In which of the following is the chain termin | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the anionic polymerisation of $C_6H_5-CH=CH_2$ initiated by $RLi$,the active species is a carbanion,$C_6H_5-CH^{-}-CH_2R$. Since there is no me

Vedclass · Accepted Answer

Polymerisation of $C_6H_5-CH=CH_2$ by $RLi$

Vedclass · Answer

(A) In the anionic polymerisation of $C_6H_5-CH=CH_2$ initiated by $RLi$,the active species is a carbanion,$C_6H_5-CH^{-}-CH_2R$. Since there is no mechanism for the termination of these carbanions (unlike free radical or cationic polymerisation where termination occurs via coupling,disproportionation,or chain transfer),the chain continues to grow until the monomer is consumed. This is known as 'living polymerisation',where the chain termination step is effectively absent.

In which of the following is the chain termination step absent?

Similar Questions

The Ziegler-Natta catalyst is.....

What type of polymer is natural rubber?

Bakelite is obtained from phenol by reacting it with

Ziegler-Natta catalyst is used in the manufacture of

The polymer formed on heating Novolac with formaldehyde is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module