1.

What are the different ways of initiating addition polymerisation ? Describe one of them for polymerising vinyl chloride.

Answer»

Solution :Polymerisationcan be initiatedin three WAYS :
(ii) Free RADICAL polymersiationusing `H^(+)`asinitiator .
(ii) Cationicpolymersiationusing`H^(+)` as INITIATOR .
(iii)Anionicpolymerisation using`KNH_(2)`asinitiator .
Free radicalpolymerisationof vinyl chloride .
In `to`In ( In stands for free radical initator and In forfree radical).
In`+ CH_(2)= underset(Cl) underset(|)(CH)to` In `-CH_(2) - underset(Cl)underset(|)(CH) + CH_(2) = underset(CI)underset(|)(CH)to In (-CH_(2) - underset(CI)underset(|)(CH)-)_(N)`


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