The synthesis of poly(phenylene sulfide sulfone) in ionic liquids at atmospheric pressure

Abstract

High performance polymer poly(phenylene sulfide sulfone) was prepared under mild conditions based on 4,4-difluorodiphenylsulfone and Na2S in i-pmim PF6 (IL)/MImBS (ZI) at atmospheric pressure and compared with conventional methods.

TiO2‐graphene dispersed sulfonated polyphenylenesulfide sulfone nanocomposites for medium temperaturePEMFCs

“…The polymer and sulfonating polymer showed a peak at around at 1163 cm −1 which are referring to asymmetric and symmetric stretching vibrations of SO 2 group. The new IR band around at 1069 cm −1 belongs to phenyl–sulfur bond, which indicates the formation of sPPSS 47 . sPPSS polymer was confirmed by the consistent comparison with 1 H NMR spectrum depicted in Figure 2.…”

A non-metal route to realize the bio-based polyester of poly(hexylene succinate): preparation conditions, side-reactions and mechanism in sulfonic acid-functionalized Brønsted acidic ionic liquids

“…However, when the system reaches 1000 Pa, the water can be relatively effectively removed. In our previous work, 20 toluene was used to eliminate water since the formation of azeotrope between water and toluene can help water remove in reaction system. However toluene to remove water does not appear effective due to the low temperature that cannot help the azeotrope of water and toluene to effectively evaporate.…”