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Burmeister N, Vollstedt C, Kröger C, Friedrich T, Scharnagl N, Rohnke M, Zorn E, Wicha SG, Streit WR, Maison W. Zwitterionic surface modification of polyethylene via atmospheric plasma-induced polymerization of (vinylbenzyl-)sulfobetaine and evaluation of antifouling properties. Colloids Surf B Biointerfaces 2023; 224:113195. [PMID: 36758459 DOI: 10.1016/j.colsurfb.2023.113195] [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: 11/18/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/05/2023]
Abstract
Zwitterionic polymer brushes were grafted from bulk polyethylene (PE) by air plasma activation of the PE surface followed by radical polymerization of the zwitterionic styrene derivative (vinylbenzyl)sulfobetaine (VBSB). Successful formation of dense poly-(VBSB)-brush layers was confirmed by goniometry, IR spectroscopy, XPS and ToF-SIMS analysis. The resulting zwitterionic layers are about 50-100 nm thick and cause extremely low contact angles of 10° (water) on the material. Correspondingly we determined a high density of > 1.0 × 1016 solvent accessible zwitterions/cm2 (corresponding to 2,0 *10-8 mol/cm2) by a UV-based ion-exchange assay with crystal violet. The elemental composition as determined by XPS and characteristic absorption bands in the IR spectra confirmed the presence of zwitterionic sulfobetaine polymer brushes. The antifouling properties of the resulting materials were evaluated in a bacterial adhesion test against gram-positive bacteria (S. aureus). We observed significantly reduced cellular adhesion of the zwitterionic material compared to pristine PE. These microbiological tests were complemented by tests in natural seawater. During a test period of 21 days, confocal microscopy revealed excellent antifouling properties and confirmed the operating antifouling mechanism. The procedure reported herein allows the efficient surface modification of bulk PE with zwitterionic sulfobetaine polymer brushes via a scalable approach. The resulting modified PE retains important properties of the bulk material and has excellent and durable antifouling properties.
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Affiliation(s)
- Nils Burmeister
- Universität Hamburg, Department of Chemistry, Bundesstrasse 45, 20146 Hamburg, Germany
| | - Christel Vollstedt
- Universität Hamburg, Department of Microbiology and Biotechnology, Ohnhorststrasse 18, 22609 Hamburg, Germany
| | - Cathrin Kröger
- Universität Hamburg, Department of Microbiology and Biotechnology, Ohnhorststrasse 18, 22609 Hamburg, Germany
| | - Timo Friedrich
- Universität Hamburg, Department of Chemistry, Bundesstrasse 45, 20146 Hamburg, Germany
| | - Nico Scharnagl
- Helmholtz-Zentrum Hereon GmbH, Institute of Surface Science, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Marcus Rohnke
- Justus-Liebig-Universität Gießen, Institute of Physical Chemistry, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Eilika Zorn
- Universität Hamburg, Department of Chemistry, Bundesstrasse 45, 20146 Hamburg, Germany
| | - Sebastian G Wicha
- Universität Hamburg, Department of Chemistry, Bundesstrasse 45, 20146 Hamburg, Germany
| | - Wolfgang R Streit
- Universität Hamburg, Department of Microbiology and Biotechnology, Ohnhorststrasse 18, 22609 Hamburg, Germany
| | - Wolfgang Maison
- Universität Hamburg, Department of Chemistry, Bundesstrasse 45, 20146 Hamburg, Germany.
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Feng S, Zhong Z, Zhang F, Wang Y, Xing W. Amphiphobic Polytetrafluoroethylene Membranes for Efficient Organic Aerosol Removal. ACS APPLIED MATERIALS & INTERFACES 2016; 8:8773-8781. [PMID: 27002786 DOI: 10.1021/acsami.5b11315] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Polytetrafluoroethylene (PTFE) membrane is an extensively used air filter, but its oleophilicity leads to severe fouling of the membrane surface due to organic aerosol deposition. Herein, we report the fabrication of a new amphiphobic 1H,1H,2H,2H-perfluorodecyl acrylate (PFDAE)-grafted ZnO@PTFE membrane with enhanced antifouling functionality and high removal efficiency. We use atomic-layer deposition (ALD) to uniformly coat a layer of nanosized ZnO particles onto porous PTFE matrix to increase surface area and then subsequently graft PFDAE with plasma. Consequently, the membrane surface showed both superhydrophobicity and oleophobicity with a water contact angle (WCA) and an oil contact angle (OCA) of 150° and 125°, respectively. The membrane air permeation rate of 513 (m(3) m(-2) h(-1) kPa(-1)) was lower than the pristine membrane rate of 550 (m(3) m(-2) h(-1) kPa(-1)), which indicates the surface modification slightly decreased the membrane air permeation. Significantly, the filtration resistance of this amphiphobic membrane to the oil aerosol system was much lower than the initial one. Moreover, the filter exhibited exceptional organic aerosol removal efficiencies that were greater than 99.5%. These results make the amphiphobic PTFE membranes very promising for organic aerosol-laden air-filtration applications.
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Affiliation(s)
- Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University , Nanjing 210009, China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University , Nanjing 210009, China
| | - Feng Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University , Nanjing 210009, China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University , Nanjing 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University , Nanjing 210009, China
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Pâslaru E, Fras Zemljic L, Bračič M, Vesel A, Petrinić I, Vasile C. Stability of a chitosan layer deposited onto a polyethylene surface. J Appl Polym Sci 2013. [DOI: 10.1002/app.39329] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elena Pâslaru
- Petru Poni Institute of Macromolecular Chemistry; Physical Chemistry of Polymers Department; 41A Grigore Ghica Voda Alley; 700487; Iasi; Romania
| | - Lidija Fras Zemljic
- Faculty of Chemical Engineering; University of Maribor; Smetanova Ulica 17; SI-2000; Maribor; Slovenia
| | - Matej Bračič
- Institute for Textile Chemistry; Faculty of Mechanical Engineering, Laboratory for Characterization and Processing of Polymers; University of Maribor; Smetanova Ulica 17; SI-2000; Maribor; Slovenia
| | - Alenka Vesel
- Jožef Stefan Institute; Jamova 39; 1000; Ljubljana; Slovenia
| | - Irena Petrinić
- Center of Excellence for Polymer Materials and Technologies; Tehnološki Park 24; 1000; Ljubljana; Slovenia
| | - Cornelia Vasile
- Petru Poni Institute of Macromolecular Chemistry; Physical Chemistry of Polymers Department; 41A Grigore Ghica Voda Alley; 700487; Iasi; Romania
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Lin KJ, Hsueh CH, Lin KF. Novel method to measure the shear strength of exfoliated montmorillonite/polymer nanocomposite films. POLYM INT 2011. [DOI: 10.1002/pi.3166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Shan B, Yan H, Shen J, Lin S. Ozone-induced grafting of a sulfoammonium zwitterionic polymer onto low-density polyethylene film for improving hemocompatibility. J Appl Polym Sci 2006. [DOI: 10.1002/app.20860] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Zhai G, Kang E, Neoh K. Poly(2-vinylpyridine)- and poly(4-vinylpyridine)-graft-poly(vinylidene fluoride) copolymers and their pH-sensitive microfiltration membranes. J Memb Sci 2003. [DOI: 10.1016/s0376-7388(03)00140-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gaboyard M, Robin JJ, Hervaud Y, Boutevin B. Free-radical graft copolymerization of phosphonated methacrylates onto low-density polyethylene. J Appl Polym Sci 2002. [DOI: 10.1002/app.11142] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Liu YX, Kang ET, Neoh KG, Tan KL, Huang CC, Liaw DJ. Lamination of polytetrafluoroethylene films via surface thermal graft copolymerization with ionic and zwitterionic monomers. J Appl Polym Sci 1999. [DOI: 10.1002/(sici)1097-4628(19991024)74:4<816::aid-app7>3.0.co;2-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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