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Henschel C, Schanzenbach D, Laschewsky A, Ko CH, Papadakis CM, Müller-Buschbaum P. Thermoresponsive and co-nonsolvency behavior of poly(N-vinyl isobutyramide) and poly(N-isopropyl methacrylamide) as poly(N-isopropyl acrylamide) analogs in aqueous media. Colloid Polym Sci 2023. [DOI: 10.1007/s00396-023-05083-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Sets of the nonionic polymers poly(N-vinyl isobutyramide) (pNVIBAm) and poly(N-isopropyl methacrylamide) (pNIPMAm) are synthesized by radical polymerization covering the molar mass range from about 20,000 to 150,000 kg mol−1, and their thermoresponsive and solvent-responsive behaviors in aqueous solution are studied. Both polymers feature a lower critical solution temperature (LCST) apparently of the rare so-called type II, as characteristic for their well-studied analogue poly(N-isopropyl acrylamide) (pNIPAm). Moreover, in analogy to pNIPAm, both polymers exhibit co-nonsolvency behavior in mixtures of water with several co-solvents, including short-chain alcohols as well as a range of polar aprotic solvents. While the cloud points of the aqueous solutions are a few degrees higher than those for pNIPAm and increase in the order pNIPAm < pNVIBAm < pNIPMAm, the co-nonsolvency behavior becomes less pronounced in the order pNIPAm > pNVIBAm > pNIPMAm. Exceptionally, pNIPMAm does not show co-nonsolvency in mixtures of water and N,N-dimethylformamide.
Graphical Abstract
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2
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Di Leone S, Vallapurackal J, Yorulmaz Avsar S, Kyropolou M, Ward TR, Palivan CG, Meier W. Expanding the Potential of the Solvent-Assisted Method to Create Bio-Interfaces from Amphiphilic Block Copolymers. Biomacromolecules 2021; 22:3005-3016. [PMID: 34105950 DOI: 10.1021/acs.biomac.1c00424] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Artificial membranes, as materials with biomimetic properties, can be applied in various fields, such as drug screening or bio-sensing. The solvent-assisted method (SA) represents a straightforward method to prepare lipid solid-supported membranes. It overcomes the main limitations of established membrane preparation methods, such as Langmuir-Blodgett (LB) or vesicle fusion. However, it has not yet been applied to create artificial membranes based on amphiphilic block copolymers, despite their enhanced mechanical stability compared to lipid-based membranes and bio-compatible properties. Here, we applied the SA method on different amphiphilic di- and triblock poly(dimethylsiloxane)-block-poly(2-methyl-2-oxazoline) (PDMS-b-PMOXA) copolymers and optimized the conditions to prepare artificial membranes on a solid support. The real-time membrane formation, the morphology, and the mechanical properties have been evaluated by a combination of atomic force microscopy and quartz crystal microbalance. Then, selected biomolecules including complementary DNA strands and an artificial deallylase metalloenzyme (ADAse) were incorporated into these membranes relying on the biotin-streptavidin technology. DNA strands served to establish the capability of these synthetic membranes to interact with biomolecules by preserving their correct conformation. The catalytic activity of the ADAse following its membrane anchoring induced the functionality of the biomimetic platform. Polymer membranes on solid support as prepared by the SA method open new opportunities for the creation of artificial membranes with tailored biomimetic properties and functionality.
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Affiliation(s)
- Stefano Di Leone
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland.,School of Life Sciences, Institute for Chemistry and Bioanalytics, University of Applied Sciences Northwestern Switzerland (FHNW), Grundenstrasse 40, 4132 Muttenz, Switzerland
| | - Jaicy Vallapurackal
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Saziye Yorulmaz Avsar
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Myrto Kyropolou
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Thomas R Ward
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Cornelia G Palivan
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Wolfgang Meier
- Chemistry Department, University of Basel, BPR 1096, Mattenstrasse 24a, 4058 Basel, Switzerland
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3
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Su R, Li S, Wu W, Song C, Liu G, Yu Y. Recent progress in electrospun nanofibrous membranes for oil/water separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117790] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Philipps K, Junkers T, Michels JJ. The block copolymer shuffle in size exclusion chromatography: the intrinsic problem with using elugrams to determine chain extension success. Polym Chem 2021. [DOI: 10.1039/d1py00210d] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Is an increase in hydrodynamic volume always expected in block copolymer synthesis? Why SEC is sometimes not the last word.
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Affiliation(s)
- Kai Philipps
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Tanja Junkers
- Polymer Reaction Design Group
- School of Chemistry
- Monash University
- Clayton
- Australia
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Ko CH, Henschel C, Meledam GP, Schroer MA, Müller-Buschbaum P, Laschewsky A, Papadakis CM. Self-Assembled Micelles from Thermoresponsive Poly(methyl methacrylate)-b-poly(N-isopropylacrylamide) Diblock Copolymers in Aqueous Solution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02189] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chia-Hsin Ko
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Cristiane Henschel
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
| | - Geethu P. Meledam
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Martin A. Schroer
- European Molecular Biology Laboratory, Hamburg Outstation, c/o Deutsches Elektronen-Synchrotron, Notkestr. 85, 22607 Hamburg, Germany
| | - Peter Müller-Buschbaum
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - André Laschewsky
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
- Fraunhofer-Institut für Angewandte Polymerforschung, Geiselbergstraße 69, 14476 Potsdam-Golm, Germany
| | - Christine M. Papadakis
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
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Tang B, Shao W, Groenewold J, Li H, Feng Y, Xu X, Shui L, Barman J, Zhou G. Transition of interfacial capacitors in electrowetting on a graphite surface by ion intercalation. Phys Chem Chem Phys 2019; 21:26284-26291. [PMID: 31602437 DOI: 10.1039/c9cp04436a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The low voltage electrowetting response of a LiCl aqueous solution on a freshly cleaved surface of highly oriented pyrolytic graphite (HOPG) is presented. For applied voltages below 1 V, the energy stored in the electrical double layer (EDL) is insufficient to drive the spreading of the drop due to the pinning of the three phase contact line at the step edges. Electrochemical impedance spectroscopy shows a dramatic increase in capacitance above 1 V, which provides a sufficient electrowetting force for depinning the contact line, resulting in a subsequent decrease of the contact angle. The transition of the interfacial capacitance from the EDL to the many-fold high capacitance of the pseudocapacitor drives the electrowetting transition on the HOPG surface. The observed changes in the capacitances above 1 V are correlated with the cyclic voltammetry and atomic force microscopy results, which show that the Cl- ions intercalate into the graphite galleries upon acquiring sufficient energy to overcome the van der Waals attraction between the graphene layers through the side of the step edge of the basal planes. To the best of our knowledge, this is the first study on the voltage dependent intercalation mediated transition of interfacial capacitance driving the spreading of an aqueous electrolyte drop on the HOPG surface, which provides a fundamental understanding of the mechanism and opens up potential applications in microfluidics and charge storage technologies.
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Affiliation(s)
- Biao Tang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China.
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Li JJ, Zhou YN, Luo ZH. Polymeric materials with switchable superwettability for controllable oil/water separation: A comprehensive review. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.06.009] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ge M, Cao C, Huang J, Zhang X, Tang Y, Zhou X, Zhang K, Chen Z, Lai Y. Rational design of materials interface at nanoscale towards intelligent oil-water separation. NANOSCALE HORIZONS 2018; 3:235-260. [PMID: 32254075 DOI: 10.1039/c7nh00185a] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oil-water separation is critical for the water treatment of oily wastewater or oil-spill accidents. The oil contamination in water not only induces severe water pollution but also threatens human beings' health and all living species in the ecological system. To address this challenge, different nanoscale fabrication methods have been applied for endowing biomimetic porous materials, which provide a promising solution for oily-water remediation. In this review, we present the state-of-the-art developments in the rational design of materials interface with special wettability for the intelligent separation of immiscible/emulsified oil-water mixtures. A mechanistic understanding of oil-water separation is firstly described, followed by a summary of separation solutions for traditional oil-water mixtures and special oil-water emulsions enabled by self-amplified wettability due to nanostructures. Guided by the basic theory, the rational design of interfaces of various porous materials at nanoscale with special wettability towards superhydrophobicity-superoleophilicity, superhydrophilicity-superoleophobicity, and superhydrophilicity-underwater superoleophobicity is discussed in detail. Although the above nanoscale fabrication strategies are able to address most of the current challenges, intelligent superwetting materials developed to meet special oil-water separation demands and to further promote the separation efficiency are also reviewed for various special application demands. Finally, challenges and future perspectives in the development of more efficient oil-water separation materials and devices by nanoscale control are provided. It is expected that the biomimetic porous materials with nanoscale interface engineering will overcome the current challenges of oil-water emulsion separation, realizing their practical applications in the near future with continuous efforts in this field.
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Affiliation(s)
- Mingzheng Ge
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
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Lei Z, Zhang G, Deng Y, Wang C. Thermoresponsive Melamine Sponges with Switchable Wettability by Interface-Initiated Atom Transfer Radical Polymerization for Oil/Water Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:8967-8974. [PMID: 28229584 DOI: 10.1021/acsami.6b14565] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Here we have obtained a temperature responsive melamine sponge with a controllable wettability between superhydrophilicity and superhydrophobicity by grafting the octadecyltrichlorosilane and thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) onto the surface of melamine sponge skeletons. The whole process included the silanization in which step the rough surface with low surface energy and the NH2 were provided, and the atom transfer radical polymerization which ensured the successful grafting of PNIPAAm onto the skeleton's surface. The product exhibits a good reversible switch between superhydrophilicity and superhydrophobicity by changing the temperature below or above the lower critical solution temperature (LCST, about 32 °C) of PNIPAAm, and the modified sponge still retains a good responsiveness after undergoing two temperature switches for 20 cycles. Simultaneously, the functionalized sponges could be used to absorb the oil under water at 37 °C, and they released the absorbed oil in various ways under water at 20 °C, showing wide potential applications including oil/water separation.
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Affiliation(s)
- Zhiwen Lei
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, China
| | - Guangzhao Zhang
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, China
| | - Yonghong Deng
- Department of Materials Science and Engineering, South University of Science and Technology of China , Shenzhen 518055, China
| | - Chaoyang Wang
- Research Institute of Materials Science, South China University of Technology , Guangzhou 510640, China
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10
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A fast and effective approach for reversible wetting-dewetting transitions on ZnO nanowires. Sci Rep 2016; 6:35073. [PMID: 27713536 PMCID: PMC5054356 DOI: 10.1038/srep35073] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 09/23/2016] [Indexed: 01/05/2023] Open
Abstract
Here, we demonstrate a facile approach for the preparation of ZnO nanowires (NWs) with tunable surface wettability that can be manipulated reversibly in a controlled manner from a superhydrophilic state to a superhydrophobic state. The as-synthesized ZnO NWs obtained by a chemical vapor deposition method are superhydrophilic with a contact angle (CA) value of ~0°. After H2 gas annealing at 300 °C for 90 minutes, ZnO NWs display superhydrophobic behavior with a roll-off angle less than 5°. However, O2 gas annealing converts these superhydrophobic ZnO NWs into a superhydrophilic state. For switching from superhydrophobic to superhydrophilic state and vice versa in cyclic manner, H2 and O2 gas annealing treatment was used, respectively. A model based on density functional theory indicates that the oxygen-related defects are responsible for CA switching. The water resistant properties of the ZnO NWs coating is found to be durable and can be applied to a variety of substrates including glass, metals, semiconductors, paper and even flexible polymers.
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11
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Chen ZC, Zhu BC, Li JJ, Zhou YN, Luo ZH. Dual-responsive copolymer poly(2,2,3,4,4,4-hexafluorobutyl methacrylate)-block-poly[2-(dimethylamino)ethyl methacrylate] synthesized via photoATRP for surface with tunable wettability. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28357] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhi-Chao Chen
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 People's Republic of China
| | - Bo-Chao Zhu
- Lanzhou Petrochemical Research Center; PetroChina Petrochemical Research Institute; Lanzhou 730060 People's Republic of China
| | - Jin-Jin Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 People's Republic of China
| | - Yin-Ning Zhou
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 People's Republic of China
| | - Zheng-Hong Luo
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 People's Republic of China
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12
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Zhou YN, Li JJ, Luo ZH. Toward efficient water/oil separation material: Effect of copolymer composition on pH-responsive wettability and separation performance. AIChE J 2016. [DOI: 10.1002/aic.15145] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yin-Ning Zhou
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 P.R. China
| | - Jin-Jin Li
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 P.R. China
| | - Zheng-Hong Luo
- Dept. of Chemical Engineering, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 P.R. China
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13
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Guo F, Guo Z. Inspired smart materials with external stimuli responsive wettability: a review. RSC Adv 2016. [DOI: 10.1039/c6ra04079a] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Recent progress in smart surfaces with responsive wettability upon external stimuli is reviewed and some of the barriers and potentially promising breakthroughs in this field are also briefly discussed.
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Affiliation(s)
- Fei Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
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14
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Zhou YN, Li JJ, Luo ZH. PhotoATRP-Based Fluorinated Thermosensitive Block Copolymer for Controllable Water/Oil Separation. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02394] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yin-Ning Zhou
- Department of Chemical Engineering,
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jin-Jin Li
- Department of Chemical Engineering,
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zheng-Hong Luo
- Department of Chemical Engineering,
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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15
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Anastasaki A, Nikolaou V, Nurumbetov G, Wilson P, Kempe K, Quinn JF, Davis TP, Whittaker MR, Haddleton DM. Cu(0)-Mediated Living Radical Polymerization: A Versatile Tool for Materials Synthesis. Chem Rev 2015; 116:835-77. [DOI: 10.1021/acs.chemrev.5b00191] [Citation(s) in RCA: 339] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Athina Anastasaki
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Vasiliki Nikolaou
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
| | - Gabit Nurumbetov
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
| | - Paul Wilson
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Kristian Kempe
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - John F. Quinn
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Thomas P. Davis
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Michael R. Whittaker
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - David M. Haddleton
- Chemistry
Department, University of Warwick, Library Road, CV4 7AL, Coventry, United Kingdom
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
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