Preparation of novel composite membranes: Reactive coating on microporous poly(ether imide) support membranes

Albrecht, Wolfgang; Schauer, Jan; Weigel, Th.; Lendlein, Andreas

doi:10.1016/j.memsci.2005.06.015

Cited by 17 publications

(7 citation statements)

References 47 publications

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“…This was a first indication for the formation of a relatively dense surface layer formed by the branched PETIM_60. These findings are in line with our previous work [32] and indicative for a blocking of pores in the case of PETIM_60, which could negatively influence the removal of wound exudates during the planned application of membranes as wound dressings.…”

Section: Discussionsupporting

confidence: 92%

Poly(ether imide) Membranes Modified with Poly(ethylene imine) as Potential Carriers for Epidermal Substitutes

Trimpert

Boese

Albrecht

et al. 2006

Macromolecular Bioscience

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Poly(ether imide) (PEI) membranes were modified with a linear low-molecular weight (PETIM_0.6) and a branched high-molecular weight poly(ethylene imine) (PETIM_60). The membrane surfaces became more hydrophilic and the zeta potentials were shifted from negative to positive zeta values after immobilisation of both PETIM. These measurements also indicated the presence of a swollen surface layer in the case of PETIM_60, while a regular structuring of the surface was observed with scanning force microscopy for PETIM_0.6. A human keratinocyte cell line HaCaT was cultured on the different membranes. It was found that HaCaT cell growth was stimulated by PETIM_0.6. Cells reached earlier confluence on this substratum, while their growth was inhibited on a PEI membrane modified with PETIM_60, which makes PEI membranes modified with PETIM_0.6 a promising material for in vitro culture of epidermal transplants.

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Section: Discussionsupporting

confidence: 92%

Poly(ether imide) Membranes Modified with Poly(ethylene imine) as Potential Carriers for Epidermal Substitutes

Trimpert

Boese

Albrecht

et al. 2006

Macromolecular Bioscience

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“…The mean surface roughness increased progressively by ZSM5 loading, more apparently at low loading. It has been reported by many researchers that embedding a small amount of nanoparticles into the soft polymer matrix increases the surface roughness of the membrane and in turn desirably enhances the hydrophobicity. , The effect of embedding ZSM nanoparticles of the membrane surface pore size was difficult to judge by SEM images; hence, the surface pore size and porosity evaluation was quantitatively made through the gas permeation test.…”

Section: Resultsmentioning

confidence: 99%

Zeolite ZSM5-Filled PVDF Hollow Fiber Mixed Matrix Membranes for Efficient Carbon Dioxide Removal via Membrane Contactor

Rezaei-DashtArzhandi

Ismail

Goh

et al. 2016

Ind. Eng. Chem. Res.

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ZSM5 zeolite-filled PVDF mixed matrix membranes (MMMs) were wet spun and used for CO2 absorption in a contactor system. The properties of ZSM5 were analytically characterized. SEM images revealed the fully asymmetric structure of membranes, in which the creation of finger-like macrovoids was promoted with increasing filler loading. A significant increase in gas permeance was observed, which was associated with the porosity increase of the membrane surface despite the decrease in surface pore size. The surface roughness, wettability resistance, and mechanical stability of membranes were also considerably improved by filler loading. A CO2 absorption test with water revealed a higher CO2 flux of MMMs than that of the plain membrane. Peak absorption flux of 5.80 × 10–3 mol m–2 s–1 was achieved at a liquid velocity of 1.2 m s–1 for 5 wt % ZSM5/PVDF membrane (MZ5), which was nearly 177% higher than that of neat PVDF and also surpassed that of several commercial and in-house made membranes. The mass transfer resistance of the MMMs was also considerably lower than that of PVDF.

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“…There are various contact angle values for PEI membranes in the literature [20,48,49]. Qtaishat et al (2009) [48] reported the contact angle of 80.04 o and 72.83° for top and bottom surfaces of PEI flat sheet membrane, respectively.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and characterization of porous polyetherimide/montmorillonite hollow fiber mixed matrix membranes for CO2 absorption via membrane contactor

DashtArzhandi

Ismail

Matsuura

et al. 2015

Chemical Engineering Journal

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Preparation of novel composite membranes: Reactive coating on microporous poly(ether imide) support membranes

Cited by 17 publications

References 47 publications

Poly(ether imide) Membranes Modified with Poly(ethylene imine) as Potential Carriers for Epidermal Substitutes

Poly(ether imide) Membranes Modified with Poly(ethylene imine) as Potential Carriers for Epidermal Substitutes

Zeolite ZSM5-Filled PVDF Hollow Fiber Mixed Matrix Membranes for Efficient Carbon Dioxide Removal via Membrane Contactor

Fabrication and characterization of porous polyetherimide/montmorillonite hollow fiber mixed matrix membranes for CO2 absorption via membrane contactor

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