303652] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Indexed: 06/02/2023]
Abstract
The host-guest complex of dipropoxypillar[5]arene and an ionic liquid 1,3-dimethylimidazolium iodide is found to exhibit a lower critical solution temperature (LCST)-type phase transition in chloroform. This LCST-type phase behavior can be conveniently modulated by experimental parameters and can be easily combined with the ionic liquid for potential application in product and educt separation.
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Affiliation(s)
- Shengyi Dong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
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