Sulfonated poly(arylene-co-imide)s as water stable proton exchange membrane materials for fuel cells

Li, Wenmu; Cui, Zhiming; Zhou, Xiaochun; Zhang, Suobo; Dai, Lei; Wang, Xing

doi:10.1016/j.memsci.2008.02.026

Cited by 33 publications

(18 citation statements)

References 24 publications

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“…The methanol permeabilities of Non-S-coPI, S-coPI-1, S-coPI-2, and S-coPI-3, are 3.86 9 10 -8 , 5.85 9 10 -8 , 6.52 9 10 -8 , and 4.02 9 10 -8 cm 2 s -1 , respectively, which are much lower than that of Nafion 117 membrane (1.74 9 10 -6 cm 2 s -1 ). The previous work as reported by Li et al [18], all of NPI/SPP membrane systems attained the methanol permeability values in the range of 1.3-6.2 9 10 -7 cm 2 s -1 , which is about 10 times higher than ours. So, the S-coPI membrane in the present work is a suitable candidate for using as the proton exchange membrane.…”

Section: Non S-copi S-copi-1 S-copi-2 S-copi-3 Nafion117supporting

confidence: 54%

“…In the previous work reported by Sung et al., at the room temperature (30°C), the proton conductivities in the fully hydrated state of the pristine sPI membrane and the coated sPI membrane were 0.65 9 10 -1 and 0.62 9 10 -1 S cm -1 , respectively [3], which are comparable to ours of the present work. The other work as reported by Li et al [18], the NPI(1)/SPP(70) membrane attained the proton conductivity value of 0.207 S cm -1 at 30°C which was higher than our membrane.…”

Section: Proton Conductivitycontrasting

confidence: 50%

“…The higher the selectivity, the higher performance of the proton exchange membrane can be expected [12].…”

Section: Methanol Permeabilitymentioning

confidence: 99%

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Synthesis and characterization of sulfonated poly(aromatic imide-co-aliphatic imide) (S-coPI) membrane for direct methanol fuel cells

2014

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A novel polymer electrolyte membrane (PEM) based on sulfonated poly(aromatic imide-co-aliphatic imide) (S-coPI) is synthesized by the polycondensation of 3,3 0 ,4,4 0 -benzophenonetetracarboxylic dianhydride (BPTDA) with 4,4 0 -diaminodiphenylmethane (DDM), 4,4 0 -diaminodiphenylmethane-3,3 0 -disulfonic acid disodium salt (S-DDM), and adipic acid dihydrazide (ADH). The ADH is utilized to increase the flexibility of the backbone structure due to its aliphatic structure. The sulfonation degree of S-coPI is controlled by varying the mole ratio of DDM, S-DDM, and ADH. The S-DDM containing two sulfonated groups is confirmed by 1 H-NMR. S-coPI membranes are characterized by FT-IR to identify the characteristic peaks of the sulfonated group at 1,298, 1,159, 1,098, and 1,065 cm -1 . Thermogravimetric analysis is used to investigate the thermal stability of S-coPI; it undergoes 2 steps in the degradation process, one at 320°C which represents the decomposition of the sulfonated group and one at 560°C which represents the polymer backbone degradation. The S-coPI-3, with the highest sulfonation degree, possesses proton conductivity value of about 1.16 9 10 -2 S cm -1 . The methanol permeability of the S-coPI films are in the range of 3.864 9 10 -8 -6.521 9 10 -8 cm 2 s -1 , about 26-40 times lower than that of Nafion 117.

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Section: Non S-copi S-copi-1 S-copi-2 S-copi-3 Nafion117supporting

confidence: 54%

Section: Proton Conductivitycontrasting

confidence: 50%

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Synthesis and characterization of sulfonated poly(aromatic imide-co-aliphatic imide) (S-coPI) membrane for direct methanol fuel cells

2014

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“…Li et al have polymerized poly(arylene-co-naphthalimide) with various content of a sulfonated arylene co-monomer [60]. An initial polyimide a relaxation process around 345 C is shifted above 420 C in the 30/70 copolymer, indicating the stronger interaction among copolymer chains induced by the SO 3 H groups.…”

Section: Polymers Blends and Copolymersmentioning

confidence: 99%

Mechanical and Dynamic Mechanical Analysis of Proton‐Conducting Polymers

Chailan

Khadhraoui

Knauth

2012

Solid State Proton Conductors

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“…They modified the chemical structure of naphthalimide monomer to improve the water stability. [18,19] In this communication, we designed the multiblock copolymers composed of poly(sulfonated phenylene) segments and hydrophobic polynaphthalimide segments, of which the chemical structure is illustrated in Figure 1. The former hydrophilic segments contribute to both the high through-plane proton conductivity and the high hydrolytic stability and the latter hydrophobic segments contribute to the anisotropic membrane swelling and the high mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Poly(sulfonated phenylene)‐block‐Polyimide Copolymers for Fuel Cell Applications

Chen

et al. 2009

Macromol. Rapid Commun.

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Novel poly(2-(3-sulfo)benzoyl-1,4-phenylene)-block-polynaphthalimide (PSP-b-PI) copolymers were successfully synthesized by Ni(0)-catalyzed copolymerization of 2,5-dichloro-3'-sulfo-benzophenone and dichloro-terminated naphthalimide oligomer. The membranes exhibited a microphase-separated structure and good hydrolytic stability at 130 °C. They showed a fairly strong anisotropy of membrane swelling with much smaller in-plane swelling, but a rather weak anisotropy of proton conductivity. The membranes had a fairly high through-plane conductivity in water and even under low relative humidity. The PSP-b-PI copolymer with an IEC of 1.5 meq · g(-1) showed high PEFC performance due to the high through-plane conductivity.

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Sulfonated poly(arylene-co-imide)s as water stable proton exchange membrane materials for fuel cells

Cited by 33 publications

References 24 publications

Synthesis and characterization of sulfonated poly(aromatic imide-co-aliphatic imide) (S-coPI) membrane for direct methanol fuel cells

Synthesis and characterization of sulfonated poly(aromatic imide-co-aliphatic imide) (S-coPI) membrane for direct methanol fuel cells

Mechanical and Dynamic Mechanical Analysis of Proton‐Conducting Polymers

Poly(sulfonated phenylene)‐block‐Polyimide Copolymers for Fuel Cell Applications

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