Hydrophilically surface-modified and crosslinked polybenzimidazole membranes for pervaporation dehydration on tetrahydrofuran aqueous solutions

Han, Yi-Jen; Su, Wu‐Chung; Lai, Juin‐Yih; Liu, Ying‐Ling

doi:10.1016/j.memsci.2014.10.050

Cited by 28 publications

(10 citation statements)

References 54 publications

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“…The success of the pervaporation process depends on the morphology of membrane and its properties. Membranes with good selectivity (α wt ) and high permeability are desirable for the better separation of solvent mixtures . Recently, silica–polymer hybrid membranes are found to be useful in the drug release and separation of azeotropic liquid mixtures because of their unique transport properties, which are not present in the individual components …”

Section: Introductionmentioning

confidence: 99%

Pervaporation separation of an azeotropic mixture of a tetrahydrofuran–water system with nanostructured polyhedral oligomeric silsesquioxane embedded poly(vinyl alcohol)

Swapna

Jose²,

George³

et al. 2018

J of Applied Polymer Sci

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Cage -structured polyhedral oligomeric silsesquioxane (POSS) molecules were used as modifiers in the fabrication of poly (vinyl alcohol) (PVA) membrane for the separation of an azeotropic mixture of tetrahydrofuran (THF) and water system. Poly(ethylene glycol) and anionic octa(tetramethyl ammonium)-functionalized POSS were used for this study. The membranes exhibited excellent water selectivity and permeance because of their preferential interactions toward water molecules in the azeotropic THF-water mixture.In the presence of poly(ethylene glycol)-POSS and anionic octa(tetramethyl ammonium)-POSS, the PVA membrane exhibited a significant increase in selectivity. A modified Maxwell-Stefan equation was used for the computation of the theoretical flux, which was compared with the experimental values.

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Section: Introductionmentioning

confidence: 99%

Pervaporation separation of an azeotropic mixture of a tetrahydrofuran–water system with nanostructured polyhedral oligomeric silsesquioxane embedded poly(vinyl alcohol)

Swapna

Jose²,

George³

et al. 2018

J of Applied Polymer Sci

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“…These types of thermally reversible crosslinked polymers have been widely observed to demonstrate self-healing properties. 4,29,34 In Fig. 5, the self-healing property of the prepared CR-PBI membrane is examined.…”

Section: Resultsmentioning

confidence: 99%

“…A relatively low permeation ux of the CR-PBI membrane is commonly observed with crosslinked polymer membranes; this characteristic could be enhanced with hydrophilic surface modication, as reported in our previous studies. 28,29 CR-PBI has been applied to pervaporation dehydration on isopropanol aqueous solutions in various concentrations and at different temperatures (Fig. 8).…”

Section: Self-healing Cr-pbi Membrane For Pervaporation Applicationmentioning

confidence: 99%

“…Polybenzimidazole (PBI)-based membranes exhibited considerable potential for pervaporation dehydration on organic solvents, and were therefore utilized as matrix membranes in this work. [24][25][26][27][28][29] The self-healing property was introduced to the PBI membrane by building a reversible crosslinked structure. 4 PBI chains were rst functionalized using furan groups and then crosslinked using a 4,4 0 -bismaleimidodiphenylmethane (BMI) compound through the furanmaleimide Diels-Alder (DA) reaction.…”

Section: Introductionmentioning

confidence: 99%

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Self-healing polymeric materials for membrane separation: an example of a polybenzimidazole-based membrane for pervaporation dehydration on isopropanol aqueous solution

Huang

Liu

2017

RSC Adv.

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“…Polybenzimidazole (PBI), which belongs to the class of heterocyclic polymers that contain benzimidazole units, have been widely used in lots of applications including electronic and automotive components, structural resins, and DEFCs due to its excellent mechanical property, high thermal, and chemical stability . It can be acted as a kind of novel high‐performance thermal interface polymeric material.…”

Section: Introductionmentioning

confidence: 99%

High‐concentration polybenzimidazole‐assisted exfoliation of boron nitride nanoflakes for polymer composites

et al. 2017

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In this article, we present a facile method for fabricating high thermally conductive and high‐strength polybenzimidazole/boron nitride nanoflakes (BNNS) composites. In brief, based on the method of liquid‐phase exfoliation, the polybenzimidazole functionalized BNNS (f‐BNNS) were facile obtained by directly sonicating the bulk hexagonal boron nitride (h‐BN) flakes/dimethylsulfoxide dispersion in presence of polybenzimidazole. The yield concentration of exfoliated BNNS can facile reach a high concentration of ∼1.43 mg/mL after direct sonication of 10 h with assistance of polybenzimidazole. By means of solution casting, the obtained f‐BNNS/polybenzimidazole composite films shows higher thermally conductivity and mechanical property compared to that of hexagonal boron nitride/polybenzimidazole composites. With 20 wt% of f‐BNNS loading, the yield and ultimate tensile strengths of f‐BNNS/polybenzimidazole composite film can reach ∼225.7 and 252.6 MPa. When the loading of f‐BNNS is 30 wt%, the thermal conductivity of f‐BNNS/polybenzimidazole composites is ∼8.58 W/mK, 27.68 times higher than that of pure polybenzimidazole. POLYM. COMPOS., 39:4285–4297, 2018. © 2017 Society of Plastics Engineers

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Hydrophilically surface-modified and crosslinked polybenzimidazole membranes for pervaporation dehydration on tetrahydrofuran aqueous solutions

Cited by 28 publications

References 54 publications

Pervaporation separation of an azeotropic mixture of a tetrahydrofuran–water system with nanostructured polyhedral oligomeric silsesquioxane embedded poly(vinyl alcohol)

Pervaporation separation of an azeotropic mixture of a tetrahydrofuran–water system with nanostructured polyhedral oligomeric silsesquioxane embedded poly(vinyl alcohol)

Self-healing polymeric materials for membrane separation: an example of a polybenzimidazole-based membrane for pervaporation dehydration on isopropanol aqueous solution

High‐concentration polybenzimidazole‐assisted exfoliation of boron nitride nanoflakes for polymer composites

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