Please see the attached file for the full problem explanation.
Please help me to discuss these two mechanisms:
1. Pt- catalyzed ROP
2. Thermal ROP
Pt- catalyzed ROP : Transition metal catalyzed ROP is believed to follow initial oxidative addition of the strained Si-C bond to the transition metal center (in this case, Pt). This is followed by ligand transfer from the metal or ion transfer like halides to the silicon center. Transfer generates the intermediate which then takes part in the propagation step by reacting with another molecule of monomer. ...
This 146 word solution provides a brief comparison of thermal and Pt-catalyzed ring opening polymerization.