Which from following polymers is obtained by ring opening polymerization method?

Which from following polymers is obtained by ring opening polymerization method?

  2. $\quad\left[\mathrm{NH}-\left(\mathrm{CH}_2\right)_5-\mathrm{CO}\right]_{\mathrm{n}}$
  3. $\left[\mathrm{CH}_2-\mathrm{CH}_2\right]_{\mathrm{n}}$

Solution

Ring opening polymerisation involves addition of monomers (cyclic compounds) to growing chain molecules without elimination of small molecules like $\mathrm{H}_2 \mathrm{O}, \mathrm{CH}_3 \mathrm{OH}$, etc. E.g. $\varepsilon$-caprolactum.

Asked in: MHT CET 2024 (03 May Shift 1)

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