Solvent interactions with polysulfone

Dangayach, K. C. B.; Bonner, D. C.

doi:10.1002/pen.760200110

Cited by 10 publications

(3 citation statements)

References 24 publications

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“…This dependence of Δ H m on solute size has been obtained for several glassy polymers, such as polysulfone, poly(phenylene oxide), and poly(vinyltrimethylsilane) . Data for poly(vinyltrimethylsilane), a high free volume, glassy, hydrocarbon-based polymer, are included in Figure for comparison.…”

Section: Resultsmentioning

confidence: 76%

Sorption of Gases and Vapors in an Amorphous Glassy Perfluorodioxole Copolymer

1999

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Gas and vapor sorption properties of a random copolymer of 87 mol % 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole and 13% tetrafluoroethylene (AF2400) are reported. Using both pressure decay and inverse gas chromatography (IGC) methods, a wide range of solutes was studied: He, N2, O2, CO2, C1−C13 n-alkanes, CF4, C2F6, C6F6, and C6F5CF3. These solutes have critical temperatures ranging from 5 to 677 K. AF2400 has very large solubility coefficients, S, relative to other glassy and rubbery polymers. Only poly(1-trimethylsilyl-1-propyne), the most permeable polymer known, exhibits higher solubility coefficients. The large solubility coefficients in AF2400 are mainly due to high Henry's law solubility coefficients. Fluorocarbon solutes exhibit higher solubility than their hydrocarbon analogues. A novel linear correlation between the logarithm of S and T c 2, where T c is the solute critical temperature, was observed. On the basis of IGC results, the microcavity size in this perfluoropolymer is larger than in conventional hydrocarbon-based glassy polymers.

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Section: Resultsmentioning

confidence: 76%

Sorption of Gases and Vapors in an Amorphous Glassy Perfluorodioxole Copolymer

1999

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“…Bulk sorption retention has been established for IGC of n-alkanes on poly(vinyltrimethylsilane) (PVTMS)6,7 and for some solvents in aromatic polysulfones (PSF). 8 In the present paper the sorption of different classes of…”

Section: Introductionmentioning

confidence: 91%

Thermodynamics of sorption in glassy poly(vinyltrimethylsilane)

Yampolskii¹,

Kaliuzhnyi²,

Durgar'yan³

1986

Macromolecules

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“…The specific attention of membrane scientists for polysulfone (PSf) is on its excellent properties such as high mechanical, thermal, and chemical (toward oxidant, reducing agents, and the extensive range of pH) stability 5 . However, these polymers are soluble in aprotic polar solvents such as dimethylformamide (DMF), dimethylacetamide (DMAc), and dimethyl sulfoxide (DMSO) 6 . But, one of the limitations of these polymers is their hydrophobic nature.…”

Section: Introductionmentioning

confidence: 99%

Thin film nanocomposites from a novel poly(keto ether sulfone) to remove metal ions from wastewater

Mehdipour‐Ataei

Babanzadeh

Khodami

2021

Polymers for Advanced Techs

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According to the clean water crisis, purification of water resources is so imperative. Reverse osmosis is the best method for the purification of wastewater. In this article, a new diol and resulting poly(keto ether sulfone) was synthesized and characterized successively. Innovative nanocomposites were prepared with the novel poly(keto ether sulfone) and various nanomaterials including clay, graphene oxide, multi‐walled carbon nanotube, and sepiolite. Polydopamine (PDA) was used to modify the hydrophilic nature of the nanoparticles surface. Thin‐film nanocomposites as reverse osmosis membranes were made by depositing of polyamide on the mentioned nanocomposites and investigated for removing metal ions like Cu (II), Co (II), Cr (II), Hg (II), Ni (II), Zn (II), and Pb (II) from water. The efficiency of membranes constructing from pristine poly(keto ether sulfone) and different nanocomposites as supporting layer of thin‐film nanocomposite were compared. The prepared membrane based on PDA‐modified MWCNT showed the best performance results including pure water flux of 215 L.m−2.h−1 and rejection of 98% for Cr (II).

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Solvent interactions with polysulfone

Cited by 10 publications

References 24 publications

Sorption of Gases and Vapors in an Amorphous Glassy Perfluorodioxole Copolymer

Sorption of Gases and Vapors in an Amorphous Glassy Perfluorodioxole Copolymer

Thermodynamics of sorption in glassy poly(vinyltrimethylsilane)

Thin film nanocomposites from a novel poly(keto ether sulfone) to remove metal ions from wastewater

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