Preparation and characterization of polysulfone-polyvinylpyrrolidone based membranes.

Munari, S.; Bottino, A.; Capannelli, G.; Moretti, Paolo; Bon, Pierre

doi:10.1016/0011-9164(88)85059-8

Cited by 48 publications

(20 citation statements)

References 5 publications

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“…Furthermore the presence of PEG increases this gap further due to the formation of macro voids on the membrane surface resulting from faster rate of leaching of PEG at higher concentration gradient from casting solution during gelation. Similar observations have also been observed by [28][29]. …”

Section: Permeate Flux and Membrane Hydraulic Resistancesupporting

confidence: 90%

Studies on Performance of Cellulose Acetate and Poly(Ethelene Glycol) Blend Ultrafiltration Membranes Using Mixture Design Concept of Design of Experiments

Arthanareeswaran

Muthukumar

Dharmendirakumar

et al. 2006

International Journal of Polymeric Materials and Polymeric Biom

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Section: Permeate Flux and Membrane Hydraulic Resistancesupporting

confidence: 90%

Studies on Performance of Cellulose Acetate and Poly(Ethelene Glycol) Blend Ultrafiltration Membranes Using Mixture Design Concept of Design of Experiments

Arthanareeswaran

Muthukumar

Dharmendirakumar

et al. 2006

International Journal of Polymeric Materials and Polymeric Biom

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“…The compatibility of polymers with additives can often play a significant role in the physical modification of the membrane‐forming polymer. The role of organic and inorganic additives, such as methyl cellulose, glycerin, poly(vinyl pyrrolidone), poly(ethylene glycol) (PEG), water, lithium chloride (LiCl), and zinc chloride (ZnCl 2 ), in casting solutions has been reported as a pore‐forming agent that enhances the permeation properties 4, 5. Among these additives, inorganic salts are promising candidates for the fabrication of membranes with an appropriate structure and high performance 6–11.…”

Section: Introductionmentioning

confidence: 99%

Novel method of synthesizing poly(ether sulfone) membranes containing two solvents and a lithium chloride additive and their performance

Ahmed

Idris

2009

J of Applied Polymer Sci

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The influence of a lithium chloride (LiCl) additive on poly(ether sulfone) (PES) membranes was investigated. A microwave technique was used to prepare membrane dope solutions, and two different types of solvent systems were used: single-solvent (SS) and double-solvent (DS) systems. In the SS system, PES was dissolved in N,N-dimethylformamide (DMF), and In the DS system, PES was dissolved in DMF and acetone. In the DS system, the control ratio of DMF to acetone was kept at 3.47, and the concentration of LiCl in both solvent systems was varied from 1 to 4 wt %. We observed that the microwave technique was able to dissolve the polymer rapidly, in less than 1 h. The performance of the PES membrane was evaluated in terms of poly(ethylene glycol) separation and molecular weight cutoff (MWCO). The results reveal that the presence of LiCl improved both the flux and rejection rates, and its concentration was best kept at 3 wt % for the tested conditions. In addition, we found that the mean pore size of the membranes produced from the DS system was smaller and the MWCO was lower as compared to the SS system.

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“…The addition of additive into the polymer solution is known to changing solvent capacity [40,41], phase inversion kinetics and thermodynamic properties [42]. The most widely used additive is polymers such as PEG and polyvinyl pyrolidone (PVP).…”

Section: Additivesmentioning

confidence: 99%

“…Another additive can be nonsolvent, inorganic salts, mineral filler, etc. Zheng et al studied effects of PEG introduction on kinetics of membrane formation [41]. From the experiment, it was found that PEG addition could enhance solution demixing thermodynamically and hindrance solution demixing rheologically.…”

Section: Additivesmentioning

confidence: 99%

Polysulfone membranes for CO2/CH4 separation: State of the art

Julian¹

2012

IOSRJEN

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The world market for CO 2 /CH 4 separation using membrane technology is getting bigger and polysulfone (PSf) is one of the most widely investigated polymer membrane materials. However, the existing PSf membranes performances are insufficient to fully exploit these opportunities. Therefore, modification that would produce membrane that fit the needs of target separation performances is a main issue. Firstly, various manufacturing processes to achieve best CO 2 /CH 4 separation performance are discussed, including important post-treatments. The formulation of polymer solution and effects of manufacturing parameters on the resulting membranes are presented. Other modifications, which involved PSf structure modification, PSf-based copolymer, mixed matrix membrane and facilitated transport membrane, are also discussed. Performances of those modified membranes are compared with the Robeson's upper bound and some modifications give satisfying results. Finally, commercial application of PSf membranes for CO 2 /CH 4 separation is discussed.

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Preparation and characterization of polysulfone-polyvinylpyrrolidone based membranes.

Cited by 48 publications

References 5 publications

Studies on Performance of Cellulose Acetate and Poly(Ethelene Glycol) Blend Ultrafiltration Membranes Using Mixture Design Concept of Design of Experiments

Studies on Performance of Cellulose Acetate and Poly(Ethelene Glycol) Blend Ultrafiltration Membranes Using Mixture Design Concept of Design of Experiments

Novel method of synthesizing poly(ether sulfone) membranes containing two solvents and a lithium chloride additive and their performance

Polysulfone membranes for CO2/CH4 separation: State of the art

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