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Key Documents

939730

Sigma-Aldrich

Sulfonated polysulfone

new

proton conducting polymer, degree of sulfonation 90%

Sinonimo/i:

Sulfonated aromatic polymer for fuel cells and PEMs, Sulfonated poly(arylene ether sulfone) ionomer

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About This Item

Formula condensata:
(C24H14Na2O10S3)n(C24H16O4S)m
Numero CAS:
Codice UNSPSC:
13111024

Descrizione

degree of sulfonation: 75-110%

Livello qualitativo

Forma fisica

powder

PM

20-90 kDa

Colore

white

Gruppo funzionale

sulfonic acid

Architettura del polimero

shape: linear

InChI

1S/C12H8F2O8S3.C12H8F2O2S.C12H10O2.2Na/c13-9-3-1-7(5-11(9)24(17,18)19)23(15,16)8-2-4-10(14)12(6-8)25(20,21)22;13-9-1-5-11(6-2-9)17(15,16)12-7-3-10(14)4-8-12;13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10;;/h1-6H,(H,17,18,19)(H,20,21,22);1-8H;1-8,13-14H;;
MSKVMJLWNYCWLA-UHFFFAOYSA-N

Descrizione generale

Our sulfonated polysulfone proton conducting polymer features a high degree of sulfonation at 90%. This distinctive characteristic imparts higher water uptake, ionic conductivity, and ion exchange capacity compared to polymers with lower degrees of sulfonation. However, the trade-off for these enhanced properties is that membranes made from this polymer exhibit weakened mechanical properties, such as lower breaking strength and a greater swelling ratio. This product is designed for applications where superior ionic performance is prioritized over mechanical robustness.

Applicazioni

Our sulfonated polysulfone proton conducting polymer with a high degree of sulfonation at 90% is an excellent choice for applications that prioritize superior ionic conductivity and water uptake. This product is particularly well-suited for use in proton exchange membranes (PEMs) for fuel cells, redox flow batteries, and other energy storage systems where efficient proton transport and high ion exchange capacity are crucial. In cases where mechanical robustness is a priority, our polyaromatic sulfonic acid powder with a 70% degree of sulfonation may be a more suitable option. Beyond energy storage and conversion, this high-performance polymer can also be explored for alternative applications, such as water treatment membranes and filtration systems, where its exceptional ionic performance can contribute to improved removal of impurities and contaminants.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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