Temperature- and pH-responsive membranes based on poly (vinylidene fluoride) functionalized with microgels

Chen, Xi; He, Yang; Shi, Congcong; Fu, Weigui; Bi, Shiyin; Wang, Zeya; Chen, Li

doi:10.1016/j.memsci.2014.07.005

Cited by 46 publications

(26 citation statements)

References 47 publications

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“…(1)), the permeate flux (J p ) during UF of BSA was measured in stirred UF cell (200 rpm). BSA (500 mg/L) was dissolved in phosphate buffer (PB) solution (0.1 mol/L) of pH 5, 7 and 8.5 respectively to measure the permeate flux during protein filtration at 0.17 MPa applied pressure [21,32]. After BSA filtration for 3 h, membrane swatches were washed thoroughly with deionized water for 10 min in the stirred cell (200 rpm) and pure water fluxes (J c ) of the cleaned membranes were measured again to obtain FRR (%) by the following equation: and all the blend solutions (total 15%, w/w) were ca.…”

Section: Protein Antifouling Experiments and Protein Rejectionmentioning

confidence: 99%

“…Porosity and pore radius of the membranes The porosity (ε) was determined by the gravimetric method, as defined by the following equation [21]:…”

Section: Protein Antifouling Experiments and Protein Rejectionmentioning

confidence: 99%

“…On the other hand, PVDF-B1 (plot b) and PVDF-BC1 (plot b 0 ) exhibited positive effect on permeate flux (flux enhancement 62-65%) when feed pH was lowered from 7 to 5. At lower pH, the PMMA-co-PAA and PMMA-co-PAA-co-PNIPAM in the PVDF-B1 and PVDF-BC1 undergo compaction due to de-ionization of AA units [18,21]. Thus at lower pH the pore opening takes place in the membranes containing PAA as one of the polymer component.…”

Section: Ph and Temperature Responsive Pure Water Flux And Peo Rejectionmentioning

confidence: 99%

“…As a result, fluxes of the membranes decrease. The temperature responsive behaviour of PNIPAM was described elsewhere [18,21,22,37]. It is seen that the effect of temperature is more pronounced in PVDF-C1 (117% flux enhancement from temperature 25 1C to 35 1C, plot c) than that of AC1 (30% flux enhancement plot a 0 ) and BC1 (ca.…”

Section: Ph and Temperature Responsive Pure Water Flux And Peo Rejectionmentioning

confidence: 99%

“…by incorporation of Fe 3 O 4 nanoparticles [20]. Both pH and temperature responsive PVDF-based membranes with improved antifouling property were prepared by blending PVDF and responsive polymer gel particles [21]. Temperature responsive polyethylene-based membranes were prepared by a plasma-graft pore-filling polymerization method [22].…”

Section: Introductionmentioning

confidence: 99%

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Stimuli responsive and low fouling ultrafiltration membranes from blends of polyvinylidene fluoride and designed library of amphiphilic poly(methyl methacrylate) containing copolymers

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Section: Protein Antifouling Experiments and Protein Rejectionmentioning

confidence: 99%

“…Porosity and pore radius of the membranes The porosity (ε) was determined by the gravimetric method, as defined by the following equation [21]:…”

Section: Protein Antifouling Experiments and Protein Rejectionmentioning

confidence: 99%

Section: Ph and Temperature Responsive Pure Water Flux And Peo Rejectionmentioning

confidence: 99%

Section: Ph and Temperature Responsive Pure Water Flux And Peo Rejectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stimuli responsive and low fouling ultrafiltration membranes from blends of polyvinylidene fluoride and designed library of amphiphilic poly(methyl methacrylate) containing copolymers

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Surface‐Bound Microgels for Separation, Sensing, and Biomedical Applications

Cutright

Harris

Ramesh

et al. 2021

Adv Funct Materials

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This study presents a comprehensive survey of microgel-coated materials and their functional behavior, describing the complex interplay between the physicochemical and mechanical properties of the microgels and the chemical and morphological features of substrates. The cited literature is articulated in four main sections: i) properties of 2D and 3D substrates, ii) synthesis, modification, and characterization of the microgels, iii) deposition techniques and surface patterning, and iv) application of microgel-coated surfaces focusing on separations, sensing, and biomedical applications. Each section discussesby way of principles and examples -how the various design parameters work in concert to deliver functionality to the composite systems. The case studies presented herein are viewed through a multi-scale lens. At the molecular level, the surface chemistry and the monomer make-up of the microgels endow responsiveness to environmental and artificial physical and chemical cues. At the micro-scale, the response effects shifts in size, mechanical, and optical properties, and affinity towards species in the surrounding liquid medium, ranging from small molecules to cells. These phenomena culminate at the macro-scale in measurable, reversible, and reproducible effects, aiming in a myriad of directions, from lab-scale to industrial applications.

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Temperature- and pH-responsive membranes based on poly (vinylidene fluoride) functionalized with microgels

Cited by 46 publications

References 47 publications

Stimuli responsive and low fouling ultrafiltration membranes from blends of polyvinylidene fluoride and designed library of amphiphilic poly(methyl methacrylate) containing copolymers

Stimuli responsive and low fouling ultrafiltration membranes from blends of polyvinylidene fluoride and designed library of amphiphilic poly(methyl methacrylate) containing copolymers

Filtration Membranes with Responsive Gates

Surface‐Bound Microgels for Separation, Sensing, and Biomedical Applications

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