1
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Plank M, Frieß FV, Bitsch CV, Pieschel J, Reitenbach J, Gallei M. Modular Synthesis of Functional Block Copolymers by Thiol–Maleimide “Click” Chemistry for Porous Membrane Formation. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Martina Plank
- Ernst-Berl Institute of Technical and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany
| | - Florian Volker Frieß
- Chair in Polymer Chemistry, Universität des Saarlandes, Campus Saarbrücken, 66123 Saarbrücken, Germany
| | - Carina Vera Bitsch
- Ernst-Berl Institute of Technical and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany
| | - Jens Pieschel
- Chair in Polymer Chemistry, Universität des Saarlandes, Campus Saarbrücken, 66123 Saarbrücken, Germany
| | - Julija Reitenbach
- Ernst-Berl Institute of Technical and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany
| | - Markus Gallei
- Chair in Polymer Chemistry, Universität des Saarlandes, Campus Saarbrücken, 66123 Saarbrücken, Germany
- Saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123 Saarbrücken, Germany
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2
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Sung YC, Huang PS, Huang SH, Chiang YW, Tsai JC. Syndiotactic Poly(4-methyl-1-pentene)-Based Stereoregular Diblock Copolymers: Synthesis and Self-Assembly Studies. Polymers (Basel) 2022; 14:polym14224815. [PMID: 36432942 PMCID: PMC9694553 DOI: 10.3390/polym14224815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/05/2022] [Accepted: 11/05/2022] [Indexed: 11/12/2022] Open
Abstract
Syndiotactic poly(4-methyl-1-pentene) (sP4M1P)-based stereoregular diblock copolymers, namely sP4M1P-b-polystyrene and sP4M1P-b-polymethylmethacrylate, were prepared from an α-bromoester-capped sP4M1P macroinitiator, which was chain extended with styrene and methyl methacrylate, respectively, via the atom transfer radical polymerization reaction. The α-bromoester-capped sP4M1P was generated by the esterification of hydroxyl-capped sP4M1P with α-bromoisobutyryl bromide. The hydroxyl-capped sP4M1P was synthesized by inducing a selective chain transfer reaction to aluminum during the syndiospecific polymerization of 4-methyl-1-pentene in the presence of a syndiospecific metallocene catalyst. As stereoregular diblock copolymers are difficult to prepare using existing methods, the current study offers an effective process for the preparation of sP4M1P-based stereoregular diblock copolymers. These copolymers were found to have well-defined architectures and they can undergo molecular self-assembly into ordered nanostructures, as evidenced by small-angle X-ray scattering analyses.
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Affiliation(s)
- Yu-Chuan Sung
- Department of Chemical Engineering, National Chung Cheng University, Chiayi 62142, Taiwan
| | - Pei-Sun Huang
- Department of Chemical Engineering, National Chung Cheng University, Chiayi 62142, Taiwan
| | - Shih-Hung Huang
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Yeo-Wan Chiang
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Correspondence: (Y.-W.C.); (J.-C.T.)
| | - Jing-Cherng Tsai
- Department of Chemical Engineering, National Chung Cheng University, Chiayi 62142, Taiwan
- Correspondence: (Y.-W.C.); (J.-C.T.)
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3
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Adegoke O, Daeid NN. Alloyed AuFeZnSe quantum dots@gold nanorod nanocomposite as an ultrasensitive and selective plasmon-amplified fluorescence OFF-ON aptasensor for arsenic (III). J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113755] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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4
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Mechanically strong, anti-fouling and pH-resistant isoporous membranes prepared from chemically designed new block copolymers. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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5
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Zhang Z, Rahman MM, Bajer B, Scharnagl N, Abetz V. Highly selective isoporous block copolymer membranes with tunable polyelectrolyte brushes in soft nanochannels. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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6
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Frieß FV, Hu Q, Mayer J, Gemmer L, Presser V, Balzer BN, Gallei M. Nanoporous Block Copolymer Membranes with Enhanced Solvent Resistance Via UV-Mediated Cross-Linking Strategies. Macromol Rapid Commun 2021; 43:e2100632. [PMID: 34752668 DOI: 10.1002/marc.202100632] [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: 09/21/2021] [Revised: 10/22/2021] [Indexed: 01/25/2023]
Abstract
In this work, a block copolymer (BCP) consisting of poly((butyl methacrylate-co-benzophenone methacrylate-co-methyl methacrylate)-block-(2-hydroxyethyl methacrylate)) (P(BMA-co-BPMA-co-MMA)-b-P(HEMA)) is prepared by a two-step atom-transfer radical polymerization (ATRP) procedure. BCP membranes are fabricated applying the self-assembly and nonsolvent induced phase separation (SNIPS) process from a ternary solvent mixture of tetrahydrofuran (THF), 1,4-dioxane, and dimethylformamide (DMF). The presence of a porous top layer of the integral asymmetric membrane featuring pores of about 30 nm is confirmed via scanning electron microscopy (SEM). UV-mediated cross-linking protocols for the nanoporous membrane are adjusted to maintain the open and isoporous top layer. The swelling capability of the noncross-linked and cross-linked BCP membranes is investigated in water, water/ethanol mixture (1:1), and pure ethanol using atomic force microscopy, proving a stabilizing effect of the UV cross-linking on the porous structures. Finally, the influence of the herein described cross-linking protocols on water-flux measurements for the obtained membranes is explored. As a result, an increased swelling resistance for all tested solvents is found, leading to an increased water flux compared to the pristine membrane. The herein established UV-mediated cross-linking protocol is expected to pave the way to a new generation of porous and stabilized membranes within the fields of separation technologies.
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Affiliation(s)
- Florian V Frieß
- Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123, Saarbrücken, Germany
| | - Qiwei Hu
- Institute of Physical Chemistry, University of Freiburg, Albertstraße 21, 79104, Freiburg, Germany.,Cluster of Excellence livMatS @ FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany
| | - Jannik Mayer
- Ernst-Berl-Institute of Chemical Engineering and Macromolecular Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, 64287, Darmstadt, Germany
| | - Lea Gemmer
- Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123, Saarbrücken, Germany
| | - Volker Presser
- Saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123, Saarbrücken, Germany.,Department of Materials Science and Engineering, Saarland University, Campus D2 2, 66123, Saarbrücken, Germany.,INM - Leibniz-Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Bizan N Balzer
- Institute of Physical Chemistry, University of Freiburg, Albertstraße 21, 79104, Freiburg, Germany.,Cluster of Excellence livMatS @ FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany
| | - Markus Gallei
- Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123, Saarbrücken, Germany
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7
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Adegoke O, Daeid NN. Polymeric-coated Fe-doped ceria/gold hybrid nanocomposite as an aptasensor for the catalytic enhanced colorimetric detection of 2,4-dinitrophenol. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127194] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Qian X, Ravindran T, Lounder SJ, Asatekin A, McCutcheon JR. Printing zwitterionic self-assembled thin film composite membranes: Tuning thickness leads to remarkable permeability for nanofiltration. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119428] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Rahman MM. Selective Swelling and Functionalization of Integral Asymmetric Isoporous Block Copolymer Membranes. Macromol Rapid Commun 2021; 42:e2100235. [PMID: 34057263 DOI: 10.1002/marc.202100235] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/07/2021] [Indexed: 11/12/2022]
Abstract
SNIPS stands for a membrane fabrication technique that combines the evaporation induced self-assembly of the block copolymers and the classical nonsolvent induced phase separation. It is a one-step readily scalable technique to fabricate integral asymmetric isoporous membranes. The prominent developments in the last decade have carved out a niche for SNIPS as a potential technique to fabricate next generation isoporous membranes. In the last decade, a rich polymer library and variety of membrane postmodification routes have been successfully implemented to fabricate SNIPS membranes having the desired pore functionality. Some of these membranes form soft nanochannels in hydrated state due to swelling of the pore wall, i.e., the pore forming block of the block copolymer. These membranes having soft nanochannels have demonstrated the potential to perform several challenging separation tasks in ultrafiltration and nanofiltration. This paper highlights the currently accessible pore functionality, the strategies to tune the swelling of the soft nanochannels, the potential applications, and future perspectives of these membranes.
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Affiliation(s)
- Md Mushfequr Rahman
- Helmholtz-Zentrum Hereon, Institute of Membrane Research, Max-Planck-Straße 1, Geesthacht, 21502, Germany
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10
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Wang J, Rahman MM, Abetz C, Abetz V. Tuning the size selectivity of isoporous membranes for protein fractionation via two scalable post treatment approaches. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Scheibel DM, Guo D, Luo J, Gitsov I. A Single Enzyme Mediates the "Quasi-Living" Formation of Multiblock Copolymers with a Broad Biomedical Potential. Biomacromolecules 2020; 21:2132-2146. [PMID: 32233461 DOI: 10.1021/acs.biomac.0c00126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
This study describes a unique "quasi-living" block copolymerization method based on an initiation by a single enzyme. We use this term to describe a process where a preformed polymer chain can be reactivated to continue propagating with a second or third comonomer without addition of new catalyst. The presented strategy involves a laccase (oxidoreductase) mediated initial polymerization of 4-hydroxyphenylacetic acid to a homopolymer containing phenolic terminal units, which in turn can be easily reactivated by the same enzyme in the same reaction vessel to continue propagation with a second monomer (tyramine). Increased copolymer yield (up to 26.0%) and polymer molecular mass (up to Mw = 116 000 Da) are achieved through the addition of previously developed micellar and hydrogel enzyme complexing agents. The produced poly(tyramine)-b-poly(4-hydroxyphenylacetic acid)-b-poly(tyramine) is water-soluble and able to self-assemble in aqueous solution. Both tyramine blocks were successfully modified with ibuprofen moieties (up to 24.6% w/w load) as an example for potential polymer drug conjugation. The copolymerization could be further extended with addition of a third (fluorescent) comonomer in the same reaction vessel to yield a fluorescent pentablock copolymer. The successful modifications and advantageous solution behavior of the produced copolymers demonstrate their viability as versatile drug delivery and/or bioimaging agents, as confirmed by cytotoxicity and cellular uptake studies.
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Affiliation(s)
- Dieter Michael Scheibel
- Department of Chemistry, State University of New York - ESF, Syracuse, New York 13210, United States
| | - Dandan Guo
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Juntao Luo
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, New York 13210, United States
| | - Ivan Gitsov
- Department of Chemistry, State University of New York - ESF, Syracuse, New York 13210, United States.,The Michael M. Szwarc Polymer Research Institute, Syracuse, New York 13210, United States
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12
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Wang J, Rahman MM, Abetz C, Abetz V. Bovine serum albumin selective integral asymmetric isoporous membrane. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118074] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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14
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Saleem S, Rangou S, Abetz C, Filiz V, Abetz V. Isoporous Membranes from Novel Polystyrene- b-poly(4-vinylpyridine)- b-poly(solketal methacrylate) (PS- b-P4VP- b-PSMA) Triblock Terpolymers and Their Post-Modification. Polymers (Basel) 2019; 12:E41. [PMID: 31888039 PMCID: PMC7023574 DOI: 10.3390/polym12010041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 11/22/2022] Open
Abstract
In this paper, the formation of nanostructured triblock terpolymer polystyrene-b-poly(4-vinylpyridine)-b-poly(solketal methacrylate) (PS-b-P4VP-b-PSMA), polystyrene-b-poly(4-vinylpyridine)-b-poly(glyceryl methacrylate) (PS-b-P4VP-b-PGMA) membranes via block copolymer self-assembly followed by non-solvent-induced phase separation (SNIPS) is demonstrated. An increase in the hydrophilicity was observed after treatment of non-charged isoporous membranes from PS-b-P4VP-b-PSMA, through acidic hydrolysis of the hydrophobic poly(solketal methacrylate) PSMA block into a hydrophilic poly(glyceryl methacrylate) PGMA block, which contains two neighbored hydroxyl (-OH) groups per repeating unit. For the first time, PS-b-P4VP-b-PSMA triblock terpolymers with varying compositions were successfully synthesized by sequential living anionic polymerization. Composite membranes of PS-b-P4VP-b-PSMA and PS-b-P4VP-b-PGMA triblock terpolymers with ordered hexagonally packed cylindrical pores were developed. The morphology of the membranes was studied with scanning electron microscopy (SEM) and atomic force microscopy (AFM). PS-b-P4VP-b-PSMA triblock terpolymer membranes were further treated with acid (1 M HCl) to get polystyrene-b-poly(4-vinylpyridine)-b-poly(glyceryl methacrylate) (PS-b-P4VP-b-PGMA). Notably, the pristine porous membrane structure could be maintained even after acidic hydrolysis. It was found that membranes containing hydroxyl groups (PS-b-P4VP-b-PGMA) show a stable and higher water permeance than membranes without hydroxyl groups (PS-b-P4VP-b-PSMA), what is due to the increase in hydrophilicity. The membrane properties were analyzed further by contact angle, protein retention, and adsorption measurements.
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Affiliation(s)
- Sarah Saleem
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Sofia Rangou
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Clarissa Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Volkan Filiz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Volker Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
- Institute of Physical Chemistry, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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15
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Aissou K, Mumtaz M, Demazy N, Pécastaings G, Fleury G, Hadziioannou G. Periodic Bicontinuous Structures Formed on the Top Surface of Asymmetric Triblock Terpolymer Thick Films. ACS Macro Lett 2019; 8:923-930. [PMID: 35619498 DOI: 10.1021/acsmacrolett.9b00403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The combination of the nonsolvent-induced phase separation (NIPS) process with a solvent vapor annealing (SVA) treatment is used to produce asymmetric and hydrophobic thick films having different long-range ordered network nanostructures, which are inaccessible via currently available membrane fabrication methods. We show that the disordered phase generated by NIPS on the material top surface can be transformed into a highly ordered bicontinuous network nanostructure during the SVA process without disrupting the substructure morphology. For instance, by using a straightforward blending approach, either a triply periodic alternating diamond (DA) structure or a core-shell perforated lamellar (PL) phase was demonstrated on the skin layer of fully hydrophobic poly(1,1-dimethyl silacyclobutane)-block-polystyrene-block-poly(methyl methacrylate) (PDMSB-b-PS-b-PMMA) thick films. Such a material fabrication method, enabling the formation of a sponge-like substructure topped by a network phase having an excellent long-range order, provides an appealing strategy to facilitate the manufacture of next-generation membranes at large scale since these bicontinuous morphologies obviate the need of the nanochannel alignment.
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Affiliation(s)
- Karim Aissou
- Institut Européen des Membranes, Université de Montpellier - CNRS - ENSCM, 300 Avenue du Professeur Emile Jeanbrau, F-34090 Montpellier, France
| | - Muhammad Mumtaz
- Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Nils Demazy
- Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Gilles Pécastaings
- Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Guillaume Fleury
- Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
| | - Georges Hadziioannou
- Laboratoire de Chimie des Polymères Organiques, Université Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France
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16
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Schöttner S, Brodrecht M, Uhlein E, Dietz C, Breitzke H, Tietze AA, Buntkowsky G, Gallei M. Amine-Containing Block Copolymers for the Bottom-Up Preparation of Functional Porous Membranes. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02758] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Martin Brodrecht
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, D-64287 Darmstadt, Germany
| | | | - Christian Dietz
- Institute of Materials Science, Physics of Surfaces, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, D-64287 Darmstadt, Germany
| | - Hergen Breitzke
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, D-64287 Darmstadt, Germany
| | - Alesia A. Tietze
- Department of Chemistry and Molecular Biology, Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Kemigården 4, 412 96 Gothenburg, Sweden
| | - Gerd Buntkowsky
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, D-64287 Darmstadt, Germany
| | - Markus Gallei
- Organic Macromolecular Chemistry, Saarland University, Campus Saarbrücken C4.2, D-66123 Saarbrücken, Germany
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17
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Zhang Z, Rahman MM, Abetz C, Bajer B, Wang J, Abetz V. Quaternization of a Polystyrene‐
block
‐poly(4‐vinylpyridine) Isoporous Membrane: An Approach to Tune the Pore Size and the Charge Density. Macromol Rapid Commun 2018; 40:e1800729. [DOI: 10.1002/marc.201800729] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/30/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Zhenzhen Zhang
- Institute of Polymer ResearchHelmholtz‐Zentrum Geesthacht Max‐Planck‐Str. 1 21502 Geesthacht Germany
| | - Md. Mushfequr Rahman
- Institute of Polymer ResearchHelmholtz‐Zentrum Geesthacht Max‐Planck‐Str. 1 21502 Geesthacht Germany
| | - Clarissa Abetz
- Institute of Polymer ResearchHelmholtz‐Zentrum Geesthacht Max‐Planck‐Str. 1 21502 Geesthacht Germany
| | - Barbara Bajer
- Institute of Polymer ResearchHelmholtz‐Zentrum Geesthacht Max‐Planck‐Str. 1 21502 Geesthacht Germany
| | - Jiali Wang
- Institute of Polymer ResearchHelmholtz‐Zentrum Geesthacht Max‐Planck‐Str. 1 21502 Geesthacht Germany
| | - Volker Abetz
- Institute of Polymer ResearchHelmholtz‐Zentrum Geesthacht Max‐Planck‐Str. 1 21502 Geesthacht Germany
- Institute of Physical ChemistryUniversity of Hamburg Martin‐Luther‐King‐Platz 6 20146 Hamburg Germany
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18
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Bucher T, Filiz V, Abetz C, Abetz V. Formation of Thin, Isoporous Block Copolymer Membranes by an Upscalable Profile Roller Coating Process-A Promising Way to Save Block Copolymer. MEMBRANES 2018; 8:E57. [PMID: 30082598 PMCID: PMC6161133 DOI: 10.3390/membranes8030057] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/25/2018] [Accepted: 07/30/2018] [Indexed: 11/17/2022]
Abstract
In this work we present a method to manufacture flat sheet membranes with a thin isoporous block copolymer (BCP) layer (thickness <3 µm) by profile roller coating (breadth: 30 cm) on top of a porous support membrane. Highly diluted BCP-solutions were used for this coating process. While we cast membranes with dimensions of 30 cm × 50 cm in this work, the procedure can easily be extended to endless dimensions in this roll to roll (R2R) process. The method offers the possibility to save >95% of BCP raw material compared to common doctor blade casting, by strongly decreasing the layer thickness to below 3 µm in combination with a highly open substructure. Additionally, we report a straightforward method to investigate the influence of the solvent evaporation time between coating and precipitation (phase inversion) on the membrane morphology using one sample only, which also ensures that all other influencing parameters remain constant.
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Affiliation(s)
- Thomas Bucher
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany.
| | - Volkan Filiz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany.
| | - Clarissa Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany.
| | - Volker Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany.
- Institute of Physical Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany.
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19
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Wang J, Rahman MM, Abetz C, Rangou S, Zhang Z, Abetz V. Novel Post-Treatment Approaches to Tailor the Pore Size of PS-b
-PHEMA Isoporous Membranes. Macromol Rapid Commun 2018; 39:e1800435. [DOI: 10.1002/marc.201800435] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/08/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Jiali Wang
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Md. Mushfequr Rahman
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Clarissa Abetz
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Sofia Rangou
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Zhenzhen Zhang
- Helmholtz-Zentrum Geesthacht; Institute of Polymer Research; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Volker Abetz
- Institute of Physical Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
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