Synthesis and characterization of poly(ether sulfone ether ketone ketone) grafted poly(sulfopropyl methacrylate) for proton exchange membranes via atom transfer radical polymerization

Zeng, Rong; Chen, Yiwang; Zhou, Weihua; Xiao, Shuqin; Xiao, Jichun; Song, Chen

doi:10.1007/s10853-009-4136-x

Cited by 19 publications

(3 citation statements)

References 36 publications

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“…The most successful alternative (PEM) membranes studied to date are based on high performance polymeric backbones containing sulfonic acid groups, such as polysulfones, ,,− polyimides, − poly(arylene-ether)s − and poly (ether-ether-ketones). , Sulfonation of these polymers is achieved by introducing sulfonic groups (−SO 3 H); either by treating an existing polymer with sulfonating agents (postsulfonation) or by synthesizing polymers with monomers containing sulfonated moieties, which render these polymers proton conductive. The hydrophobic backbones enhance physical properties and the sulfonic acid groups provide the ionic conductivity, and the resulting polymers exhibit high ionic conductivity, good mechanical strength, and high temperature resistance. − ,− Preparation of materials by postsulfonation procedures not only affects mechanical and thermal stability but also could make control of the sulfonation process difficult.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Sulfonated Copolyamides Based on Poly(hexafluoroisopropylidene) Isophthalamides for Polymer Electrolytic Membranes

Pérez‐Padilla

Smit

Aguilar‐Vega

2011

Ind. Eng. Chem. Res.

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A series of sulfonated random copolyamides with increasing sulfonation degree were synthesized from the aromatic diamine 4,4′-(hexafluoroisopropylidene)dianiline, HFA, reacted with 2,4-diaminobenzenosulfonic acid, DABS, by direct polycondensation using isophthalic diacid, ISO, as comonomer. Thin films of the sulfonated copolyamides were prepared by the solution-evaporation method using dimethylacetamide, DMAc. The structure of the resulting sulfonated copolyamides was confirmed by FTIR and 1H NMR which evidenced the presence of amide and sulfonic groups in the proposed concentrations. Thermal stabilities as characterized by TGA, showed the onset of decomposition at 320 °C for the ionic moieties and above 600 °C for the nonsulfonated part of the copolymers. The values of water uptake and ion exchange capacity, IEC, at room temperature for the copolymer with 50 mol % of DABS, HFAS55 membrane were higher than those obtained for Nafion 115. HFAS55 also presented a proton conductivity value of 3.3 (mS cm–1) which was similar to the one of Nafion 115 tested under the same conditions which situates it as a possible material for PEM membrane preparation.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Sulfonated Copolyamides Based on Poly(hexafluoroisopropylidene) Isophthalamides for Polymer Electrolytic Membranes

Pérez‐Padilla

Smit

Aguilar‐Vega

2011

Ind. Eng. Chem. Res.

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“…One of the approaches to improve the performance is to design polymer structure composed of hydrophilic and hydrophobic segments which are expected to improve proton conductivity and reduce the water swelling of membranes due to the defined phase‐separated structure between hydrophilic and hydrophobic domains . In addition, several research groups proved that flexible pendent perfluoroalkyl sulfonic acid groups in the side chains of polymers could effectively form the phase separation and enhance the proton conductivity .…”

Section: Introductionmentioning

confidence: 99%

Proton exchange membrane based on crosslinked sulfonated polyphosphazene containing pendent perfluorosulfonic acid groups with sulfonated poly(ether ether ketone)

Yan

Zhang

Xu³

et al. 2016

J of Applied Polymer Sci

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A series of crosslinked membranes based on new sulfonated polyphosphazene bearing pendent perfluorosulfonic acid groups (PMFP-g-PS) and sulfonated poly (ether ether ketone) were prepared and evaluated as proton exchange membranes for direct methanol fuel cells (DMFCs). The structure of PMFP-g-PS was characterized by Fourier transform infrared spectroscopy, 1 H and 19 F NMR spectra. In comparison with the pristine PMFP-g-PS membrane, the crosslinked membranes showed improved water uptakes and proton conductivities. The methanol permeability values of the membranes were in the range of 1.32 3 10 27 to 3.85 3 10 27 cm 2 /s, which were lower than Nafion 117 (12.1 3 10 27 cm 2 /s). The selectivity of all the membranes was much higher compared with Nafion 117. Furthermore, transmission electron microscopy observation revealed that clear phase-separated structures were well dispersed and connected to each other in the membranes. These membranes displayed high water uptakes and low swelling ratios, high proton conductivities, low methanol permeability values, good thermal, and oxidative stabilities. The results indicate that these membranes are potential candidate proton exchange membrane materials for DMFCs. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43492.

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“…The proton exchange membrane (PEM) is one of the key components determining the performance of the fuel cells. There has been considerable effort focusing on the development of alternative low‐cost, high‐temperature, polymer‐based electrolytes membranes 1–8…”

Section: Introductionmentioning

confidence: 99%

Crosslinked electrolytes based on poly(butoxymethylenenorbornene) for proton exchange membrane

Zhang

et al. 2011

J of Applied Polymer Sci

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ABSTRACT:The poly(butoxymethylenenorbornene-conorbornenemethyl acetate) (PBN/NA) were successfully synthesized via the vinyl addition copolymerization of 2-butoxymethylene norbornene (BN) and norbornene-2-methyl acetate (NA). The poly(butoxymethylenenorbornene-co-norbornenemethanol) (PBN/NOH) was obtained by the de-esterification of PBN/NA. After doping with 4,5-imidazole dicarboxylic acid (IDA) and phosphoric acid (H 3 PO 4 ), the proton exchange membranes with crosslinked structure were obtained and the corresponding morphology, water uptake, proton conductivity, methanol permeability, thermal stability, as well as tensile properties were investigated. The results indicate that the crosslinked membranes showed higher proton conductivity at higher temperatures and lower methanol permeability after incorporation of more content of IDA and H 3 PO 4 . The PNIH membranes showed lower tensile strength, elongation at break as well as the elastic modulus than pristine PBN/ NOH.

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Synthesis and characterization of poly(ether sulfone ether ketone ketone) grafted poly(sulfopropyl methacrylate) for proton exchange membranes via atom transfer radical polymerization

Cited by 19 publications

References 36 publications

Preparation and Characterization of Sulfonated Copolyamides Based on Poly(hexafluoroisopropylidene) Isophthalamides for Polymer Electrolytic Membranes

Preparation and Characterization of Sulfonated Copolyamides Based on Poly(hexafluoroisopropylidene) Isophthalamides for Polymer Electrolytic Membranes

Proton exchange membrane based on crosslinked sulfonated polyphosphazene containing pendent perfluorosulfonic acid groups with sulfonated poly(ether ether ketone)

Crosslinked electrolytes based on poly(butoxymethylenenorbornene) for proton exchange membrane

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