In anionic polymerisation, the compound which acts as effective chain initiator is

In anionic polymerisation, the compound which acts as effective chain initiator is
  1. $\mathrm{BF}_3$
  2. $\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}_2$
  3. $\mathrm{SnCl}_2$
  4. $\mathrm{R}-\mathrm{Li}$

Solution

Alkyl lithium used as initiators for an ionic polymerisation

Asked in: AP EAMCET 2018 (22 Apr Shift 1)

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