Answer to Question #170589 in Inorganic Chemistry for Mark Arnold Phillips

Question

a)              Write the addition polymerization sequence (initiation,propagation and termination) of vinyl chloride when the process is initiated by an initiator (I─I).

Answer 1

Initiation

CI=CI---> CI° + CI°

2CH₂ = CH₂ ---> CH₂ - CH° + CH₂ - CH°

CH₂ - CH° + Cl° -----> CH₂ - CH-Cl°

Propagation

CH₂ - CH-Cl° + CH₂ - CH° ---CH₂-CH- CH-CH₂-CH-Cl° on and on

Termination

CH₂-CH- CH-CH₂-CH-Cl° +Cl° ---> CH₂-CH- CH-CH₂-CH-Cl₂