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Kianfar P, Bongiovanni R, Ameduri B, Vitale A. Electrospinning of Fluorinated Polymers: Current State of the Art on Processes and Applications. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2067868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Parnian Kianfar
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Roberta Bongiovanni
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Bruno Ameduri
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Alessandra Vitale
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
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Khayet M, García-Payo C, Matsuura T. Superhydrophobic nanofibers electrospun by surface segregating fluorinated amphiphilic additive for membrane distillation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117215] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zha J, Batisse N, Claves D, Dubois M. A universal fluorous technology toward superhydrophobic coatings. J Colloid Interface Sci 2019; 553:778-787. [DOI: 10.1016/j.jcis.2019.06.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/19/2019] [Accepted: 06/19/2019] [Indexed: 11/26/2022]
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Khayet M, Wang R. Mixed Matrix Polytetrafluoroethylene/Polysulfone Electrospun Nanofibrous Membranes for Water Desalination by Membrane Distillation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24275-24287. [PMID: 29924587 DOI: 10.1021/acsami.8b06792] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The electrospinning technique was used successfully to fabricate nanofibers of polysulfone (PSF) in which polytetrafuoroethylene nanoparticles (PTFE NPs) were embedded. The size of the PTFE NPs is only 1.7 to 3.6 times smaller than the nanofiber diameter. The transition from hydrophobic to superhydrophobic character of the bead-free PSF electrospun nanofiber mats occurred with a PTFE NPs loading in the range 12-18% of the PSF weight. Transmission electron microscopy images revealed protruding nanosized asperities on the fiber surface due to the embedded PTFE NPs in the PSF matrix. For low PTFE NPs content in PSF matrix (<6% of the polymer weight), the PTFE NPs were arranged one by one in a single file along the PSF nanofiber axis. The structural characteristics of the nanofibers and electrospun nanofibrous membranes (ENMs) were studied by means of different techniques and their relationship with the PTFE NPs loading in PSF were discussed. The PSF/PTFE ENMs were tested in desalination by direct contact membrane distillation (DCMD) and the obtained performance was discussed in terms of the ENMs structural characteristics. Competitive permeate fluxes, as high as 39.5 kg/m2h, with stable low permeate electrical conductivities (<7.145 μS/cm) for 30 g/L NaCl aqueous solution and transmembrane temperature of 60 °C were achieved without detecting any interfiber space wetting.
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Affiliation(s)
- Mohamed Khayet
- Department of Structure of Matter, Thermal Physics and Electronics, Faculty of Physics , University Complutense of Madrid , Avda. Complutense s/n 28040 Madrid , Spain
- Madrid Institute of Advances Studies of Water (IMDEA Water Institute) , Calle Punto Com No. 2 , 28805 Alcalá de Henares, Madrid , Spain
| | - Rong Wang
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute , Nanyang Technological University , 1 Cleantech Loop , Singapore 637141 , Singapore
- School of Civil and Environmental Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
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Zuo B, Li C, Li Y, Qian W, Ye X, Zhang L, Wang X. Toward Achieving Highly Ordered Fluorinated Surfaces of Spin-Coated Polymer Thin Films by Optimizing the Air/Liquid Interfacial Structure of the Casting Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3993-4003. [PMID: 29505264 DOI: 10.1021/acs.langmuir.8b00309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Thin polymer films with well-assembled fluorinated groups on their surfaces are not easily achieved via spin-coating film-fabrication methods because the solution solidifies very rapidly during spin-coating, which hinders the fluorinated moieties from segregating and organizing on the film surface. In this contribution, we have proposed a comprehensive strategy toward achieving well-ordered fluorinated thin films surfaces by optimizing the molecular organization at air/liquid interface of the film-formation solutions. To validate such a route, poly(methyl methacrylate) (PMMA) end-capped with several 2-perfluorooctylethyl methacrylate (FMA) units was employed as the model polymer for investigations. The air/solution interfacial structures were optimized by systematically changing the polymer chain structures and properties of the casting solvents. It was found that the polymers that form loosely associated aggregates (e.g., FMA1- ec-PMMA65- ec-FMA1) and a solvent with better solubility to FMA while having not too low surface tension (i.e., toluene) can combine to produce solutions with well-assembled FMA at the interfaces. By spin-coating the solutions with well-organized interfaces, an ultrathin film with perfluorinated groups that were highly oriented toward the film surface was readily achieved, exhibiting surface energies as low as 7.2 mJ/m2, which is among the lowest reported so far for the spin-coated thin films, and a very high F/C ratio (i.e., 0.98).
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Affiliation(s)
- Biao Zuo
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Cheng Li
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Yawei Li
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Wenhao Qian
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Xiuyun Ye
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Li Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Xinping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry , Zhejiang Sci-Tech University , Hangzhou 310018 , China
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Zhao J, Li Y, Sheng J, Wang X, Liu L, Yu J, Ding B. Environmentally Friendly and Breathable Fluorinated Polyurethane Fibrous Membranes Exhibiting Robust Waterproof Performance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29302-29310. [PMID: 28796476 DOI: 10.1021/acsami.7b08885] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Waterproof and breathable membranes that provide a high level of protection and comfort are promising core materials for meeting the pressing demand for future upscale protective clothing. However, creating such materials that exhibit environmental protection, high performance, and ease of fabrication has proven to be a great challenge. Herein, we report a novel strategy for synthesizing fluorinated polyurethane (C6FPU) containing short perfluorohexyl (-C6F13) chains and introduced it as hydrophobic agent into a polyurethane (PU) solution for one-step electrospinning. A plausible mechanism about the dynamic behavior of fluorinated chains with an increasing C6FPU concentration was proposed. Benefiting from the utilization of magnesium chloride (MgCl2), the fibrous membranes had dramatically decreased maximum pore sizes. Consequently, the prepared PU/C6FPU/MgCl2 fibrous membranes exhibited an excellent hydrostatic pressure of 104 kPa, a modest water vapor transmission rate of 11.5 kg m-2 d-1, and a desirable tensile strength of 12.4 MPa. The facile fabrication of PU/C6FPU/MgCl2 waterproof and breathable membranes not only matches well with the tendency to be environmentally protective but also fully meets the requirements for high performance in extremely harsh environments.
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Affiliation(s)
- Jing Zhao
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
| | - Yang Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, China
| | - Junlu Sheng
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
| | - Xianfeng Wang
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
| | - Lifang Liu
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
| | - Jianyong Yu
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University , Shanghai 200051, China
| | - Bin Ding
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University , Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University , Shanghai 200051, China
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Zhang Y, Fan H, Wang Y, Zuo B, Zhang W, Wang S, Wang X. Influence of the linkage type between the polymer backbone and side groups on the surface segregation of methyl groups during film formation. SOFT MATTER 2015; 11:9168-9178. [PMID: 26415634 DOI: 10.1039/c5sm01504a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Although poly(vinyl acetate) (PVAc) differs from poly(methyl acrylate) (PMA) only in the reversed position of the ester group, a large difference in the concentration dependence of the casting solution on the corresponding surface structure of the cast films of PVAc, PMA and poly(methyl methacrylate) (PMMA) was observed. The hydrophobicity of both PMA and PMMA films increased with increasing concentration of the corresponding polymer solution, whereas cast PVAc films showed the reverse trend. The surface structure of the cast films prepared with different concentrations of the casting solution, characterized by sum frequency generation (SFG) vibrational spectra, showed that the order of the methylene groups increased while that of the acetyl methyl group decreased on the surface of cast PVAc film with increasing concentration of casting solution. However, the order of the ester methyl group increased and that of methylene groups did not change for cast PMA films with increasing concentration of casting solution. The cast PMMA film showed a reverse trend compared with the corresponding PMA film. It is apparent that well-ordered ester or acetyl methyl groups on the surface, which are oriented away from the polymer film, rather than methylene groups, play an important role in determining surface hydrophobicity, as the latter shield the OC[double bond, length as m-dash]O groups of PVAc, PMA and PMMA film surfaces from being exposed, resulting in low surface free energy. The reason for this difference is attributed to the relatively low energy for ester methyl group reorientation, an ester group structure nearer to the trans state and more regular local configuration of segments in concentrated solutions of PMA and PMMA compared to that of PVAc.
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Affiliation(s)
- Yizhi Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Hao Fan
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yuping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Biao Zuo
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wei Zhang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Shunli Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xinping Wang
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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Fluorinated hyperbranched polyurethane electrospun nanofibrous membrane: Fluorine-enriching surface and superhydrophobic state with high adhesion to water. J Colloid Interface Sci 2014; 421:49-55. [DOI: 10.1016/j.jcis.2014.01.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 01/02/2014] [Accepted: 01/09/2014] [Indexed: 11/24/2022]
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Verma R, Creager S, Ballato J, Smith DW. Optimized statically non-wetting hydrophobic electrospun surface of perfluorocyclobutyl aryl ether polymer. POLYM INT 2013. [DOI: 10.1002/pi.4529] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Rajneesh Verma
- Department of Chemistry and the Alan G. MacDiarmid NanoTech Institute; University of Texas at Dallas; Richardson TX 75080 USA
| | - Stephen Creager
- Department of Chemistry and Center for Optical Material Science and Engineering; (COMSET), Clemson University; Clemson SC 29631 USA
| | - John Ballato
- Department of Chemistry and Center for Optical Material Science and Engineering; (COMSET), Clemson University; Clemson SC 29631 USA
| | - Dennis W Smith
- Department of Chemistry and the Alan G. MacDiarmid NanoTech Institute; University of Texas at Dallas; Richardson TX 75080 USA
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Detection of free surface composition and molecular-level structural development of styrene(S)/butadiene(B) block copolymer films during a solution-to-film process. Sci China Chem 2012. [DOI: 10.1007/s11426-012-4518-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Dual-action hygienic coatings: Benefits of hydrophobicity and silver ion release for protection of environmental and clinical surfaces. J Colloid Interface Sci 2010; 345:286-92. [DOI: 10.1016/j.jcis.2010.02.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 02/01/2010] [Accepted: 02/05/2010] [Indexed: 02/02/2023]
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