Write a three-stèp mechanism for this reaction. Use curved arrows to show electrons movement 40. ..- CH2 CH CH2 CH-CH2- CH CN CN CN Write two steps of a radical mechanism for the synthesis of this polymer. The first step should show a radical (R-) reacting with a monomer. The second step should show the product of the first step reacting with another monomer to give the next product. Use dots for electrons and curved arrows to show their movement where appropriate.