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Zhang G, Bui V, Yin Y, Tsai EHR, Nam CY, Lin H. Carbon Capture Membranes Based on Amorphous Polyether Nanofilms Enabled by Thickness Confinement and Interfacial Engineering. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37440697 DOI: 10.1021/acsami.3c07046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Thin-film composite membranes are a leading technology for post-combustion carbon capture, and the key challenge is to fabricate defect-free selective nanofilms as thin as possible (100 nm or below) with superior CO2/N2 separation performance. Herein, we developed high-performance membranes based on an unusual choice of semi-crystalline blends of amorphous poly(ethylene oxide) (aPEO) and 18-crown-6 (C6) using two nanoengineering strategies. First, the crystallinity of the nanofilms decreases with decreasing thickness and completely disappears at 500 nm or below because of the thickness confinement. Second, polydimethylsiloxane is chosen as the gutter layer between the porous support and selective layer, and its surface is modified with bio-adhesive polydopamine (<10 nm) with an affinity toward aPEO, enabling the formation of the thin, defect-free, amorphous aPEO/C6 layer. For example, a 110 nm film containing 40 mass % C6 in aPEO exhibits CO2 permeability of 900 Barrer (much higher than a thick film with 420 Barrer), rendering a membrane with a CO2 permeance of 2200 GPU and CO2/N2 selectivity of 27 at 35 °C, surpassing Robeson's upper bound. This work shows that engineering at the nanoscale plays an important role in designing high-performance membranes for practical separations.
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Affiliation(s)
- Gengyi Zhang
- Department of Chemical and Biological Engineering, University at Buffalo, The State University at New York, Buffalo, New York 14260, United States
| | - Vinh Bui
- Department of Chemical and Biological Engineering, University at Buffalo, The State University at New York, Buffalo, New York 14260, United States
| | - Yifan Yin
- Department of Material Science and Chemical Engineering, Stony Brook University, The State University at New York, Stony Brook, New York 11794, United States
| | - Esther H R Tsai
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Chang-Yong Nam
- Department of Material Science and Chemical Engineering, Stony Brook University, The State University at New York, Stony Brook, New York 11794, United States
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Haiqing Lin
- Department of Chemical and Biological Engineering, University at Buffalo, The State University at New York, Buffalo, New York 14260, United States
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Non-isothermal crystallization kinetics of confined poly (ethylene oxide) in electrospun nanofibers prepared from polystyrene/ poly (ethylene oxide) blends. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02984-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Evaluation of the PLA-nZH-Cu Nanocomposite Film on the Micro-Biological, Organoleptic and Physicochemical Qualities of Packed Chicken Meat. Foods 2022; 11:foods11040546. [PMID: 35206023 PMCID: PMC8871482 DOI: 10.3390/foods11040546] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/05/2022] [Accepted: 02/09/2022] [Indexed: 12/04/2022] Open
Abstract
This research evaluated the contribution of nanocomposite films based on different concentrations of nZH-Cu (1%, 2%, and 3%) to the microbiological, organoleptic, and physicochemical characteristics of packed chicken breast meat. Analysis of some meat quality traits, such as microbiological, chemical, and physical, were conducted on a laboratory scale. For this, small squares of chicken breast meat, weighing approximately 10 g, were aseptically wrapped with rectangular pieces of 5 × 10 cm PLA-nZH-Cu nanocomposite films, which were stored at 4 °C for 20 days. The microbiological results indicated efficient antibacterial activity (at any nZH-Cu concentration in the nanocomposite films) on the total viable count of groups of psychrophiles, aerobic mesophiles, Enterobacteriaceae, and Salmonella spp. until day 10 of storage (p < 0.05). No significant changes were observed in the organoleptic (color) and physicochemical qualities (texture, weight, pH, and acidity) until day 10 of storage at 4 °C (p < 0.05). The analysis of the experimental tests carried out determined that the PLA-nZH-Cu nanocomposite films played an effective role in the bacterial safety of the packaged chicken. It was concluded that the nZH-Cu nanocomposite films, at all concentrations tested, extended the shelf life of the chicken breast meat for up to 10 days in a refrigerator at 4 °C.
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Wang B, Yao J, Wang H, Wang M. Construction of a ternary system: a strategy for the rapid formation of porous poly(lactic acid) fibers. RSC Adv 2022; 12:6476-6483. [PMID: 35424639 PMCID: PMC8982102 DOI: 10.1039/d2ra00018k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/11/2022] [Indexed: 11/21/2022] Open
Abstract
Combining electrospinning technology with nonsolvent induced phase separation (ESP-NIPS), 10 wt% poly(lactic acid) (PLA) spinning solutions are prepared by using chloroform as a good solvent and absolute ethanol as a nonsolvent. The “PLA/CHCl3/C2H5OH” ternary system is constituted to realize the rapid preparation of porous-structured PLA fibers. The morphologies, thermal properties and crystalline structures of the obtained fibers are characterized and the rapid forming mechanism of PLA porous fibers is investigated and discussed. The interaction parameters between the substances of the “PLA/CHCl3/C2H5OH” ternary system, binodal line, spinodal line and critical point are obtained by theoretical calculation and experiment, and the “PLA/CHCl3/C2H5OH” ternary phase diagram model is established. The results show that, when the mass ratio of chloroform/ethanol is around 75/25, the rapid “in situ” formation of the PLA fibers can be realized with porous structures within 5–10 s. The establishment of a “nonsolvent-solvent–polymer” ternary phase diagram model has laid a theoretical foundation for the rapid formation of polymer porous fibers by ESP-NIPS. The ESP-NIPS for the porous PLA fibers preparation provides a new resolution for the rapid formation of porous polymer materials, which is vital to further expand the application of electrospun fibers in emergency situations such as isolation, protection, insulation and flame retardant usage. Combining electrospinning technology with ESP-NIPS, using chloroform as a solvent and absolute ethanol as a nonsolvent, poly(lactic acid) porous fibres are prepared within 5–10 s. This preparation provides a new resolution for the rapid formation of porous polymer materials.![]()
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Affiliation(s)
- Bei Wang
- Key Laboratory of Macromolecular Science & Technology of Shaanxi Province, Northwestern Polytechnical University, Xi'an 710129, Shaanxi, China
| | - Junyan Yao
- Key Laboratory of Macromolecular Science & Technology of Shaanxi Province, Northwestern Polytechnical University, Xi'an 710129, Shaanxi, China
| | - Haoyu Wang
- School of Queen Mary University of London Engineering, Northwestern Polytechnical University, Xi'an 710129, Shaanxi, China
| | - Mengqi Wang
- School of Queen Mary University of London Engineering, Northwestern Polytechnical University, Xi'an 710129, Shaanxi, China
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Nguyen NQ, Chen TF, Lo CT. Confined crystallization and chain conformational change in electrospun poly(ethylene oxide) nanofibers. Polym J 2021. [DOI: 10.1038/s41428-021-00492-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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6
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Suppression of crystallization in thin films of cellulose diacetate and its effect on CO2/CH4 separation properties. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.05.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Li S, Wang H, Liu L, Xu H, Shi H. On the crystallization behavior of a poly(stearyl methacrylate) comb-like polymer inside a nanoscale environment. CrystEngComm 2018. [DOI: 10.1039/c8ce01378k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A “soft” or “hard” nanoscale template illustrates the confined processes of a poly(stearyl methylacrylate) comb-like polymer, indicating that reduced chain relaxation and mobility influence the crystallization behavior.
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Affiliation(s)
- Shuqin Li
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage
- School of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Haixia Wang
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage
- School of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Luntao Liu
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage
- School of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Hongxing Xu
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage
- School of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Haifeng Shi
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage
- School of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
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Zou SF, Wang RY, Fan B, Xu JT, Fan ZQ. Effect of interface and confinement size on the crystallization behavior of PLLA confined in coaxial electrospun fibers. J Appl Polym Sci 2017. [DOI: 10.1002/app.45980] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shu-Fen Zou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Rui-Yang Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Bin Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Jun-Ting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhi-Qiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering; Zhejiang University; Hangzhou 310027 China
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Zou SF, Guo XS, Wang RY, Fan B, Xu JT, Fan ZQ. Effect of annealing-induced interfacial demixing on crystallization of PEO confined in coaxial electrospun nanofibers. J Appl Polym Sci 2017. [DOI: 10.1002/app.45760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Shu-Fen Zou
- Department of Polymer Science & Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Xiao-Shuai Guo
- Department of Polymer Science & Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Rui-Yang Wang
- Department of Polymer Science & Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Bin Fan
- Department of Polymer Science & Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Jun-Ting Xu
- Department of Polymer Science & Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
| | - Zhi-Qiang Fan
- Department of Polymer Science & Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Zhejiang University; Hangzhou 310027 China
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Geometrical effects during crystallization under confinement in electrospun core-shell fibers. DSC study of crystallization kinetics. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Volynskii AL, Yarysheva AY, Rukhlya EG, Yarysheva LM, Bakeev NF. Effect of spatial restrictions at the nanometer scale on structuring in glassy and crystalline polymers. POLYMER SCIENCE SERIES A 2015. [DOI: 10.1134/s0965545x15050168] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Moghaddam MK, Mortazavi SM, Khaymian T. Micro/nano-encapsulation of a phase change material by coaxial electrospray method. IRANIAN POLYMER JOURNAL 2015. [DOI: 10.1007/s13726-015-0364-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Liu Y, Li X, Ramakrishna S. Melt electrospinning in a parallel electric field. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/polb.23511] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yong Liu
- College of Mechanical and Electric Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Xiuhong Li
- College of Mechanical and Electric Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Seeram Ramakrishna
- Nanoscience and Nanotechnology Initiative; National University of Singapore; Singapore 117576 Singapore
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