Preparation and characterization of a novel solvent-resistant and autoclavable polymer membrane

Hicke, Hans‐Georg; Lehmann, Ingeburg; Malsch, G.; Ulbricht, Mathias; Becker, Margot

doi:10.1016/s0376-7388(01)00595-6

Cited by 72 publications

(38 citation statements)

References 16 publications

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“…Therefore, cellulosics or PVA are once again being considered as possible candidates for industrial use [12] . As known, polyacrylonitrile (PAN) presents good mechanical property and good hydrophobicity and has been widely used as film materials [14][15][16][17][18][19] . The introduction of PAN into PVA film is expected to adjust the physicochemical properties of PVA film.…”

Section: Introductionmentioning

confidence: 99%

Study on Properties of Poly(vinyl alcohol)/Polyacrylonitrile Blend Film

Zhu¹,

Wang²,

Xu³

et al. 2013

Polímeros

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Abstract:In this work, a series of poly(vinyl alcohol) (PVA)/polyacrylonitrile (PAN) blend films with different PAN mole contents were prepared by casting the polymer blend solution in dimethylsulfoxide (DMSO). Surface morphologies of PVA/PAN blend films were analyzed by Scanning Electronic Microscopy (SEM) and Atomic Force Microscopy (AFM). Thermal, mechanical, and chemical properties of PVA/PAN blend films were investigated by Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), Tensile Tests, and Surface Contact Angle Tests. The results showed that the introduction of PAN could exert marked effects on the properties of PVA films.

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Section: Introductionmentioning

confidence: 99%

Study on Properties of Poly(vinyl alcohol)/Polyacrylonitrile Blend Film

Zhu¹,

Wang²,

Xu³

et al. 2013

Polímeros

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show abstract

“…Hence, non-solvent in-diffusion is slowed down and demixing delayed, resulting in membranes with thicker skin-layers and sublayers with lower porosities [2]. This results in lower permeabilities because of the larger resistance of the skin layer [19][20][21][22][23][24]. The skin layer could also become denser by this effect, which would increase retentions.…”

Section: Resultsmentioning

confidence: 99%

Separation of a high-value pharmaceutical compound from waste ethanol by nanofiltration

Martínez¹,

Bruggen

Negrín³

et al. 2012

Journal of Industrial and Engineering Chemistry

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“…Poly(acrylonitrile-co-glycidyl methacrylate) (PANGMA) as the polymer to be electrospun and to be formed as nanofibers was synthesized at Helmholtz-Zentrum Geesthacht (Geesthacht, Germany; previously GKSS Forschungszentrum GmbH) 10 with a molecular weight (Mn) of ca. 100,000 g/mol and glycidyl methacrylate (GMA) content of 13 mol%.…”

Section: Methodsmentioning

confidence: 99%

Biofunctionalized nanofibrous membranes mimicking carnivorous plants

Homaeigohar

Disci-Zayed²,

Dai

et al. 2013

Bioinspired, Biomimetic and Nanobiomaterials

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A novel biofunctionalized nanofibrous membrane is developed through immobilization of protein ligands on the surface of nanofibers. The biofunctionalization not only enhances the membrane's structural properties including mechanical and thermal ones but also makes the membrane capable to separate nanoparticles and biomolecules much smaller than the pore size from water efficiently. Upon contact with water, the conformational change of the protein immobilized leads to its swelling, thereby an enlarged functional surface area and a higher steric hindrance capturing the filtrates. In case of filtration of a plasmonic nanoparticle containing suspension, decoration of the membrane with the plasmonic nanoparticles forms a smart bionanocomposite biosensor for detection of protein denaturation. IntroductionMembrane technology for water treatment is steadily gaining very high importance worldwide. This is primarily due to water pollution and dwindling fresh water supplies leading to water scarcity. Water quality has to be controlled to ensure a safer environment by implementing efficient technologies such as advanced membranes offering more output with less input, that is, efficient energy saving membranes. Electrospun nanofibrous membranes (ENMs) that have the potential to be used as advanced membrane systems will be able to remove pollutants from the environment at lower energy and hence cost.1 Energy saving by ENMs derives from their high interconnected porosity leading to a very high permeability.2 Despite an extraordinary permeability, ENMs suffer from low size selectivity. Microfiltration (MF) range pore size of ENMs makes them efficient in removing relatively coarse particles and suspended solids but not tiny substances smaller than the pore size. [3][4][5][6][7] Considering the importance of separation of nanoparticles also organics that can be detrimental to the quality of water systems, optimizing the selectivity of such membranes could be crucial. Accordingly, not only the high permeability of the membrane is preserved but also on the basis of selectivity, the application domain would be extended from MF to ultrafiltration (UF) and even nanofiltration. Long-term functionality, that is, longevity of ENMs with regard to their extraordinary surface area thereby a higher exposed surface to the water streams is dependent on their mechanical stability. Hence, to maximize the efficiency of an ENM, besides the optimization of the selectivity, its mechanical stabilization should be also stressed.Here, we show that through one-single approach, that is, protein functionalization, an ENM can acquire mechanical and thermal stability while showing more optimum selectivity. Inspired by the

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Preparation and characterization of a novel solvent-resistant and autoclavable polymer membrane

Cited by 72 publications

References 16 publications

Study on Properties of Poly(vinyl alcohol)/Polyacrylonitrile Blend Film

Study on Properties of Poly(vinyl alcohol)/Polyacrylonitrile Blend Film

Separation of a high-value pharmaceutical compound from waste ethanol by nanofiltration

Biofunctionalized nanofibrous membranes mimicking carnivorous plants

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