Composite membranes from polyacrylonitrile with poly(N,N-dimethylaminoethyl methacrylate)-grafted silica nanoparticles as additives

Zhi, Suo-Hong; Deng, Ronghai; Xu, Jun; Wan, Ling‐Shu; Xu, Zhi‐Kang

doi:10.1016/j.reactfunctpolym.2014.09.004

Cited by 27 publications

(17 citation statements)

References 47 publications

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“…As expected, these results confirm the increased hydrophilicity of the pGO-PS- b -P4VP membrane. This can be ascribed to the GO nanosheets and the tertiary amine in PDMAEMA, which are capable of binding water to form a stable hydration layer on the membrane surfaces . The improved surface hydrophilicity of the pGO-PS- b -P4VP membrane was previously shown to be associated with enhanced surface roughness, as visualized by AFM imaging …”

Section: Resultsmentioning

confidence: 94%

Rapid Size-Based Protein Discrimination inside Hybrid Isoporous Membranes

Shevate

Kumar

Cheng

et al. 2019

ACS Appl. Mater. Interfaces

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Owing to their unique morphology, isoporous membranes derived from block copolymers (BCPs) have rapidly advanced the process of macromolecular separation. In such separations, fouling is the most daunting challenge, affecting both the permeability and selectivity of high-performance isoporous membranes. To overcome this, we increase the hydrophilicity of nanostructured BCP isoporous membranes by incorporating hydrophilic polymer-grafted graphene oxide nanosheets into them. Due to the synergy of these two highly functional components, the hybrid isoporous membranes show pH-responsive and alcohol-gating behaviors, along with improved bactericidal capabilities. Leveraging the high permeability and selectivity behavior of BCP isoporous membranes together with the antifouling capabilities imparted by the polymer-grafted graphene oxide nanosheets, we achieved the highest separation factor (33) ever obtained during the ultrafiltration of the common blood proteins bovine serum albumin and immunoglobulin. This was accompanied by a 60% enhanced flux compared to that of the pristine BCP membranes during this challenging size-based separation of a protein mixture. We surmise that such fouling-resistant hybrid isoporous membranes with rationally functionalized filler materials can be used to replace existing membranes for specific energy-efficient bioseparation applications with improved performance.

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Section: Resultsmentioning

confidence: 94%

Rapid Size-Based Protein Discrimination inside Hybrid Isoporous Membranes

Shevate

Kumar

Cheng

et al. 2019

ACS Appl. Mater. Interfaces

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“…As one kind of important engineering polymer, Polyacrylonitrile (PAN) possess solvent resistance, chemical stability, thermal and mechanical stability, high tensile strength and good insect resistance [23,24]. It has attracted more and more researchers to explore the PAN as PCM packaging material in recent years [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and thermal properties of cross-linked poly(acrylonitrile-co-itaconate)/polyethylene glycol as novel form-stable change material

Guo

et al. 2016

Energy Conversion and Management

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“…Figure depicts the ATR‐FTIR spectra of PAN and PAN/PF127 membranes. The typical peak associated with nitrile (CN stretching) is observed at 2245 cm −1 in both PAN and PAN/PF127 membranes . After the addition of PF127, significant changes in the spectra of PAN films can be noted.…”

Section: Resultsmentioning

confidence: 95%

Customized antifouling polyacrylonitrile ultrafiltration membranes for effective removal of organic contaminants from aqueous stream

Melbiah

Joseph

Rana

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND: Ultrafiltration (UF) is a promising separation technique for the removal of macromolecular contaminants. However, the hydrophobic polymeric UF membrane performance suffers from fouling in the long run due to clogging by contaminants at the surface and pores. In this study, anti-fouling hydrophilic polyacrylonitrile (PAN) UF membranes in the presence of an amphiphilic triblockcopolymer, Pluronic F127 (PF127) were prepared via a phase inversion technique. RESULTS: The effect of varying concentrations of PF127 on PAN UF membranes was analyzed by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The filtration characteristics of the membranes were measured in terms of pure water flux, membrane porosity and water content. The separation efficiency of the membranes is explored for contaminants such as bovine serum albumin (BSA), humic acid (HA) and oil. The results revealed that the PAN membrane with 4 wt% of PF127 produced greatest permeate flux of 391 L m −2 h −1 with minimal fouling. A higher solute rejection of more than 90% was observed for the tailored membranes due to the improvement in surface properties. CONCLUSION:The inherent hydrophilicity of the high density poly (ethylene oxide) brush-like layer of PF127 at the membrane-water interface is utilized effectively to restrict the adsorption of the organic contaminants onto the membrane surface. After simple hydraulic washing of PAN/PF127 UF membranes, the flux recovery ratio was augmented which is ascribed to their excellent antifouling property and potential use in water treatment. Reversible flux decline, DRrTotal flux decline,J Chem Technol Biotechnol 2019; 94: 859-868 Pure water permeationPure water flux is considered to be the key factor for any UF membrane. The pure water flux profile obtained for the various J Chem Technol Biotechnol 2019; 94: 859-868

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Composite membranes from polyacrylonitrile with poly(N,N-dimethylaminoethyl methacrylate)-grafted silica nanoparticles as additives

Cited by 27 publications

References 47 publications

Rapid Size-Based Protein Discrimination inside Hybrid Isoporous Membranes

Rapid Size-Based Protein Discrimination inside Hybrid Isoporous Membranes

Synthesis and thermal properties of cross-linked poly(acrylonitrile-co-itaconate)/polyethylene glycol as novel form-stable change material

Customized antifouling polyacrylonitrile ultrafiltration membranes for effective removal of organic contaminants from aqueous stream

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