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Nan Y, Zhao C, Beaudoin G, Zhu XX. Synergistic Approaches in the Design and Applications of UCST Polymers. Macromol Rapid Commun 2023; 44:e2300261. [PMID: 37477638 DOI: 10.1002/marc.202300261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/28/2023] [Accepted: 07/11/2023] [Indexed: 07/22/2023]
Abstract
This review summarizes recent progress in the synergistic design strategy for thermoresponsive polymers possessing an upper critical solution temperature (UCST) in aqueous systems. To achieve precise control of the responsive behavior of the UCST polymers, their molecular design can benefit from a synergistic effect of hydrogen bonding with other interactions or modification of the chemical structures. The combination of UCST behavior with other stimuli-responsive properties of the polymers may yield new functional materials with potential applications such as sensors, actuators, and controlled release devices. The advances in this area provide insight or inspiration into the understanding and design of functional UCST polymers for a wide range of applications.
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Affiliation(s)
- Yi Nan
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Chuanzhuang Zhao
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Guillaume Beaudoin
- Département de Chimie, Université de Montréal, C.P. 6128, Succ, Centre-ville, Montréal, QC, H3C 3J7, Canada
| | - X X Zhu
- Département de Chimie, Université de Montréal, C.P. 6128, Succ, Centre-ville, Montréal, QC, H3C 3J7, Canada
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2
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Light, Water, and Melatonin: The Synergistic Regulation of Phase Separation in Dementia. Int J Mol Sci 2023; 24:ijms24065835. [PMID: 36982909 PMCID: PMC10054283 DOI: 10.3390/ijms24065835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/17/2023] [Indexed: 03/22/2023] Open
Abstract
The swift rise in acceptance of molecular principles defining phase separation by a broad array of scientific disciplines is shadowed by increasing discoveries linking phase separation to pathological aggregations associated with numerous neurodegenerative disorders, including Alzheimer’s disease, that contribute to dementia. Phase separation is powered by multivalent macromolecular interactions. Importantly, the release of water molecules from protein hydration shells into bulk creates entropic gains that promote phase separation and the subsequent generation of insoluble cytotoxic aggregates that drive healthy brain cells into diseased states. Higher viscosity in interfacial waters and limited hydration in interiors of biomolecular condensates facilitate phase separation. Light, water, and melatonin constitute an ancient synergy that ensures adequate protein hydration to prevent aberrant phase separation. The 670 nm visible red wavelength found in sunlight and employed in photobiomodulation reduces interfacial and mitochondrial matrix viscosity to enhance ATP production via increasing ATP synthase motor efficiency. Melatonin is a potent antioxidant that lowers viscosity to increase ATP by scavenging excess reactive oxygen species and free radicals. Reduced viscosity by light and melatonin elevates the availability of free water molecules that allow melatonin to adopt favorable conformations that enhance intrinsic features, including binding interactions with adenosine that reinforces the adenosine moiety effect of ATP responsible for preventing water removal that causes hydrophobic collapse and aggregation in phase separation. Precise recalibration of interspecies melatonin dosages that account for differences in metabolic rates and bioavailability will ensure the efficacious reinstatement of the once-powerful ancient synergy between light, water, and melatonin in a modern world.
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3
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Razzaq W, Serra CA, Chan-Seng D. Microfluidic Janus fibers with dual thermoresponsive behavior for thermoactuation. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Dinda P, Anas M, Banerjee P, Mandal TK. Dual Thermoresponsive Boc-Lysine-Based Acryl Polymer: RAFT Kinetics and Anti-Protein-Fouling of Its Zwitterionic Form. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Priyanka Dinda
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Mahammad Anas
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Palash Banerjee
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Tarun K. Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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5
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Ding Y, Zhang X, Xu B, Li W. Dendronized Gelatins Showing Both LCST and UCST-type Thermoresponsive Behavior. Polym Chem 2022. [DOI: 10.1039/d2py00118g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modification of natural polymers with stimuli-responsive synthetic moieties witnesses convergences of superior properties from natural polymers and stimuli-responsiveness to generate new intelligent materials. This was usally performed through synthetic polymers...
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6
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Illy N, Mongkhoun E. Thiolactone chemistry, a versatile platform for macromolecular engineering. Polym Chem 2022. [DOI: 10.1039/d2py00731b] [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
This review covers the extensive use of γ-thiolactone chemistry as a versatile and powerful tool for macromolecular engineering and the preparation of various polymer architectures, such as functional, alternating, or sequence-controlled (co)polymers.
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Affiliation(s)
- Nicolas Illy
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 place Jussieu, F-75005 Paris, France
| | - Emma Mongkhoun
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 place Jussieu, F-75005 Paris, France
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7
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Zhang J, Li S, Wang Z, Liu P, Zhao Y. Multitunable Thermoresponsive and Aggregation Behaviors of Linear and Cyclic Polyacrylamide Copolymers Comprising Heterofunctional Y Junctions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00794] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jian Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Siyu Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhigang Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Peng Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Youliang Zhao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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8
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Li Y, Yang Y, Pei X, Li Y, Yuan Y, Huang X. Synthesis of cucurbit
[6]
uril pendent
upper critical solution temperature
type copolymers: self‐assembly and multi‐stimuli‐responsive behavior. POLYM INT 2021. [DOI: 10.1002/pi.6211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yanli Li
- School of Chemistry and Chemical Engineering Inner Mongolia University Hohhot China
| | - YeFang Yang
- School of Chemistry and Chemical Engineering Inner Mongolia University Hohhot China
| | - Xinqi Pei
- School of Chemistry and Chemical Engineering Inner Mongolia University Hohhot China
| | - Yu Li
- School of Chemistry and Chemical Engineering Inner Mongolia University Hohhot China
| | - Yuhui Yuan
- School of Chemistry and Chemical Engineering Inner Mongolia University Hohhot China
| | - Xiaoling Huang
- School of Chemistry and Chemical Engineering Inner Mongolia University Hohhot China
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9
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Cai S, Gu S, Li X, Wan S, Chen S, He X. Controlled grafting modification of starch and UCST-type thermosensitive behavior in water. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04670-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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11
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Supramolecular control over self-assembly and double thermoresponsive behavior of an amphiphilic block copolymer. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Zhang J, Zhu X, Miao C, He Y, Zhao Y. Synthesis and properties of pH-cleavable toothbrush-like copolymers comprising multi-reactive Y junctions and a linear or cyclic backbone. Polym Chem 2020. [DOI: 10.1039/d0py00084a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Y-junction-bearing toothbrush-like copolymers can exhibit unique physical properties and hierarchical (co)assembly behaviors dependent on topology, external stimuli and hydrolysis.
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Affiliation(s)
- Jian Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Xiaomin Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Cheng Miao
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Yanzhe He
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Youliang Zhao
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
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13
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14
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Papadakis CM, Müller-Buschbaum P, Laschewsky A. Switch It Inside-Out: "Schizophrenic" Behavior of All Thermoresponsive UCST-LCST Diblock Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9660-9676. [PMID: 31314540 DOI: 10.1021/acs.langmuir.9b01444] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This feature article reviews our recent advancements on the synthesis, phase behavior, and micellar structures of diblock copolymers consisting of oppositely thermoresponsive blocks in aqueous environments. These copolymers combine a nonionic block, which shows lower critical solution temperature (LCST) behavior, with a zwitterionic block that exhibits an upper critical solution temperature (UCST). The transition temperature of the latter class of polymers is strongly controlled by its molar mass and by the salt concentration, in contrast to the rather invariant transition of nonionic polymers with type II LCST behavior such as poly(N-isopropylacrylamide) or poly(N-isopropyl methacrylamide). This allows for implementing the sequence of the UCST and LCST transitions of the polymers at will by adjusting either molecular or, alternatively, physical parameters. Depending on the location of the transition temperatures of both blocks, different switching scenarios are realized from micelles to inverse micelles, namely via the molecularly dissolved state, the aggregated state, or directly. In addition to studies of (semi)dilute aqueous solutions, highly concentrated systems have also been explored, namely water-swollen thin films. Concerning applications, we discuss the possible use of the diblock copolymers as "smart" nanocarriers.
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Affiliation(s)
- Christine M Papadakis
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Straße 1 , 85748 Garching , Germany
| | - Peter Müller-Buschbaum
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Straße 1 , 85748 Garching , Germany
- Heinz Maier-Leibnitz Zentrum (MLZ) , Lichtenbergstraße 1 , 85748 Garching , Germany
| | - André Laschewsky
- Institut für Chemie , Universität Potsdam , Karl-Liebknecht straße 24-25 , 14476 Potsdam-Golm , Germany
- Fraunhofer Institute for Applied Polymer Research IAP , Geiselbergstraße 69 , 14476 Potsdam-Golm , Germany
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15
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Jiang B, Zhang Y, Huang X, Kang T, Severtson SJ, Wang WJ, Liu P. Tailoring CO2-Responsive Polymers and Nanohybrids for Green Chemistry and Processes. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02433] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bingxue Jiang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Yuchen Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Xiaodong Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Ting Kang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Steven J. Severtson
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, 2004 Folwell Avenue, St. Paul, Minnesota 55108, United States
| | - Wen-Jun Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Pingwei Liu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
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16
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17
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Chao H, Li G, Yu J, Liu Z, Liu Z, Jiang J. Backbone‐Hydrolyzable Poly(oligo(ethylene glycol) bis(glycidyl ether)‐
alt
‐ketoglutaric acid) with Tunable LCST Behavior. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Huan Chao
- Key Laboratory of Syngas Conversion of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 Shaanxi P. R. China
| | - Guo Li
- Key Laboratory of Syngas Conversion of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 Shaanxi P. R. China
| | - Jiabao Yu
- Key Laboratory of Syngas Conversion of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 Shaanxi P. R. China
| | - Zhaotie Liu
- Key Laboratory of Syngas Conversion of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 Shaanxi P. R. China
| | - Zhong‐Wen Liu
- Key Laboratory of Syngas Conversion of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 Shaanxi P. R. China
| | - Jinqiang Jiang
- Key Laboratory of Syngas Conversion of Shaanxi ProvinceKey Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710062 Shaanxi P. R. China
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18
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Heyns IM, Pfukwa R, Bertossi L, Ball LE, Kelland MA, Klumperman B. Thermoresponsive behavior of poly(3-methylene-2-pyrrolidone) derivatives. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.10.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Cheng F, Su T, Luo K, Pu Y, He B. The polymerization kinetics, oxidation-responsiveness, and in vitro anticancer efficacy of poly(ester-thioether)s. J Mater Chem B 2019; 7:1005-1016. [PMID: 32255105 DOI: 10.1039/c8tb02980f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The oxidation-responsiveness and biomedical properties of poly(ester-thioether)s could be tuned by varying the polymer backbones.
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Affiliation(s)
- Furong Cheng
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Ting Su
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- Center for Translational Medicine
| | - Kui Luo
- Huaxi MR Research Center (HMRRC)
- Department of Radiology, West China Hospital, Sichuan University
- Chengdu 610041
- China
| | - Yuji Pu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Bin He
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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20
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Tang D, Dai W, Zhang J, Zhou X, Zhao Y. Facile synthesis of dual-responsive thioether-bridging graft copolymers by combination of controlled polymerization and thio-bromo click reaction. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Poly(imidazoled glycidyl methacrylate-co-diethyleneglycol methyl ether methacrylate) – A new copolymer with tunable LCST and UCST behavior in water. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Käfer F, Pretscher M, Agarwal S. Tuning the Phase Transition from UCST-Type to LCST-Type by Composition Variation of Polymethacrylamide Polymers. Macromol Rapid Commun 2018; 39:e1800640. [DOI: 10.1002/marc.201800640] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/19/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Florian Käfer
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces, Universitätsstrasse 30; 95440 Bayreuth Germany
| | - Martin Pretscher
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces, Universitätsstrasse 30; 95440 Bayreuth Germany
| | - Seema Agarwal
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces, Universitätsstrasse 30; 95440 Bayreuth Germany
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23
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Kawata Y, Yamamoto T, Kihara H, Yamamura Y, Saito K, Ohno K. Unusual photoresponses in the upper critical solution temperature of polymer solutions mediated by changes in intermolecular interactions in an azo-doped liquid crystalline solvent. Phys Chem Chem Phys 2018; 20:5850-5855. [PMID: 29412201 DOI: 10.1039/c7cp08335a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoinduced changes in the upper critical solution temperature (UCST) were investigated for polymer solutions in an azobenzene-doped liquid crystal solvent. The UCST of poly(methyl methacrylate) (PMMA) and polystyrene (PS) solutions dropped upon irradiation with UV light, which induces trans-cis photoisomerization of the doped azo dye. In the case of PMMA solutions, the photoinduced drop in UCST was significantly larger than that expected from previous studies using azo-based polymers and common solvents. Moreover, the UCST of PS solutions also decreased under photoirradiation, in a direction opposite to that expected from the contribution of polarity. X-ray diffraction data of the solvent suggest that the decreased intermolecular interaction in the solvent (i.e. larger distance between the solvent molecules) is responsible for the photoresponsive behavior of the UCST. The proposed mechanism is consistent with the Flory-Huggins theory. Using such photoresponses in the UCST, the isothermal transition between 2-phase and 1-phase states by photoirradiation was demonstrated.
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Affiliation(s)
- Yuki Kawata
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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24
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Wu W, Dai W, Zhao X, Zhang J, Zhao Y. Synthesis, self-assembly and drug release behaviors of reduction-labile multi-responsive block miktobrush quaterpolymers with linear and V-shaped grafts. Polym Chem 2018. [DOI: 10.1039/c8py00245b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Stimuli-tunable topological/morphological transitions and drug release properties based on novel disulfide-functionalized coil–comb–coil quaterpolymers were revealed.
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Affiliation(s)
- Wentao Wu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wenxue Dai
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Xiaoqi Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Jian Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Youliang Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
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25
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Zhao X, Wu W, Zhang J, Dai W, Zhao Y. Thermoresponse and self-assembly of an ABC star quarterpolymer with O2 and redox dual-responsive Y junctions. Polym Chem 2018. [DOI: 10.1039/c8py00085a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stimuli-tunable LCST-type phase transition and self-assembly behaviors of a multi-responsive 3-miktoarm star bearing O2/redox-sensitive and H-bond-switchable Y junctions were revealed.
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Affiliation(s)
- Xiaoqi Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wentao Wu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Jian Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wenxue Dai
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Youliang Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
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