Sulfur Dioxide

The copolymerization of SO2with propylene oxide mediated by organic ammonium salts: a comprehensive study of the main-chain structure, living polymerization character and regioselectivity

“…1,2 The current major strategies for the utilization of SO 2 are limited to a bleaching agent, preservative, precursor for sulfuric acid, solvent, etc . 3–8 For synthetic chemistry, SO 2 can also be utilized as a reactant for the construction of sulfones, sulfonamides, sulfonate and so on, 9–12 owing to its high reactivity and low cost. 13 Besides, the transformation of SO 2 into sulfur-containing polymers has turned out to be an efficient approach for SO 2 utilization, 14–21 and has developed quickly because the obtained polymers have revealed excellent properties, including enhanced optical properties, chemical resistance and metal coordination ability.…”