Synthesis of crosslinker containing sulfone group and its crosslinking with styrene

摘要

A new crosslinker containing sulfone group was synthesized by polymerization of 4,4'-dihydroxydiphenyl-sulphone and methacryloyl chloride. Using this kind of crosslinker, the crosslinked polystyrene beads were prepared by suspension polymerization and UV-light polymerization, respectively. The synthesized crosslinker and crosslinked polystyrene beads were characterized by nuclear magnetic resonance spectra and fourier transform infrared spectroscopy. The effect of crosslinker amount on sulfonation rate of beads was studied. Polystyrene beads made by suspension polymerization possess higher sulfonation rate when the crosslinker amount is lower than 6%. When the content of crosslinker is higher than 6%, the reaction still can be carried out by UV-light polymerization, but the coagulation occurred during suspension polymerization because of the extremely high polarity of crosslinker.