Question

(i) What is the role of $\text{t}$-butyl peroxide in the polymerization of ethene?
(ii) Identify the monomers in the following polymer:
${[-NH-{\left(C{H}_2\right)}_6-NH-CO-{\left(C{H}_2\right)}_4-CO-]}_n$
(iii) Arrange the following polymers in the increasing order of their intermolecular forces:

Polystyrene, Terylene, Buna-S

(iv) Write the mechanism of free radical polymerization of ethene.

Answer 1

1. Tert-butyl peroxide is used as a free radical generating initiator or simply as a catalyst during the polymerisation of ethene.

2. Hexamethylene diamine and Adipic acid are the monomers.

3. Increasing order of the intermolecular forces is:
Terylene > Polystyrene > Buna-S

"or"

4. Image shows the free radical mechanism of polymerization of ethene.