Question
Why is cationic polymerization preferred in case of vinylic monomers containing electron donating groups?
Solution
Cationic Addition Polymerization : In the case of vinylic monomers containing electron donating groups, electron density on double bonded carbon will be more and it can easily be attacked by H+ so as to undergo cationic polymerization. Cations are stabilised by electron donating groups.
It involves following steps:
(i) Chain initiation step:
(ii) Chain propagation step:
(iii) Chain terminating step:
It involves following steps:
(i) Chain initiation step:
(ii) Chain propagation step:
(iii) Chain terminating step:
