Addition polymerisation occurs by 3 mechanisms. Then what about anionic&cationic polimerisation?
Dear Student,
Addition polymerization occurs by three methods
Free radicle method
Cationic polymerization method
- Anionic polymerization method
Each method is completed by three steps
Chain initiation steps
Chain propagation steps
- Chain termination steps
Cationic polymerization
Proton adds to double bond of monomer to form carbocation which attacks another monomer to form bigger carbocation and so on. Then, loss of proton occurs to complete polymerization. The following steps occur in this polymerisation.
Anionic polymerization
Base adds to double bond of monomer to form carbanion which attacks another monomer to form bigger carbanion and so on. Then, addition of proton occurs to complete polymerization. Steps are:
