| 摘要 |
The cross-linked polyphosphonate-sulfone composition for removal of metal ions from wastewater relates to a cross-linked anionic polyelectrolyte polymer for the removal of metal ions, such as lead (Pb2+) and copper (Cu2+) ions, from wastewater and the like. The cross-linked anionic polyelectrolyte polymer has the formula: The cross-linked anionic polyelectrolyte polymer is made by cyclopolymerization of diallylaminomethylphosphonic acid, 1,1,4,4-tetraallylpiperazinium dichloride (a cross-linker), and sulfur dioxide in the presence of AIBN (an initiator) in DMSO at 65° C. to form a cross-linked polyzwitterionic acid (CPZA). The CPZA is then treated with base (such as sodium hydroxide) to form the cross-linked anionic polyelectrolyte polymer having the formula shown above. |
