Preparation and characterization of pH-sensitive polyethersulfone hollow fiber membranes modified by poly(methyl methylacrylate-co-4-vinyl pyridine) copolymer

Wang, Rui; Xiang, Tao; Yue, Wenwen; Li, Huijuan; Su, Liang; Sun, Shudong; Zhao, Changsheng

doi:10.1016/j.memsci.2012.08.022

Cited by 6 publications

(5 citation statements)

References 44 publications

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“…Poly(4-vinyl pyridine) (p(4-VP)) in the network structure can be synthesized in forms with homo or copolymeric nature by different monomers of various sizes e.g., in bulk at macro, and micro and nanometer scales [11][12][13][14][15]. The micro and nano size particles are commonly synthesized via microemulsion polymerization (MEP) [16], surfactant-free emulsion polymerization technique, suspension polymerization and so on [13,17].…”

Section: Introductionmentioning

confidence: 99%

Surface activity of amphiphilic cationic pH-responsive poly(4-vinylpyridine) microgel at air/water interface

Şahiner

Atta

Yasar

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Introductionmentioning

confidence: 99%

Surface activity of amphiphilic cationic pH-responsive poly(4-vinylpyridine) microgel at air/water interface

Şahiner

Atta

Yasar

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…Molecules 2024, 29, x FOR PEER REVIEW 11 of 21 capillary membrane had excellent pH sensitivity and pH reversibility. Moreover, the membrane had good Cu 2+ ion adsorption properties [67]. New Matrimid ® 5218/PEG or PEO-PDMS-blend capillary membranes were developed for gas separation.…”

Section: Preparation Of Multi-component Membranes 221 Blend Membrane ...mentioning

confidence: 99%

“…The two polymers are dissolved and mixed in solution. Most often, a hydrophilic polymer is added to the hydrophobic polymer to increase flux through the membrane [ 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 ].…”

Section: Hollow-fiber Membrane Preparationmentioning

confidence: 99%

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A Comprehensive Review of Hollow-Fiber Membrane Fabrication Methods across Biomedical, Biotechnological, and Environmental Domains

Wojciechowski,

Wasyłeczko,

Lewińska

et al. 2024

Molecules

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This work presents methods of obtaining polymeric hollow-fiber membranes produced via the dry–wet phase inversion method that were published in renowned specialized membrane publications in the years 2010–2020. Obtaining hollow-fiber membranes, unlike flat membranes, requires the use of a special installation for their production, the most important component of which is the hollow fiber forming spinneret. This method is most often used in obtaining membranes made of polysulfone, polyethersulfone, polyurethane, cellulose acetate, and its derivatives. Many factors affect the properties of the membranes obtained. By changing the parameters of the spinning process, we change the thickness of the membranes’ walls and the diameter of the hollow fibers, which causes changes in the membranes’ structure and, as a consequence, changes in their transport/separation parameters. The type of bore fluid affects the porosity of the inner epidermal layer or causes its atrophy. Porogenic compounds such as polyvinylpyrrolidones and polyethylene glycols and other substances that additionally increase the membrane porosity are often added to the polymer solution. Another example is a blend of two- or multi-component membranes and dual-layer membranes that are obtained using a three-nozzle spinneret. In dual-layer membranes, one layer is the membrane scaffolding, and the other is the separation layer. Also, the temperature during the process, the humidity, and the composition of the solution in the coagulating bath have impact on the parameters of the membranes obtained.

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“…All responsive membranes have channels able to self-regulate their permselectivity in response to environmental stimuli, such as temperature, pH, specific molecules/ions, light, electric/magnetic fields, ionic strength, and redox reactions [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. A common method to add responsiveness to a membrane is the use of stimuli-responsive polymers, copolymers and mixtures of polymers and additives during or after the membrane formation [ 19 ].…”

Section: Electro-conductive Membranesmentioning

confidence: 99%

Electro-Conductive Membranes for Permeation Enhancement and Fouling Mitigation: A Short Review

et al. 2017

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The research on electro-conductive membranes has expanded in recent years. These membranes have strong prospective as key components in next generation water treatment plants because they are engineered in order to enhance their performance in terms of separation, flux, fouling potential, and permselectivity. The present review summarizes recent developments in the preparation of electro-conductive membranes and the mechanisms of their response to external electric voltages in order to obtain an improvement in permeation and mitigation in the fouling growth. In particular, this paper deals with the properties of electro-conductive polymers and the preparation of electro-conductive polymer membranes with a focus on responsive membranes based on polyaniline, polypyrrole and carbon nanotubes. Then, some examples of electro-conductive membranes for permeation enhancement and fouling mitigation by electrostatic repulsion, hydrogen peroxide generation and electrochemical oxidation will be presented.

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Preparation and characterization of pH-sensitive polyethersulfone hollow fiber membranes modified by poly(methyl methylacrylate-co-4-vinyl pyridine) copolymer

Cited by 6 publications

References 44 publications

Surface activity of amphiphilic cationic pH-responsive poly(4-vinylpyridine) microgel at air/water interface

Surface activity of amphiphilic cationic pH-responsive poly(4-vinylpyridine) microgel at air/water interface

A Comprehensive Review of Hollow-Fiber Membrane Fabrication Methods across Biomedical, Biotechnological, and Environmental Domains

Electro-Conductive Membranes for Permeation Enhancement and Fouling Mitigation: A Short Review

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