Modeling of asymmetric membrane formation by a combination of dry/wet phase inversion processes

Altınkaya, Sacide Alsoy

doi:10.1016/j.desal.2006.03.200

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…Since then, this technique has caused vigorous growth in membrane technology. In phase inversion technique, a homogenous polymer solution becomes thermo-dynamically unstable and separates between polymer-rich and polymerlean phases [59]. Recently, cellulose acetate (CA) hybrid membrane was synthesized with enhanced permeability and excellent anti-fouling property was fabricated by combination of phase inversion and chemical reaction.…”

Section: Phase Inversionmentioning

confidence: 99%

Materials and Applications for Functional Polymer Membranes

Sabee

2022

Materials Research Foundations

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This chapter covers an inclusive overview of the polymeric membranes with advanced functions in numerous applications such as water and gas separation, medical and emerging technologies include fuel cells, lithium-ions batteries, electroconductive, and optoelectronics. The membrane’s performance and behavior in terms of selectivity, permeability, and separation process for these applications are determined by the materials used in the membrane’s construction. Thus, in this chapter, the potential of different polymers for functional membranes are discussed including their applications based on their suitability in terms of types, fabrications, and mechanisms. For each application, the polymer membrane technology, the challenges, and the future direction are also discussed. The membrane technology is also always evolving, especially the development of functional polymer membranes for a variety of applications, so that quality of life is improved.

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Section: Phase Inversionmentioning

confidence: 99%

Materials and Applications for Functional Polymer Membranes

Sabee

2022

Materials Research Foundations

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“…The layers of composite membranes are normally made up of different materials and are prepared in different operations. The thin film composite membrane was first developed by Cadotte et al at Film Tech Co. USA during the 1970's via interfacial polymerization of two reactive monomers dissolved in two immiscible solutions on the top of polysulfone support (UF membrane) [54,55].…”

Section: Composite Membranesmentioning

confidence: 99%

Methods for separation of organic and pharmaceutical compounds by different polymer materials

Ingole

2014

Korean J. Chem. Eng.

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The discrimination of enantiomers is a challenging task in separation technology, and using a membrane is most promising for separating enantiomers from racemic mixture. The optical resolution of chiral compounds is of interest to researchers working in a variety of fields from analytical, organic and medicinal chemistry, to pharmaceutics and materials, to process engineering for fabricating pharmaceuticals, agrochemicals, fragrances and foods, and so on. There is considerable demand for separation techniques appropriate for the large-scale resolution of chiral molecules. The separation of chiral compounds using chiral or achiral/non-chiral polymeric membranes with or without chiral selector represents a promising system for future commercial applications. This review focuses on an active field of chiral separation, membrane-based enantioseparation technique, which has potential for large-scale production of singleenantiomers. Enantiomeric separation by membrane processes has been studied using various configurations of liquid and solid polymer membranes. Selectivity and permeability of liquid-membranes is reasonably good because the rate of diffusion of solute molecules is high in liquids but has inferior durability and stability. Solid polymer membranes have inferior permeability because diffusion of solute through solids is slow but quite stable and durable; however, commercial application of membrane technology for optical resolution is yet to be realized. Several chiral separation membranes were prepared from chiral polymers where enantioselectivity was generated from chiral carbons in the main chain. However, it is rather tricky to generate excellent chiral separation membranes from chiral polymers alone, because racemic penetrants mainly encounter the flexible side chains of the membrane polymers.

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“…Asymmetric porous membranes invented by Loeb and Sourirjan, [5] are the most commercially available membranes in the present day. The structure of asymmetric membranes is a defect-free skin layer based on a porous layer [4].…”

Section: -Introductionmentioning

confidence: 99%

“…The process starts with polymer solution thermodynamically unstable by one of FOUR methods; immersion precipitation, vapor induced phase separation, thermally induced phase separation, and dry casting, which leads to polymer separation to polymer lean create pores and voids and polymer-rich phases the porous structure of membrane [4][5][6]. Fig.…”

Section: -Introductionmentioning

confidence: 99%

Studying and Analyzing Operating Conditions of Hollow Fiber Membrane Preparation Process

Rashad

2022

IJCPE

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Polymeric hollow fiber membrane is produced by a physical process called wet or dry/wet phase inversion; a technique includes many steps and depends on different factors (starting from selecting materials, end with post-treatment of hollow fiber membrane locally manufactured). This review highlights the most significant factors that affect and control the characterization and structure of ultrafiltration hollow fiber membranes used in different applications. Three different types of polymers (polysulfone PSF, polyethersulfone PES or polyvinyl chloride PVC) were considered to study morphology change and structure of hollow fiber membranes in this review. These hollow fiber membranes were manufactured with different process conditions and a reasonable starting point for factors remained constant to study the changing effect of specific factors.

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Modeling of asymmetric membrane formation by a combination of dry/wet phase inversion processes

Cited by 7 publications

References 5 publications

Materials and Applications for Functional Polymer Membranes

Materials and Applications for Functional Polymer Membranes

Methods for separation of organic and pharmaceutical compounds by different polymer materials

Studying and Analyzing Operating Conditions of Hollow Fiber Membrane Preparation Process

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