Polysiloxaneimide membranes for removal of VOCs from water by pervaporation

Chang, Yeon-Hee; Kim, Jeong-Hoon; Lee, Soo-Bok; Rhee, Hee‐Woo

doi:10.1002/1097-4628(20000919)77:12<2691::aid-app170>3.0.co;2-q

Cited by 21 publications

(16 citation statements)

References 20 publications

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“…Similar observations were found by Lau et al [40] and Chang et al [41], namely a clear increase of the membrane selectivity caused by an increase of the downstream pressure in the pervaporative separation of organics/water mixtures. Moreover, a linear dependency of the enrichment factor with the downstream pressure was found, which is in agreement with our findings.…”

Section: Selectivity Factor and Enrichment Factorsupporting

confidence: 87%

“…(8) a better separation efficiency is thus expected as the permeate pressure is increased. Both partial fluxes will decrease due to a lower driving force, the effect however being more pronounced for water, as confirmed by several authors [39][40][41].…”

Section: Introductionsupporting

confidence: 69%

“…Chang et al [41] observed a similar effect and explained it by the relative volatility between the two components. According to the authors, increasing the permeate pressure, leads to an increase in desorption resistance of all components at the permeate side.…”

Section: Total and Partial Fluxmentioning

confidence: 99%

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Pervaporation performance of unfilled and filled PDMS membranes and novel SBS membranes for the removal of toluene from diluted aqueous solutions

Chovau

Dobrak

Figoli

et al. 2010

Chemical Engineering Journal

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Section: Selectivity Factor and Enrichment Factorsupporting

confidence: 87%

Section: Introductionsupporting

confidence: 69%

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Pervaporation performance of unfilled and filled PDMS membranes and novel SBS membranes for the removal of toluene from diluted aqueous solutions

Chovau

Dobrak

Figoli

et al. 2010

Chemical Engineering Journal

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“…Polyorganosiloxanes are a class of polymers that have attracted the interest of many researchers because of their versatility for tailoring materials with different properties 1. Some of the emerging applications of polysiloxane‐containing materials include their pyrolytic conversion in ceramic bodies2–5 and their use as membranes for different applications 6–15…”

Section: Introductionmentioning

confidence: 99%

Partially pyrolyzed poly(dimethylsiloxane)‐based networks: Thermal characterization and evaluation of the gas permeability

José

Prado

Schiavon

et al. 2006

J Polym Sci B Polym Phys

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In this investigation, the preparation and characterization of partially pyrolyzed membranes based on poly(dimethylsiloxane) (PDMS) are described. These membranes were obtained by the crosslinking of silanol‐terminated PDMS with multifunctional nanoclusters derived from the reaction of pentaerythritoltriacrylate with 2‐aminoethyl‐3‐aminopropyltrimethoxysilane and the in situ polycondensation of tetraethylortosilicate, followed by the thermal treatment of the resulting membranes at different temperatures. The partially pyrolyzed membranes were characterized with infrared spectroscopy, thermogravimetry, elemental analyses, dynamic mechanical analysis, small‐angle X‐ray scattering, and scanning electron microscopy. The membranes exhibited improvements in the thermal stability and mechanical strength. Even with distinct compositions with respect to the Si/O and Si/C ratios, the flexibility of these materials was maintained. The flux rates of the gases through the membranes were measured for N2, H2, O2, CH4, and CO2, at 25 °C. The permeability of the membranes changed with increases in the pyrolysis and oxidation temperatures. These membranes could be described as PDMS chains separated by inorganic clusters. © 2006 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 299–309, 2007.

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“…Many studies have been performed on the separation of organic aqueous solutions by pervaporation (PV) . PV is a liquid separation technique and has attracted attention as a useful way for the removal of organic matters from wastewater.…”

Section: Introductionmentioning

confidence: 95%

PEBA/PVDF blend pervaporation membranes: preparation and performance

Soloukipour

Saljoughi

Mousavi

et al. 2016

Polymers for Advanced Techs

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In the present research, novel polyether block amide (PEBA)/polyvinyldene fluoride (PVDF) blend pervaporation (PV) membranes were prepared for the removal of isopropyl alcohol (IPA) from the aqueous solution. The membranes obtained at PEBA/PVDF ratios of 100/0, 95/5, and 90/10 were characterized using scanning electron microscopy, thermogravimetric analysis, water contact angle measurement, and tensile test. Moreover, the PV performance of the membranes was assessed via separation of IPA from the aqueous solution. The blended membranes exhibited higher hydrophobicity and separation factor as well as lower permeability in comparison with the pure PEBA membrane. The blended membrane that was prepared at PEBA/PVDF ratio of 95/5 was found as the optimum membrane providing PV separation index of 3171 that appeared to be the maximum value. Copyright © 2016 John Wiley & Sons, Ltd.

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Polysiloxaneimide membranes for removal of VOCs from water by pervaporation

Cited by 21 publications

References 20 publications

Pervaporation performance of unfilled and filled PDMS membranes and novel SBS membranes for the removal of toluene from diluted aqueous solutions

Pervaporation performance of unfilled and filled PDMS membranes and novel SBS membranes for the removal of toluene from diluted aqueous solutions

Partially pyrolyzed poly(dimethylsiloxane)‐based networks: Thermal characterization and evaluation of the gas permeability

PEBA/PVDF blend pervaporation membranes: preparation and performance

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