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

Bera, Anupam; Kumar, Chinta Uday; Parui, Partha Pratim; Jewrajka, Suresh K.

doi:10.1016/j.memsci.2015.01.026

Cited by 46 publications

(20 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our FRR after one cycle is comparable to that obtained by Abed et al with PVDF-g-POEM but they designed hollow-fiber membranes so that accurate comparisons cannot really be made [47]. In addition the P20-TB5 membrane generates a lower irreversible fouling ratio than the best one reported by Bera et al in their report on antifouling PVDF membranes prepared from blends [48].…”

Section: Resistance Of Pegylated Membranes To Biofouling In Dynamic Csupporting

confidence: 77%

Design of PVDF/PEGMA-b-PS-b-PEGMA membranes by VIPS for improved biofouling mitigation

Carretier

Chen

Venault

et al. 2016

Journal of Membrane Science

View full text Add to dashboard Cite

OATAO is an open access repository that collects the work of some Toulouse researchers and makes it freely available over the web where possible. This is an author's version published in: a b s t r a c t Literature on the design of efficient nonfouling membranes by in-situ modification is poor, which can be explained by the difficulty to control membrane formation mechanisms when a third material is added to the casting solution, or by the lack of stability of matrix polymers with surface-modifiers. We present polyvinylidene fluoride membranes formed by vapor-induced phase separation and modified with a tri-block copolymer of poly(styrene) and poly(ethylene glycol) methacrylate moieties (PEGMA 124 -b-PS 54 -b-PEGMA 124 ). After characterizing the copolymer, we move onto membrane formation mechanisms. Membrane formation is well controlled and leads to structure close to bi-continuous. Considering the formulation chosen, PVDF/PEGMA 124 -b-PS 54 -b-PEGMA 124 solutions are less viscous and more hydrophilic than virgin PVDF solutions. Both effects promote non-solvent transfer, thus decreasing the chances for crystallization. Hydrophilic capability of membranes is increased from about 59 mg/cm 3 to 650 mg/cm 3 , leading to a severe drop of non-specific protein adsorption, up to 85-90%, also depending on its nature. Biofouling at the micro-scale by modified Escherichia coli and Streptococcus mutans is almost totally inhibited. Finally, biofouling is importantly reduced in dynamic conditions, as measured from the water flux recovery ratio of 69.4%, after 3 water-BSA filtration cycles, much higher than with a commercial hydrophilic PVDF membrane (47.3%). These membranes hold promise as novel materials for water-treatment or blood filtration. n Corresponding authors.

show abstract

Section: Resistance Of Pegylated Membranes To Biofouling In Dynamic Csupporting

confidence: 77%

Design of PVDF/PEGMA-b-PS-b-PEGMA membranes by VIPS for improved biofouling mitigation

Carretier

Chen

Venault

et al. 2016

Journal of Membrane Science

View full text Add to dashboard Cite

show abstract

“…PVDF membranes have also been functionalized with poly- N -isopropylacrylamide (PNIPAm) to create temperature-responsive surfaces and pores. ,,, PNIPAm is a lower critical solution temperature (LCST) polymer that exhibits a phase transition from hydrophilic state to hydrophobic state at an LCST of 32 °C. By increasing the temperature, the property changes in the polymer chains affect the hydrogen bonding with water molecules, causing the chains to transition and collapse in water. , PNIPAm’s hydrophobicity can therefore be controlled using temperature variations, thereby enabling control over adsorption of organic compounds .…”

Section: Introductionmentioning

confidence: 99%

Thermoresponsive PNIPAm–PMMA-Functionalized PVDF Membranes with Reactive Fe–Pd Nanoparticles for PCB Degradation

Saad

Mills

Wan

et al. 2020

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Fe−Pd nanoparticles are immobilized in stimuliresponsive poly-N-isopropylacrylamide (PNIPAm)-and polymethyl methacrylate-functionalized polyvinylidene fluoride membranes using ion exchange for 2-chlorobiphenyl (PCB-1) degradation via the reductive pathway. PNIPAm is introduced into the reactive membrane system, and its thermoresponsive behavior is leveraged to enhance PCB-1 diffusion and adsorption into the reactive domain. The surface area-normalized rate constant (k SA ) values were determined in the convective flow mode to be 0.13, 0.28, 0.72, and 1.36 L/m 2 /g at 15, 25, 35, and 45 °C, respectively, with an activation energy of 60 kJ/mol (3 wt % Pd). The diffusion coefficients for PCB-1 were 6.6 × 10 −11 and 8.7 × 10 −11 m 2 /s at 25 and 35 °C, respectively. The adsorption of PCB-1 onto PNIPAm hydrogels also increased from 40 to 70% as the temperature was increased above its lower critical solution temperature of 32 °C. The batch-mode k SA values were 0.12 L/m 2 /h at 25 °C and 0.35 L/m 2 /h at 35 °C.

show abstract

“…When applied in a combinatorial way as polymer arrays, 22 acrylates and methacrylates were tested towards the accumulation of pathogenic freshwater bacteria, and several interesting polymers, such as ethylene glycol dicyclopentenyl ether acrylate (DCPEA), with very low fouling properties were discovered . In many cases, acrylates and methacrylates are copolymerized into amphiphilic polymers. − Poly(ethylene glycol)-fluoroalkyl acrylates copolymerized with, for example, poly(dimethyl siloxane) methacrylates effectively reduce the settlement of barnacle cyprids and facilitate the removal of sporelings of the green algae Ulva linza . Carboxybetaine methacrylate (CBMA) embedded in DCPEA were effective amphiphilic polymers to counteract attachment by Navicula perminuta and other marine organisms .…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic Zwitterionic Acrylate/Methacrylate Copolymers for Marine Fouling-Release Coatings

et al. 2021

View full text Add to dashboard Cite

Methacrylate and acrylate monomers are popular building blocks for antifouling (AF) and fouling-release (FR) coatings to counteract marine biofouling. They are used in various combinations and often combined into amphiphilic materials. This study investigated the FR properties of amphiphilic ethylene glycol dicyclopentenyl ether acrylate (DCPEA) and the corresponding methacrylate (DCPEMA) blended with 5 wt % zwitterionic carboxybetaine acrylate (CBA) and the corresponding methacrylate (CBMA). A series of (co)polymers with different acrylate/methacrylate compositions were synthesized and tested against the attachment of the diatom Navicula perminuta and in short-term dynamic field exposure experiments. The more hydrophobic methacrylate DCPEMA homopolymer outperformed its acrylate counterpart DCPEA. Incorporated zwitterionic functionality of both CBMA and CBA imparted ultralow fouling capability in the amphiphilic polymers toward diatom attachment, whereas in the real ocean environment, only the employment of CBMA reduced marine biofouling. Moreover, it was observed that CBA-containing coatings showed different surface morphologies and roughnesses compared to the CBMA analogues. Particularly, a high impact was found when acrylic CBA was mixed with methacrylic DCPEMA. While the wettability of the coatings was comparable, investigated methacrylates in general exhibited superior fouling resistance compared to the acrylates.

show abstract

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

Cited by 46 publications

References 40 publications

Design of PVDF/PEGMA-b-PS-b-PEGMA membranes by VIPS for improved biofouling mitigation

Design of PVDF/PEGMA-b-PS-b-PEGMA membranes by VIPS for improved biofouling mitigation

Thermoresponsive PNIPAm–PMMA-Functionalized PVDF Membranes with Reactive Fe–Pd Nanoparticles for PCB Degradation

Amphiphilic Zwitterionic Acrylate/Methacrylate Copolymers for Marine Fouling-Release Coatings

Contact Info

Product

Resources

About