Development of flat-sheet membranes for C1–C4 alcohols dehydration via pervaporation from sulfonated polyphenylsulfone (sPPSU)

Tang, Yupan; Widjojo, Natalia; Shi, Gui Min; Chung, Tai‐Shung; Weber, Martin; Maletzko, Christian

doi:10.1016/j.memsci.2012.05.056

Cited by 73 publications

(37 citation statements)

References 48 publications

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“…Despite the aforementioned significant properties of PPSU, there have been a few numbers of studies concerning the preparation and characterization of flat‐sheet PPSU membranes for liquid filtration. The publications on liquid filtration using this kind of membrane generally focused on pervaporation, nanofiltration of solvents, ultrafiltration (UF), and adsorption‐enhanced UF …”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of modified polyphenylsulfone membranes with hydrophilic property for filtration of aqueous media

Kiani

Mousavi

Saljoughi

et al. 2018

Polymers for Advanced Techs

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In the present research, the low water flux of polyphenylsulfone membranes was addressed, and a novel improvement in their water permeation and fouling resistance was achieved using polyethylene glycol (PEG) as the hydrophilic additive. Scanning electron microscopy and field emission scanning electron microscopy, atomic force microscopy, attenuated total reflection Fourier‐transform infrared spectroscopy, thermogravimetric analysis, and tensile test were applied for the investigation of membrane morphology, surface topography, surface chemical structure, thermal stability, and mechanical properties, respectively. Moreover, the relative hydrophilicity/hydrophobicity of the membranes was assessed via determination of membrane water uptake capacity and water contact angle. The membrane performance was studied and compared by determination of pure water flux and filtration of canned beans production wastewater as well as bovine serum albumin solution. The filtration results indicated a remarkable pure water flux and 100% turbidity rejection provided by the polyphenylsulfone/PEG 20 000 membrane. In addition, it was confirmed that the amount of residual PEG within the membrane was increased with increasing PEG molecular weight and concentration.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of modified polyphenylsulfone membranes with hydrophilic property for filtration of aqueous media

Kiani

Mousavi

Saljoughi

et al. 2018

Polymers for Advanced Techs

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“…For all membranes, when the temperature increased from 50°C to 200°C, the weight of the membranes only reduced slightly for the reason of vaporization of the absorbed water in membranes. The weight loss at 210–360°C was ascribed to the degradation of the main polymer chain . Because of the carbonation of polymer matrix, more than 90% weight was lost before 480°C and the membranes decomposed completely at around 500°C.…”

Section: Resultsmentioning

confidence: 99%

“…The ideal sorption selectivity α s was calculated by

α_{s} = W_{W, \infty} / W_{B, \infty}

where W W , ∞ and W B , ∞ are the swelling degrees of the pure water and pure n ‐butanol in the membranes, respectively …”

Section: Methodsmentioning

confidence: 99%

“…), the membrane should have high affinity and selectivity to water. Various hydrophilic membrane materials with excellent performances for the PV separation of aqueous organic solution such as PVA, chitosan, polysulfone, polyimide, polyamides, and polyaniline have been developed and used. Because of its good performances in film forming, hydrophilicity, and chemical‐resistant properties, PVA membrane has been applied in the fields of enzyme immobilization, gas separation, fuel cells, and pervaporation dehydration of organics .…”

Section: Introductionmentioning

confidence: 99%

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Preparation and characterization of PVA membrane modified by water‐soluble hyperbranched polyester (WHBP) for the dehydration of n‐butanol

Zhang

Sun

et al. 2016

J of Applied Polymer Sci

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Water-soluble hyperbranched polyester (WHBP) was synthesized through the esterification reaction of the fourth generation hyperbranched polyester and maleic anhydride. A novel cross-linked WHBP/PVA membrane was prepared by adding WHBP into poly(vinyl alcohol) (PVA) solution with glutaraldehyde as the cross-linker. WHBP was characterized by Nuclear Magnetic Resonance and Attenuated Total Reflection Fourier Transform Infrared Spectroscopy (ATR-FTIR), while WHBP/PVA membranes were characterized by ATR-FTIR, X-ray Diffraction, Scanning Electron Microscopy, Thermogravimetric Analysis, mechanical capacity, and water contact angle. Testing results showed that maleic anhydride was grafted on the surface of WHBP; compared with PVA membrane, WHBP/PVA membrane had lower crystallinity, weaker mechanical strength, higher hydrophilicity, and better thermal stability. Sorption and diffusion behaviors of n-butanol and water in WHBP/PVA membrane were investigated; pervaporation performances of WHBP/PVA membrane were studied through the dehydration of the 90 wt % n-butanol aqueous solution at 40 8C. With an increase of the WHBP content from 0 to 30 wt %, both n-butanol uptake and n-butanol diffusion coefficient first decreased then increased; n-butanol flux first decreased from 10 to 2 gÁm

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“…Butanol is a polar solvent and thus has a strong cohesion effect in water due to strong hydrogen bonding. This will increase the coupling effect on permeation between water and n ‐butanol, resulting in a decrease in the separation factor even with increasing feed operating temperature . Therefore, selectivity is higher at low temperatures most likely due to the expansion of the polymer chains encountered in the membranes at higher temperatures and generation of free volumes quite enough for the penetrants to pass in a nonselective fashion.…”

Section: Resultsmentioning

confidence: 99%

Novel amphiphilic conetworks based on compatibilized NBR/SBR–montmorillonite nanovulcanizates as membranes for dehydrative pervaporation of water–butanol mixtures

Essawy¹,

Tawfik²,

El‐Sabbagh³

et al. 2013

Polymer Engineering & Sci

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Nanocomposite vulcanizates comprising the poorly compatible acrylonitrile butadiene rubber/styrene butadiene rubber blend are homogenized with 20 parts per hundred montmorillonite forms showing various levels of amphiphathicity: slightly hydrophobic (Mont‐25/50) and highly hydrophobic (Mont75/100) as compared to the highly hydrophilic pristine form (Mont‐0). The purpose of the amphiphathicity is to afford simultaneous binding sites for the poorly compatible components. Thus maximum compatibility is reached with either Mont‐75 or Mont‐50 which improves the mechanical properties. Scanning electron microscopy corroborates cocontinuous morphology. Water vapor permeation through sheets/membranes fabricated from these compositions follows best performance with Mont‐25 followed by Mont‐50 while Mont‐75 and Mont‐100 based membranes acquire an organized continuous drop. This highlights the role of organophilicity in dominating the morphology and performance in pervaporation application. Dehydration of butanol is effective using such membranes with superiority for Mont‐25 based membrane. A plausible model for the transport mechanism was proposed and supported by activation energy calculations for the permeation of the individual components and the sorption affinity measurements as well. All these parameters together suggest the arrest of the n‐butanol within the macrmolecular chains of the membranes, favored by its chemical affinity. This allows therefore a passageway for the water to cross to the other side of the membrane through plasticization of the chains and creation of free volumes which is known as solution diffusion mechanism. POLYM. ENG. SCI., 54:1560–1570, 2014. © 2013 Society of Plastics Engineers

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Development of flat-sheet membranes for C1–C4 alcohols dehydration via pervaporation from sulfonated polyphenylsulfone (sPPSU)

Cited by 73 publications

References 48 publications

Preparation and characterization of modified polyphenylsulfone membranes with hydrophilic property for filtration of aqueous media

Preparation and characterization of modified polyphenylsulfone membranes with hydrophilic property for filtration of aqueous media

Preparation and characterization of PVA membrane modified by water‐soluble hyperbranched polyester (WHBP) for the dehydration of n‐butanol

Novel amphiphilic conetworks based on compatibilized NBR/SBR–montmorillonite nanovulcanizates as membranes for dehydrative pervaporation of water–butanol mixtures

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