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Merck
모든 사진(1)

주요 문서

939722

Sigma-Aldrich

Sulfonated polysulfone

new

proton conducting polymer, degree of sulfonation 70%

동의어(들):

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

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About This Item

Linear Formula:
(C24H14Na2O10S3)n(C24H16O4S)m
MDL number:
UNSPSC 코드:
13111024

설명

degree of sulfonation: 60-90%

Quality Level

양식

powder

분자량

20-80 kDa

색상

white to beige

mp

>300 °C

작용기

sulfonic acid

폴리머 구조

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;;

InChI key

MSKVMJLWNYCWLA-UHFFFAOYSA-N

일반 설명

Our polyaromatic sulfonic acid powder is a high-performance sulfonated aromatic polymer, featuring a degree of sulfonation of 70%. This proton conducting polymer is characterized by the presence of sulfonic acid groups attached to its aromatic backbone. The 70% degree of sulfonation imparts several unique properties to membranes made from it, including higher ionic conductivity and greater water uptake, without significantly compromising their mechanical properties such as breaking strength or tensile modulus. This balance of properties makes our polyaromatic sulfonic acid powder highly versatile and valuable in a wide range of applications that require both performance and durability.

애플리케이션

One of the primary applications of sulfonated aromatic polymers is in proton exchange membranes (PEMs), a critical component in fuel cells. Their high proton conductivity facilitates efficient transport of protons across the membrane, enabling the electrochemical reactions within the fuel cell to convert chemical energy into electrical energy. Beyond fuel cells, these polymers are utilized in redox flow batteries, contributing to the performance and longevity of these energy storage systems due to their chemical stability and proton conductivity.
Moreover, sulfonated aromatic polymers are employed in water treatment membranes for processes like reverse osmosis, nanofiltration, and ultrafiltration. Their chemical resistance allows them to withstand harsh environments while maintaining high water permeability, effectively separating and purifying water. These polymers are also explored for their potential in gas separation membranes, where they can selectively separate gases for various industrial processes. Continued research and development in this area promise further advancements and innovations in fuel cells, energy storage, water treatment, and gas separation.

Storage Class Code

11 - Combustible Solids

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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