Preparation and characterization of sulfonated amine-poly(ether sulfone)s for proton exchange membrane fuel cell

Seo, Deog-Gyu; Lim, Youngdon; Lee, Soonho; Jeong, Young-Gi; Hong, Tae-Whan; Kim, Whangi

doi:10.1016/j.ijhydene.2010.04.071

Cited by 47 publications

(14 citation statements)

References 18 publications

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“…The proton resonance at 8.2-8.3 ppm is assigned to the proton adjacent the new pendent sulfonic acid. This result may be due to the stronger electron attracting of the sulfonic acid group [43][44][45]. Also, similar indications of sulfonation were observed in the 1 H NMR spectrum of S-polySEPS film.…”

Section: Ft-ir and 1 H Nmr Analysissupporting

confidence: 70%

Preparation of high styrenic sulfonated polySEPS/clay composite film for proton exchange membranes (PEMs)

Jang

Han

2012

Journal of Industrial and Engineering Chemistry

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Section: Ft-ir and 1 H Nmr Analysissupporting

confidence: 70%

Preparation of high styrenic sulfonated polySEPS/clay composite film for proton exchange membranes (PEMs)

Jang

Han

2012

Journal of Industrial and Engineering Chemistry

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“…The amino-polyethersulfone (NH 2 -PES) was obtained by reduction of nitrated polyethersulfone (NO 2 -PES). Amination of polysulfones by nitration and reduction has been widely reported in the literature [33][34][35][36][37][38]. Nitration of the PES was carried out in dichloromethane by adding small amounts of ammonium nitrate (AN), suspended in the PES solution.…”

Section: Synthesis Of Amino-polyethersulfone (Nh 2 -Pes)mentioning

confidence: 99%

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications

Mabrouk

Ogier

Vidal

et al. 2014

Journal of Membrane Science

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Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersulfone (SO 2 Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed. Two examples are described: one crosslinked by hexane diamine, the other by amino-polyethersulfone (NH 2-PES). Sulfonated polyether sulfone (S-PES) and NH 2-PES have similar chemical structures that allow compatibility. Surprisingly enough, better results were obtained using amino-polyethersulfone. The best results have been obtained using SO 2 Cl-PES with 1.3 SO 2 Cl group per monomer unit crosslinked by 0.2 equivalent of NH 2-PES. The membranes, less brittle than pristine SPES and insoluble in solvents such as DMAc, were characterized by TGA, DMA, DSC, ionic conductivity, transport numbers, and water swelling. The results showed that these membranes presented very promising performances for use in Proton Exchange Membrane Fuel Cells.

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“…However, they suffer from such disadvantages as limited operation temperature (0~80 °C), high cost, insufficient durability and high methanol permeability. To overcome these obstacles, extensive efforts have been made to develop alternative acid-functionalized aromatic hydrocarbonbased polymers [3][4][5]. And there have been significant advances in the synthesis of sulfonated aromatic polymers as alternative proton exchange membrane [6].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of sulfonated poly (ether sulfone)s containing hexabenzocoronene graphene moiety for PEMF

Lim

Lee

Hossain

et al. 2014

2014 5th International Renewable Energy Congress (IREC)

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The novel sulfonated poly(ether sulfone)s containing hexabenzocoronene moiety that is partial graphene structure (SPGHPs) for polymer electrolyte membrane were synthesized and characterized their properties. Graphene is an allotrope of carbon and one-atom-thick planar sheets of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice. Poly(ether sulfone)s containing hexaphenylbenzenes on polymer backbone were synthesized by polycondensation and followed intra-cyclization by friedel-craft reaction with lewis acid (FeCl3) to form partial graphene structure. The sulfonation was taken selectively on hexabenzocoronen units with concentrated sulfuric acid. The structure properties of the sulfonated polymers were investigated by 1 H-NMR spectroscopy. The resulted ion exchange capacities (IEC) were 1.09~1.61 meq./g. The water uptakes were 8.84~15.27% at 30 C and 18.27%~42.38% at 80 C with changing the ion exchange capacities. The SPGHP membranes exhibit proton conductivities (80 °C, RH 90) of 78.3~ 105.7 mS/cm compared with 106.2 mS/cm of Nafion 211®.

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Preparation and characterization of sulfonated amine-poly(ether sulfone)s for proton exchange membrane fuel cell

Cited by 47 publications

References 18 publications

Preparation of high styrenic sulfonated polySEPS/clay composite film for proton exchange membranes (PEMs)

Preparation of high styrenic sulfonated polySEPS/clay composite film for proton exchange membranes (PEMs)

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications

Preparation and characterization of sulfonated poly (ether sulfone)s containing hexabenzocoronene graphene moiety for PEMF

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