What is the role of benzoyl peroxide in the polymerisation of ethene ?

What is the role of t-butyl peroxide in the polymerisation of ethene?

What is the role of t- butyl peroxide in the polymerisation of ethene

(i) What is the role of t-butyl peroxide in the polymerization of ethene? (ii) Identify the monomers in the following polymer: -(NH - (CH_(2))_(6) - NH - CO - (CH_(2))_(4) - CO)-_(n)