On January 31, 2021, Yuan, Chengyun; Wang, Yinghan published an article.Synthetic Route of 80-07-9 The title of the article was Synthesis and characterization of a novel sulfonated poly (aryl ether ketone sulfone) containing rigid fluorene group for DMFCs applications. And the article contained the following:
A new sulfonated poly (aryl ether ketone sulfone) consisting of rigid fluorene groups (SPAEKS) is synthesized from 3, 3′-disulfonate-4, 4′-dichlorodiphenylsulfone, and 9, 9-bis (4-hydroxyphenyl) fluorene by a typical condensation polymerization The chem. structure of SPAEKS is characterized by 1H-NMR and FTIR spectra. SPAEKS-x membranes have moderate water absorption, swelling rate, good oxidative stability, and excellent thermal stability. The proton conductivity of SPAEKS-x membranes is in the range of 38.5-66.5 mS/cm. In particular, the proton conductivity of SPAEKS-50 membrane is 66.5 mS/cm, which is slightly higher than Nafion117 membrane (63.5 mS/cm) measured under the same conditions. All membranes show much lower methanol permeability and much higher proton selectivity than Nafion 117 membrane. Especially, proton selectivity of SPAEKS-40 membrane (13.8 x 104 S s cm-3) is about 4 times higher than that of Nafion 117 membrane (3.6 x 104 S s cm-3). The experimental process involved the reaction of 4,4′-Sulfonylbis(chlorobenzene)(cas: 80-07-9).Synthetic Route of 80-07-9
The Article related to sulfonated polyaryl ether ketone sulfone oxidative stability proton conductivity, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Synthetic Route of 80-07-9
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics