A facile method for synthesis of pegylated polyethersulfone and its application in fabrication of antifouling ultrafiltration membrane

Shi, Qing; Su, Yanlei; Zhu, Shiping; Li, Chao; Zhao, Yanyan; Jiang, Zhongyi

doi:10.1016/j.memsci.2007.07.009

Cited by 162 publications

(60 citation statements)

References 34 publications

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“…4 The risk of the fouling effect due to the high hydrophobicity of PES, especially in protein-contacting applications and aqueous ltrations, limits their wide applications. 2,3 Numerous research studies have reported efforts to enhance the hydrophilicity of the PES membrane surface. 1,5 Basically, the water contact angle (WCA) formed between the membrane-liquid boundary and liquid-gas tangent is generally employed to evaluate the hydrophilic properties of the membrane.…”

Section: -3mentioning

confidence: 99%

Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending

2018

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The blending of additives in the polyethersulfone (PES) matrix is an important approach in the membrane industry to reduce membrane hydrophobicity and improve the performance (flux, solute rejection, and reduction of fouling). Several (hydrophilic) modifications of the PES membrane have been developed.Given the importance of the hydrophilic modification methods for PES membranes and their applications, we decided to dedicate this review solely to this topic. The types of additives embedded into the PES matrix can be divided into two main categories: (i) polymers and (ii) inorganic nanoparticles (NPs). The introduced polymers include polyvinylpyrrolidone, chitosan, polyamide, polyethylene oxide, and polyethylene glycol. The introduced nanoparticles discussed include titanium, iron, aluminum, silver, zirconium, silica, magnesium based NPs, carbon, and halloysite nanotubes. In addition, the applications of hydrophilic PES membranes are also reviewed. Reviewing the research progress in the hydrophilic modification of PES membranes is necessary and imperative to provide more insights for their future development and perhaps to open the door to extend their applications to other more challenging areas. IntroductionPolyethersulfone (PES) is a recognized polymeric material, which is widely employed in the fabrication of membranes for various applications. Due to its high glass transition temperature (225 C), and amorphous and transparent properties, PES possesses a high mechanical and hydrolytic stability, thermal and chemical resistance, and outstanding oxidative characteristics, 1 making it ideal for the preparation of asymmetric membranes with different surfaces and pore sizes. 1-3Asymmetric PES membranes are generally prepared via a phaseseparation method. The nal membrane properties and performance are inuenced by the composition (additives, View Article OnlineView Journal | View Issue concentration, and solvent), temperature of the doping solution, the non-solvent or the mixture of non-solvents, and the coagulation bath or the environment. 4 The risk of the fouling effect due to the high hydrophobicity of PES, especially in protein-contacting applications and aqueous ltrations, limits their wide applications.2,3 Numerous research studies have reported efforts to enhance the hydrophilicity of the PES membrane surface. 1,5Basically, the water contact angle (WCA) formed between the membrane-liquid boundary and liquid-gas tangent is generally employed to evaluate the hydrophilic properties of the membrane.6 Commercial PES membranes are hydrophobic in nature with high mechanical, chemical, and thermal stability. 7Usually, these membranes possesses high WCA values and are prone to solute adsorption from various feed streams. It has been well documented that membranes with hydrophilic surfaces are less prone to the fouling effect with microorganisms and organic substances due to: (i) a decreased interaction between the membrane surface and foulant, and (ii) no interaction of hydrogen bonds in the boundary layer betw...

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Section: -3mentioning

confidence: 99%

Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending

2018

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“…5 Poly(ether sulfone) (PES) has gained tremendous attention as a promising polymeric membrane material because of its outstanding chemical and physical properties (e.g., thermal stability, pressure, and heat resistance). 6,7 However, the inherent hydrophobicity of PES and the pressuredriven properties of ultrafiltration cause the poor antifouling properties of the ultrafiltration process with PES membranes. Membrane-fouling results from the deposition, adsorption, or adhesion of foulants such as protein molecules onto membranes, and the entrapment or aggregation of foulants in the pores can increase the hydraulic resistance to water flow and, thus, decrease the water permeability and economic efficiency.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of hydrophilic and antifouling poly(ether sulfone) ultrafiltration membranes modified with Zn–Al layered double hydroxides

Zhao

Yuan

et al. 2016

J of Applied Polymer Sci

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Zn-Al layered double hydroxide (LDH)-entrapped poly(ether sulfone) (PES) ultrafiltration membranes with four different weight percentages, 0.5, 1.0, 2.0, and 3.0%, were prepared by a phase-inversion method. Characterization by scanning electron microscopy, atomic force microscopy and contact angle (CA), equilibrium water content, porosity, average pore size, mechanical strength, and f potential measurement were used to evaluate the morphological structure and physical and chemical properties of membranes. Static protein adsorption, filtration, and rejection experiments were conducted to study the antifouling properties, water permeability, and removal ability of the modified membranes. The results show that significant change occurred in the membrane morphology and that better hydrophilicity, water permeability, and antifouling ability were also achieved for the PES/LDH membranes when a proper amount of LDH was used. For example, the CA value decreased from 66.60 to 50.218, and the pure water flux increased from 80.21 to 119.10 L m 22 h 21 bar 21 when the LDH loading was increased from 0 to 2.0 wt %.

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“…The PDMS membranes synthesized up to now and evaluated in gas separation applications were in the form of a single layer (Choi et al, 2007;Raharjo, 2007) or of a composite with a macroporous support (Wu, 2006;Yeow, 2002), or a mixed matrix (Kim et al, 2004). As a glassy polymer, PSf has some favorable characteristics such as wide operating temperature limits; maximum and optimum physical properties such as strength and flexibility; good toughness; easy fabrication in a wide variety of configurations and modules and relative low cost, which make it suitable for gas separation processes (Xu and Qusay, 2004;Shi et al, 2007;Rafiq et al, 2012). The fabrication parameters of PSf, significantly affect its morphology and separation performance.…”

Section: Introductionmentioning

confidence: 99%

Modification of PSf membrane nanostructure using different fabrication parameters and investigation of the CO2 separation properties of PDMS-coated PSf composite membranes

Pakizeh

Mansoori

Chenar

et al. 2013

Braz. J. Chem. Eng.

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-The effects of preparation parameters on the performance and morphology of polydimethylsiloxane/ polysulfone (PDMS/PSf) membranes were investigated. The PDMS layer is mainly used for sealing the defects of the PSf selective layer. The membrane morphologies were characterized by using scanning electron microscopy (SEM). The CO 2 /CH 4 separation performance of membranes was studied by a pure gas permeation experimental set up. According to the SEM results, decreasing the water/N,N-dimethylacetamide (DMAc) ratio as the coagulation medium from pure water to mixture of 90 vol.% DMAc and 10 vol.% water resulted in complete disappearance of macrovoids and also a lowering of the membrane selectivity. Permselectivity results showed that the ideal CO 2 /CH 4 separation factor of the membranes was improved by the presence of the non-solvent additive to the polymer solution. It was also observed that reduction of the coagulation bath temperature (CBT) led to elimination of macrovoids which affect gas separation performance. Using methanol as a coagulant resulted in a less selective membrane compared with ethanol and water as coagulants and the CO 2 permeance was about 3 and 9 times greater than with ethanol and water as coagulants, respectively.

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A facile method for synthesis of pegylated polyethersulfone and its application in fabrication of antifouling ultrafiltration membrane

Cited by 162 publications

References 34 publications

Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending

Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending

Preparation and characterization of hydrophilic and antifouling poly(ether sulfone) ultrafiltration membranes modified with Zn–Al layered double hydroxides

Modification of PSf membrane nanostructure using different fabrication parameters and investigation of the CO2 separation properties of PDMS-coated PSf composite membranes

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