1
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Nguyen A, Dallerba E, Lowe AB. Tetrazole as a Carboxylic Acid Isostere and the Synthesis of All Amine-Based Polyampholytes. Macromol Rapid Commun 2022; 43:e2200096. [PMID: 35394677 DOI: 10.1002/marc.202200096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/22/2022] [Indexed: 11/11/2022]
Abstract
A new family of polyampholytes (PAMs) is described in which both the basic and acidic groups are based on nitrogen functional groups. Reversible addition-fragmentation chain transfer-prepared poly(pentafluorophenyl acrylate) is quantitatively modified sequentially with 3-picolylamine and 5-aminotetrazole, yielding the new well-defined statistical PAMs. Successful formation of the PAMs is confirmed via a combination of 19 F and 13 C NMR spectroscopy and FTIR. Aqueous electrophoresis indicates isoelectric points (pI) between 2.9 and 4.4 depending on copolymer composition. However, the pI is somewhat insensitive to the copolymer composition, a feature attributed to the similarity of the pKa s of the acid tetrazole species and the conjugate acid of the pyridyl repeat units.
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Affiliation(s)
- Amber Nguyen
- School of Molecular and Life Sciences, Curtin University, Bentley, Perth, Western Australia, 6102, Australia
| | - Elena Dallerba
- School of Molecular and Life Sciences, Curtin University, Bentley, Perth, Western Australia, 6102, Australia
| | - Andrew B Lowe
- School of Molecular and Life Sciences, Curtin University, Bentley, Perth, Western Australia, 6102, Australia
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2
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Qin HY, Liu Z, Dan Yang X, Liu YQ, Xie R, Ju XJ, Wang W, Chu LY. Pseudo Polyampholytes with Sensitively Ion-Responsive Conformational Transition Based on Positively Charged Host-Guest Complexes. Macromol Rapid Commun 2022; 43:e2200127. [PMID: 35334130 DOI: 10.1002/marc.202200127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/18/2022] [Indexed: 11/09/2022]
Abstract
Biological polyampholytes are ubiquitous in living organisms with primary functions including that serving as transporters for moving chemical molecular species across the cell membranes. Synthetic amphoteric macromolecules that can change their phase states depending on the environment to simulate some properties of natural polyampholytes are of great interests. Here, we explore implementation of synthetic pseudo polymeric ampholytes with ion-recognition-triggered conformational change. The phase transition behaviors of the ion-recognition-creative polyampholytes that containing deprotonated carboxylic acid groups as negative charges and 18-crown-6 units for forming positively charged host-guest complexes are systematically investigated. The ion-recognition-triggered phase transition behaviors of pseudo polyampholytes are significantly dependent on cation species and concentrations. Only those specific ions like K+ , Ba2+ , Sr2+ and Pb2+ ions that can form 1:1 host-guest complexes with 18-crown-6 units in polymers enable to control over the conformational change like that of the traditional pH-dependent polyampholytes. By regulating the content of the carboxylic acid groups to match the content of the ion-recognized positive charges provided by the host-guest complexes, the pseudo polyampholytes are more sensitive to the recognizable cations. Such ion-recognition-triggered amphoteric characteristics make the pseudo polyampholytes acting like biological proteins, nucleic acids and enzymes as molecular transporters, genetic code storage and biocatalysts in artificial systems. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hai-Yue Qin
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Xue- Dan Yang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Yu-Qiong Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
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3
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Beaudoin G, Lasri A, Zhao C, Liberelle B, De Crescenzo G, Zhu XX. Making Hydrophilic Polymers Thermoresponsive: The Upper Critical Solution Temperature of Copolymers of Acrylamide and Acrylic Acid. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00952] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Guillaume Beaudoin
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Québec H3C 3J7, Canada
| | - Anne Lasri
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Québec H3C 3J7, Canada
| | - Chuanzhuang Zhao
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Benoît Liberelle
- Department of Chemical Engineering, Groupe de Recherche en Sciences et Technologies Biomédicales, Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal, Québec H3C 3A7, Canada
| | - Gregory De Crescenzo
- Department of Chemical Engineering, Groupe de Recherche en Sciences et Technologies Biomédicales, Bio-P2 Research Unit, École Polytechnique de Montréal, P.O. Box 6079, succ. Centre-Ville, Montréal, Québec H3C 3A7, Canada
| | - Xiao-Xia Zhu
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montreal, Québec H3C 3J7, Canada
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4
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Kudaibergenov SE, Okay O. Behaviors of quenched polyampholytes in solution and gel state. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sarkyt E. Kudaibergenov
- Laboratory of Engineering Profile Satbayev University Almaty Republic of Kazakhstan
- Department of Functional Polymers Institute of Polymer Materials and Technology Almaty Republic of Kazakhstan
| | - Oguz Okay
- Department of Chemistry Istanbul Technical University Istanbul Turkey
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5
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Kollár J, Popelka A, Tkac J, Žabka M, Mosnáček J, Kasak P. Sulfobetaine-based polydisulfides with tunable upper critical solution temperature (UCST) in water alcohols mixture, depolymerization kinetics and surface wettability. J Colloid Interface Sci 2021; 588:196-208. [PMID: 33387822 DOI: 10.1016/j.jcis.2020.12.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 02/07/2023]
Abstract
HYPOTHESIS Synthesis of a new family of polymers having a polydisulfide structure can be conducted from sulfobetaine-based derivative of natural (R)-lipoic acid. A polydisulfide backbone of polymer can be depolymerized by response to external stimuli and sulfobetaine pendant groups ensure the upper critical solution temperature (UCST) behaviour temperatures that can be modulated according to the nature of the solvent and concentration. EXPERIMENTS Sulfobetaine-bearing polydisulfides were synthesized from dithiolane derivatives and then characterized. UCST behavior of the polymers in water and in mixtures containing different alcohols (methanol, ethanol, isopropanol) was investigated. The regeneration of monomers from the polymers in response to external stimuli was examined using UV-vis and circular dichroism (CD) spectroscopy. Tunable surface wettability were shown on the grafted polymers. FINDINGS Decreasing polarity and/or increasing alcohol percentage in the water mixtures induced an increase in the cloud points of the polymers in the solutions. Thermoresponsive behaviour were repeatable and fully reversible with negligible hysteresis from aggregate to unimer state. The regeneration of monomers by depolymerization was tunable by temperature and sunlight. A thickness dependence on surface wettability was observed on wafers covalently modified with polydisulfides. This is the first report of sulfobetaine-based polydisulfides showing tunable UCST behavior and surface wettability.
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Affiliation(s)
- Jozef Kollár
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar; Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovak Republic
| | - Anton Popelka
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Jan Tkac
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava 845 38, Slovak Republic
| | - Matej Žabka
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Jaroslav Mosnáček
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovak Republic; Centre for Advanced Materials Application, Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava, Slovak Republic
| | - Peter Kasak
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar.
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6
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Sharker K, Shigeta Y, Ozoe S, Damsongsang P, Hoven VP, Yusa SI. Upper Critical Solution Temperature Behavior of pH-Responsive Amphoteric Statistical Copolymers in Aqueous Solutions. ACS OMEGA 2021; 6:9153-9163. [PMID: 33842784 PMCID: PMC8028163 DOI: 10.1021/acsomega.1c00351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Amphoteric statistical equivalent copolymers (P(2VP/NaSS) n ) composed of 2-vinylpyridine (2VP) and anionic sodium p-styrenesulfonate (NaSS) were prepared via reversible addition-fragmentation chain transfer polymerization. The degrees of polymerization (n) were 19 and 95. The monomer reactivity ratio, time conversion profile, and 1H nuclear magnetic resonance diffusion-ordered spectra suggested that the copolymerization of 2VP and NaSS provided statistical or near to random copolymers. P(2VP/NaSS) n exhibited an upper critical solution temperature (UCST) in acidic aqueous solutions on the basis of the charge interactions between the protonated cationic 2VP and anionic NaSS units. With an increase in pH value, the interaction was weakened because of the deprotonation of the 2VP units, thus reducing the UCST. At high [NaCl], the electrostatic interactions among the polymers were weakened because of the screening effect, and again, the UCST was reduced. With an increase in polymer concentration, the intra- and interpolymer interactions increased because of some entanglement, and the UCST consequently increased. Electrostatic interactions among the polymer chains with high molecular weight occurred easier than those among the low-molecular-weight polymer chains, which increased the UCST. The UCST also increased when deuterium oxide was used instead of hydrogen oxide, which was due to the isotopic effect. Hence, the UCST of P(2VP/NaSS) n can be adjusted according to the desired application.
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Affiliation(s)
- Komol
Kanta Sharker
- Department
of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Yusuke Shigeta
- Tosoh
Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan
| | - Shinji Ozoe
- Tosoh
Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan
| | - Panittha Damsongsang
- Department
of Chemistry, Faculty of Science, Chulalongkorn
University, Phayathai
Road, Pathumwan, Bangkok 10330, Thailand
| | - Voravee P. Hoven
- Department
of Chemistry, Faculty of Science, Chulalongkorn
University, Phayathai
Road, Pathumwan, Bangkok 10330, Thailand
| | - Shin-ichi Yusa
- Department
of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
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7
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Fukumoto H, Ishihara K, Yusa SI. Thermo-Responsive Behavior of Mixed Aqueous Solution of Hydrophilic Polymer with Pendant Phosphorylcholine Group and Poly(Acrylic Acid). Polymers (Basel) 2021; 13:polym13010148. [PMID: 33401453 PMCID: PMC7794920 DOI: 10.3390/polym13010148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 11/29/2022] Open
Abstract
A mixed aqueous solution of hydrophilic poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) and poly(acrylic acid) (PAAc) becomes cloudy under acidic conditions at room temperature. The pendant carboxylic acid groups in PAAc form hydrogen bonds with the ester and phosphate groups in PMPC. While the polymers aggregate under acidic conditions, neither one associate under basic conditions because of the deprotonation of the pendant carboxy groups in PAAc. We observed that the interpolymer complex formed from PMPC, and PAAc was dissociated in aqueous solutions with increasing temperature, which is an upper critical solution temperature behavior. With increasing temperature, the molecular motion increased to dissociate the interpolymer complex. The phase transition temperature increased with increasing polymer and salt concentrations, and with decreasing pH.
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Affiliation(s)
- Hirokazu Fukumoto
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, Hyogo 671-2280, Japan;
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan;
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, Hyogo 671-2280, Japan;
- Correspondence: ; Tel.: +81-79-267-4954; Fax: +81-79-266-8868
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8
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Mertens C, Aksakal R, Badi N, Du Prez FE. Sequence-defined oligoampholytes using hydrolytically stable vinyl sulfonamides: design and UCST behaviour. Polym Chem 2021. [DOI: 10.1039/d1py00662b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Water soluble sequence-defined oligoampholytes with precisely positioned charges were synthesised via an iterative solid-phase synthesis protocol using vinyl sulfonamide and acrylate building blocks.
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Affiliation(s)
- Chiel Mertens
- Polymer Chemistry Research group
- Centre of Macromolecular Chemistry (CMaC)
- Department of organic and Macromolecular Chemistry
- Faculty of Sciences
- Ghent University
| | - Resat Aksakal
- Polymer Chemistry Research group
- Centre of Macromolecular Chemistry (CMaC)
- Department of organic and Macromolecular Chemistry
- Faculty of Sciences
- Ghent University
| | - Nezha Badi
- Polymer Chemistry Research group
- Centre of Macromolecular Chemistry (CMaC)
- Department of organic and Macromolecular Chemistry
- Faculty of Sciences
- Ghent University
| | - Filip E. Du Prez
- Polymer Chemistry Research group
- Centre of Macromolecular Chemistry (CMaC)
- Department of organic and Macromolecular Chemistry
- Faculty of Sciences
- Ghent University
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9
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Sharker KK, Shigeta Y, Ozoe S, Yusa SI. Amphoteric Statistical Copolymers with Well-controlled Structure and Upper Critical Solution Temperature in Aqueous Solutions. CHEM LETT 2020. [DOI: 10.1246/cl.200561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Komol Kanta Sharker
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Yusuke Shigeta
- Tosoh Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan
| | - Shinji Ozoe
- Tosoh Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan
| | - Shin-ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
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10
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Saha P, Santi M, Frenken M, Palanisamy AR, Ganguly R, Singha NK, Pich A. Dual-Temperature-Responsive Microgels from a Zwitterionic Functional Graft Copolymer with Superior Protein Repelling Property. ACS Macro Lett 2020; 9:895-901. [PMID: 35648523 DOI: 10.1021/acsmacrolett.0c00304] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, we developed a synthetic strategy to synthesize dual-temperature-responsive low surface fouling zwitterionic microgels. Statistical poly(N-vinylcaprolactam-co-glycidyl methacrylate) copolymers were synthesized by RAFT polymerization and post-modified by thiol-epoxy click reaction with thiol end-group-modified poly(sulfobetaine) macro-RAFT (PSB-SH) to obtain poly(N-vinylcaprolactam-co-glycidyl methacrylate)-graft-poly(sulfobetaine) (PVCL-co-PGMA-g-PSB) graft copolymers. Synthesized graft copolymers were cross-linked by diamine cross-linker in water-in-oil (w/o) inverse mini-emulsion to obtain zwitterionic microgels. Using this approach, we synthesized microgels with unique microstructure, high loading and uniform distribution of poly(sulfobetaine) chains, which exhibits tunable dual-volume phase transition temperatures. The microgels also showed excellent antifouling property reflected in strongly reduced protein absorption on a microgel-coated surface observed in real time by a Quartz Crystal Microbalance with Dissipation (QCM-D) monitoring experiment with continuous flow of protein solution. Therefore, this kind of zwitterionic microgel can be potentially used for temperature-triggered drug delivery and anti-bioadhesion coating material as well.
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Affiliation(s)
- Pabitra Saha
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
| | - Marta Santi
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
| | - Martin Frenken
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
| | - Anand Raj Palanisamy
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Ritabrata Ganguly
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Nikhil K. Singha
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Andrij Pich
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Maastricht, The Netherlands
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11
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Maji S, Jerca VV, Hoogenboom R. Dual pH and thermoresponsive alternating polyampholytes in alcohol/water solvent mixtures. Polym Chem 2020. [DOI: 10.1039/d0py00032a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyampholytes consist of alternating opposite charges were synthesized by alternating RAFT (co)polymerization of cationic and anionic monomers and their pH dependent thermoresponsive behavior in water and alcohol/water solvent mixtures is reported.
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Affiliation(s)
- Samarendra Maji
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- Ghent
| | - Valentin Victor Jerca
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- Ghent
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Centre of Macromolecular Chemistry (CMaC)
- Department of Organic and Macromolecular Chemistry
- Ghent University
- Ghent
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12
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Zhao C, Ma Z, Zhu X. Rational design of thermoresponsive polymers in aqueous solutions: A thermodynamics map. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.01.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Blackman LD, Gunatillake PA, Cass P, Locock KES. An introduction to zwitterionic polymer behavior and applications in solution and at surfaces. Chem Soc Rev 2019; 48:757-770. [PMID: 30548039 DOI: 10.1039/c8cs00508g] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Zwitterionic polymers, including polyampholytes and polybetaines, are polymers with both positive and negative charges incorporated into their structure. They are a unique class of smart materials with great potential in a broad range of applications in nanotechnology, biomaterials science, nanomedicine and healthcare, as additives for bulk construction materials and crude oil, and in water remediation. In this Tutorial Review, we aim to highlight their structural diversity and design criteria, and their preparation using modern techniques. Their behavior, both in solution and at surfaces, will be examined under a range of environmental conditions. Finally, we will exemplify how their unique behaviors give rise to specific properties tailored to a selection of their numerous applications.
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Affiliation(s)
- Lewis D Blackman
- Manufacturing Business Unit, Commonwealth Scientific and Industrial Research Organisation, Bayview Avenue, Clayton, VIC 3168, Australia.
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14
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Zhao J, Johnson MA, Fisher R, Burke NAD, Stöver HDH. Synthetic Polyampholytes as Macromolecular Cryoprotective Agents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1807-1817. [PMID: 30134094 DOI: 10.1021/acs.langmuir.8b01602] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A series of polyampholytes based on different molar ratios on N, N-dimethylaminopropyl methacrylamide (DMAPMA), acrylic acid (AA), and optionally, N- tert-butylacrylamide ( t-BuAAm), were prepared by free radical copolymerization, and tested as DMSO-free cryoprotective agents for 3T3 fibroblast cells by using a standard freeze-rethaw protocol. Polybetaines prepared by reaction of DMAPMA homo and copolymers with 1,3-propane sultone were used as additional controls. Results showed strong effects of copolymer composition, molecular weight, polymer and NaCl concentrations, on post-thaw cell viability. Binary (DMAPMA/AA) copolymers showed best post-thaw cell viability of 70% at a 30/70 mol % ratio of DMAPMA/AA, which increased to 90% upon introduction of 9 mol % t-BuAAm while maintaining the 30/70 mol % cation/anion ratio. The use of acrylamide linkages in DMAPMA ensures absence of hydrolytic loss of cationic side chains. These polyampholytes were found to decrease ice crystal size and to form a polymer-rich, ice-free layer around cells, reducing damage from intercellular ice crystals during both freezing and thawing steps. These polyampholytes also dehydrate cells during freezing, which helps protect cells from intracellular ice damage. While cell viability immediately after thawing was high, subsequent culturing revealed poor attachment and long-term viability, which is attributed to residual cell damage from intracellular ice formation. Addition of 2 wt % DMSO or 1% BSA to the polymer-based freeze medium was found to mitigate this damage and result in post-thaw viabilities matching those achieved with 10 wt % DMSO.
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Affiliation(s)
- J Zhao
- Department of Chemistry and Chemical Biology , McMaster University , Hamilton , Ontario L8S 4M1 , Canada
| | - M A Johnson
- Department of Chemistry and Chemical Biology , McMaster University , Hamilton , Ontario L8S 4M1 , Canada
| | - R Fisher
- Department of Chemistry and Chemical Biology , McMaster University , Hamilton , Ontario L8S 4M1 , Canada
| | - N A D Burke
- Department of Chemistry and Chemical Biology , McMaster University , Hamilton , Ontario L8S 4M1 , Canada
| | - H D H Stöver
- Department of Chemistry and Chemical Biology , McMaster University , Hamilton , Ontario L8S 4M1 , Canada
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15
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Kanta Sharker K, Ohara Y, Shigeta Y, Ozoe S, Yusa SI. Upper Critical Solution Temperature (UCST) Behavior of Polystyrene-Based Polyampholytes in Aqueous Solution. Polymers (Basel) 2019; 11:E265. [PMID: 30960249 PMCID: PMC6419060 DOI: 10.3390/polym11020265] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/22/2019] [Accepted: 02/02/2019] [Indexed: 02/03/2023] Open
Abstract
Strong polyampholytes comprising cationic vinylbenzyl trimethylammonium chloride (VBTAC) bearing a pendant quaternary ammonium group and anionic sodium p-styrenesulfonate (NaSS) bearing a pendant sulfonate group were prepared via reversible addition-fragmentation chain-transfer polymerization. The resultant polymers are labelled P(VBTAC/NaSS)n, where n indicates the degree of polymerization (n = 20 or 97). The percentage VBTAC content in P(VBTAC/NaSS)n is always about 50 mol%, as revealed by ¹H NMR measurements, meaning that P(VBTAC/NaSS)n is a close to stoichiometrically charge-neutralized polymer. Although P(VBTAC/NaSS)n cannot dissolve in pure water at room temperature, the addition of NaCl or heating solubilizes the polymers. Furthermore, P(VBTAC/NaSS)n exhibits upper critical solution temperature (UCST) behavior in aqueous NaCl solutions. The UCST is shifted to higher temperatures by increasing the polymer concentration and molecular weight, and by decreasing the NaCl concentration. The UCST behavior was measured ranging the polymer concentrations from 0.5 to 5.0 g/L.
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Affiliation(s)
- Komol Kanta Sharker
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
| | - Yuki Ohara
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
| | - Yusuke Shigeta
- Tosoh Finechem Co., 4988 Kaisei-cho, Shunan, Yamaguchi 746-0006, Japan.
| | - Shinji Ozoe
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
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16
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Saha B, Choudhury N, Bhadran A, Bauri K, De P. Amino acid-derived alternating polyampholyte luminogens. Polym Chem 2019. [DOI: 10.1039/c9py00462a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A unique polyampholyte luminogen comprised of alternatively placed oppositely charged moieties onto the poly(styrene-alt-maleimide) skeleton was synthesized, and used for the specific detection of carbon disulfide (CS2) in both solution and vapor phases.
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Affiliation(s)
- Biswajit Saha
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Nadia
- India
| | - Neha Choudhury
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Nadia
- India
| | - Abhi Bhadran
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Nadia
- India
| | - Kamal Bauri
- Department of Chemistry
- Raghunathpur College
- Purulia 723133
- India
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Nadia
- India
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17
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Tao Y, Wang S, Zhang X, Wang Z, Tao Y, Wang X. Synthesis and Properties of Alternating Polypeptoids and Polyampholytes as Protein-Resistant Polymers. Biomacromolecules 2018; 19:936-942. [PMID: 29438615 DOI: 10.1021/acs.biomac.7b01719] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Alternating polypeptoids are particularly appealing because alternating sequence may impart highly ordered structure and special functions, while their simple synthesis still remains a key challenge. We describe that natural amino acid monomers can be polymerized via Ugi reaction in a step-growth fashion as an AA' BB' system, which leads to alternating polypeptoids with molecular weight up to 15 kg/mol. These alternating polypeptoids are thermally responsive and exhibit cloud points ( Tcp) between 27 and 37 °C. Importantly, the marriage of high functionality of amino acids with Ugi reaction also enables the preparation of polypeptoids encoding both protected amino and carboxyl groups in the side chains with alternating arrangement. The cleavage of the protecting groups leads to alternating polyampholytes without any compositional drift. Such alternating polyampholytes not only exhibit high water solubility (>100 mg/mL) but also demonstrate the ability to resist aggregation with proteins. Moreover, the cell viability measurements reveal that these materials have minimal cytotoxicity to HeLa cells. Overall, this study offers us a simple way to prepare a variety of polypeptoids and polyampholytes as new protein-resistant materials for bioapplications.
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Affiliation(s)
- Yue Tao
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Shixue Wang
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China
| | - Xiaojie Zhang
- Department of Polymer Science and Engineering , Hebei University of Technology , Tianjin 300130 , P. R. China
| | | | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials and ⊥Laboratory of Polymer Composites Engineering , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 5625 Renmin Street , Changchun 130022 , P. R. China
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18
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Sun W, Wu P. A molecular level study of the phase transition process of hydrogen-bonding UCST polymers. Phys Chem Chem Phys 2018; 20:20849-20855. [DOI: 10.1039/c8cp04147d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A molecular level study of the UCST-type transition process of PNAGA-based polymers in water and a water/methanol mixture.
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Affiliation(s)
- Wenhui Sun
- The State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
| | - Peiyi Wu
- The State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Laboratory for Advanced Materials
- Fudan University
- Shanghai 200433
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19
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Rajan R, Matsumura K. Tunable Dual-Thermoresponsive Core-Shell Nanogels Exhibiting UCST and LCST Behavior. Macromol Rapid Commun 2017; 38. [PMID: 28960587 DOI: 10.1002/marc.201700478] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/18/2017] [Indexed: 11/10/2022]
Abstract
Thermoresponsive polymers change their physical properties as the temperature is changed and have found extensive use in a number of fields, especially in tissue engineering and in the development of drug delivery systems. The synthesis of a novel core-shell nanogel composed of N-isopropylacrylamide and sulfobetaine by reversible addition fragmentation chain transfer polymerization is reported. The core-shell architecture of the nanogels is confirmed using energy dispersive X-ray spectroscopy in scanning transmission electron microscopy. These nanogels exhibit dual thermoresponsive behavior, i.e., the core of the nanogel exhibits lower critical solution temperature, while the shell displays upper critical solution temperature behavior. Transition temperatures can be easily tuned by changing the molecular weight of the constituent polymer. These nanogels can be efficiently used in temperature-triggered delivery of therapeutic proteins and drugs.
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Affiliation(s)
- Robin Rajan
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Kazuaki Matsumura
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
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20
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Resetco C, Frank D, Kaya NU, Badi N, Du Prez F. Precisely Alternating Functionalized Polyampholytes Prepared in a Single Pot from Sustainable Thiolactone Building Blocks. ACS Macro Lett 2017; 6:277-280. [PMID: 35650902 DOI: 10.1021/acsmacrolett.7b00079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polyampholytes with precisely alternating cationic and anionic functional groups were prepared using sustainable thiolactone building blocks in a simple one-pot procedure at room temperature and in water. Ring opening of the N-maleamic acid-functionalized homocysteine thiolactone monomer enabled the introduction of different functional groups into the polymer chain, which contributed to both ionic and hydrogen bonding interactions. The resulting polyampholytes exhibited various isoelectric points while maintaining high solubility in water under different pH and ionic strengths, which expands their potential applications. Finally, it is shown that the upper critical solution temperature (UCST) of these alternating polyampholytes in water/ethanol (30/70% vol) solutions can be tuned as a function of the content of ionic and hydroxyl groups.
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Affiliation(s)
- Cristina Resetco
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
| | - Daniel Frank
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
| | - N. Ugur Kaya
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
- Polymer Science & Technology Department, Graduate School of Science Engineering & Technology, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
| | - Nezha Badi
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
- Institut Charles Sadron (CNRS UPR 22) - University of Strasbourg-ECPM, 23 rue du Loess, 67000 Strasbourg, France
| | - Filip Du Prez
- Department
of Organic and Macromolecular Chemistry, Polymer Chemistry Research
Group, Ghent University, Krijgslaan 281, S4-bis, B-9000 Ghent, Belgium
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21
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22
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Asadujjaman A, Kent B, Bertin A. Phase transition and aggregation behaviour of an UCST-type copolymer poly(acrylamide-co-acrylonitrile) in water: effect of acrylonitrile content, concentration in solution, copolymer chain length and presence of electrolyte. SOFT MATTER 2017; 13:658-669. [PMID: 27995248 DOI: 10.1039/c6sm02262f] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An UCST-type copolymer of acrylamide (AAm) and acrylonitrile (AN) (poly(AAm-co-AN)) was prepared by reversible addition fragmentation chain transfer (RAFT) polymerization and its temperature-induced phase transition and aggregation behaviour studied by turbidimetry, static and dynamic light scattering, small angle neutron scattering (SANS) and cryo-transmission electron microscopy (cryo-TEM) measurements. The phase transition temperature was found to increase with increasing AN content in the copolymer, concentration of the solutions and copolymer chain length. A significant effect was observed onto the phase transition temperature by addition of different electrolytes into the copolymer solution. The copolymer chains were aggregated below the phase transition temperature and disaggregated above it. The size of the aggregates increases with increasing AN contents and concentration of the copolymer solutions below the phase transition temperature. The copolymer chains were expanded and weekly associated in solution above the phase transition temperature. A model is proposed to explain such association-aggregation behaviour of poly(AAm-co-AN) copolymers depending on AN contents and concentration of the copolymer solutions as a function of temperature.
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Affiliation(s)
- Asad Asadujjaman
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Ben Kent
- Helmholtz-Zentrum Berlin (HZB), Hanhn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Annabelle Bertin
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany. and Freie Universität Berlin, Institute of Chemistry and Biochemistry-Organic Chemistry, Takustr. 3, 14195 Berlin, Germany
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23
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Billing M, Festag G, Bellstedt P, Schacher FH. Amphiphilic and double hydrophilic block copolymers containing a polydehydroalanine block. Polym Chem 2017. [DOI: 10.1039/c6py02076c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We present the synthesis and characterization of amphiphilic and double hydrophilic block copolymers containing a polydehydroalanine (PDha) block.
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Affiliation(s)
- Mark Billing
- Laboratory of Organic Chemistry and Macromolecular Chemistry
- Friedrich-Schiller-University Jena
- D-07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Grit Festag
- Laboratory of Organic Chemistry and Macromolecular Chemistry
- Friedrich-Schiller-University Jena
- D-07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Peter Bellstedt
- Laboratory of Organic Chemistry and Macromolecular Chemistry
- Friedrich-Schiller-University Jena
- D-07743 Jena
- Germany
| | - Felix H. Schacher
- Laboratory of Organic Chemistry and Macromolecular Chemistry
- Friedrich-Schiller-University Jena
- D-07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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24
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Abstract
In this mini-review, we discuss multi-stimuli-responsive polymers, which exhibit upper critical solution temperature (UCST) behavior mainly in aqueous solutions, and focus on examples where counter ions, electricity, light, or pH influence the thermoresponsiveness of these polymers.
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Affiliation(s)
- Jukka Niskanen
- Laboratory of Polymer Chemistry
- Department of Chemistry
- University of Helsinki
- 00014 Helsinki
- Finland
| | - Heikki Tenhu
- Laboratory of Polymer Chemistry
- Department of Chemistry
- University of Helsinki
- 00014 Helsinki
- Finland
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25
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Ghosh R, Das S, Chatterjee DP, Nandi AK. Surfactant-Triggered Fluorescence Turn "on/off" Behavior of a Polythiophene-graft-Polyampholyte. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8413-8423. [PMID: 27465928 DOI: 10.1021/acs.langmuir.6b01928] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polythiophene-graft-polyampholyte (PTP) is synthesized using N,N-dimethylaminoethyl methacrylate and tert-butyl methacrylate monomers by grafting from polythiophene backbone, followed by hydrolysis. The resulting polymer exhibits aqueous solubility via formation of small-sized miceller aggregates with hydrophobic polythiophene at the center and radiating polyionic side chains (cationic or anionic depending on the pH of the medium) at the outer periphery. The critical micelle concentration of PTP in acidic solution (0.025 mg/mL, pH = 2.7) is determined from fluorescence spectroscopy. PTP exhibits reversible fluorescence on and off response in both acidic and basic medium with the sequential addition of differently charged ionic surfactants, repeatedly. The fluorescence intensity of PTP at pH 2.7 increases with the addition of an anionic surfactant, sodium dodecyl benzenesulfonate (SDBS), due to the self-aggregation forming compound micelles. The fluorescence intensity of these solutions again decreases on addition of a cationic surfactant, cetyltrimethylammonium bromide (CTAB), because of assembling of SDBS with CTAB, thus deassembling the PTP-SDBS aggregates. At pH 9.2, these turn on and turn off responses are also shown by PTP with the sequential addition of cationic surfactant (CTAB) and anionic surfactant (SDBS), respectively. This result shows that PTP has potential for surfactant-induced reversible fluorescence turn on and off using ionic surfactant (SDBS and CTAB) through self-assembling and deassembling of the ionic aggregates. The reversible aggregation and disaggregation process of PTP with the surfactants at both acidic and basic pH is supported from dynamic light scattering and Fourier transform infrared spectroscopy. The morphology of the above systems studied by transmission and scanning electron microscopy also supports the above aggregation and disaggregation process.
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Affiliation(s)
- Radhakanta Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Sandip Das
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | | | - Arun K Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
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26
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Zhang Q, Voorhaar L, Filippov SK, Yeşil BF, Hoogenboom R. Tuning of Polymeric Nanoparticles by Coassembly of Thermoresponsive Polymers and a Double Hydrophilic Thermoresponsive Block Copolymer. J Phys Chem B 2016; 120:4635-43. [DOI: 10.1021/acs.jpcb.6b03414] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Qilu Zhang
- Supramolecular
Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Lenny Voorhaar
- Supramolecular
Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Sergey K. Filippov
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic CZ-162 06 Prague, Czech Republic
| | - Berin Fatma Yeşil
- Supramolecular
Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Richard Hoogenboom
- Supramolecular
Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
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27
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Constantinou AP, Elladiou M, Patrickios CS. Regular and Inverse Polyampholyte Hydrogels: A Detailed Comparison. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Marios Elladiou
- Department of Chemistry University of Cyprus P.O.
Box 20537 1678 Nicosia Cyprus
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28
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Yuan W, Chen X. Star-shaped and star-block polymers with a porphyrin core: from LCST–UCST thermoresponsive transition to tunable self-assembly behaviour and fluorescence performance. RSC Adv 2016. [DOI: 10.1039/c5ra21647h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The micelles self-assembled from star-shaped and star-block copolymers present a transition of LCST–UCST thermoresponsive properties through a facile quaternization reaction.
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Affiliation(s)
- Weizhong Yuan
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Materials of Ministry of Education
- Tongji University
- People's Republic of China
| | - Xiangnan Chen
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Materials of Ministry of Education
- Tongji University
- People's Republic of China
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29
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Bertrand O, Vlad A, Hoogenboom R, Gohy JF. Redox-controlled upper critical solution temperature behaviour of a nitroxide containing polymer in alcohol–water mixtures. Polym Chem 2016. [DOI: 10.1039/c5py01864a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Research on stimuli responsive polymers builds momentum as nature-inspired applications using man-made materials are increasingly sought.
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Affiliation(s)
- Olivier Bertrand
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université Catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Alexandru Vlad
- Institute of Condensed Matter and Nanoscience (IMCN)
- Molecules
- Solid and Reactivity (MOST)
- Université Catholique de Louvain
- 1348 Louvain-la-Neuve
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- Ghent University
- Ghent
- Belgium
| | - Jean-François Gohy
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université Catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
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30
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Zhao J, Burke NAD, Stöver HDH. Preparation and study of multi-responsive polyampholyte copolymers of N-(3-aminopropyl)methacrylamide hydrochloride and acrylic acid. RSC Adv 2016. [DOI: 10.1039/c6ra06516c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multi-responsive polyampholytes show LCST and UCST behaviour at different pH values, based on electrostatic and hydrogen bonding interactions.
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Affiliation(s)
- Jing Zhao
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada
| | | | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology
- McMaster University
- Hamilton
- Canada
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31
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Zhang Y, Chen S, Pang M, Zhang W. Synthesis and micellization of a multi-stimuli responsive block copolymer based on spiropyran. Polym Chem 2016. [DOI: 10.1039/c6py01599a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A pH-, light-, LCST- and UCST-responsive block copolymer based on spiropyran is synthesized and the modulated micellization is demonstrated.
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Affiliation(s)
- Yuan Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Shengli Chen
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Meili Pang
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
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32
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Zhang Q, Hoogenboom R. Polymers with upper critical solution temperature behavior in alcohol/water solvent mixtures. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.02.003] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Can A, Zhang Q, Rudolph T, Schacher FH, Gohy JF, Schubert US, Hoogenboom R. Schizophrenic thermoresponsive block copolymer micelles based on LCST and UCST behavior in ethanol–water mixtures. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.04.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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