About
Perfluorosulfonic Acid Ion Exchange Resin
Ion exchange resin is an insoluble polymer compound with functional groups (active groups that exchange ions), network structure. Pore structure is divided into gel type and macroporous type. Those with physical pore structure are called macroporous resin. If the classification is acidic, "cation" should be added before the name, and if the classification is alkaline, "anion" should be added before the name.
Perfluorosulfonic acid resin is the strongest known solid super acid, with good heat resistance, chemical stability and high mechanical strength. As a green solid acid catalyst, perfluorosulfonic acid resin has good catalytic activity and selectivity for many reactions.
Perfluorosulfonic acid resin is generally obtained by copolymerizing perfluorovinyl ether monomer with sulfonic acid group and tetrafluoroethylene to obtain perfluorosulfonic acid resin. Due to the introduction of the most electronegative fluorine atom into the molecule, a strong field effect and inductive effect are generated, so that its acidity increases sharply. Compared with liquid super acid, when used as a catalyst, it is easy to separate, can be used repeatedly, and is less corrosive, causes less pollution, has good selectivity, and is easy to be applied to industrial production.
