Concentrations of acrylonitrile and methyl methacrylate

If equal concentrations of acrylonitrile and methyl methacrylate were each polymerized at 60’C, with equal concentration of the same initiator, which monomer would have the higher degree of polymerization (DP) and by how much? Assume polyacrylonitrile undergoes termination only by radical combination and poly(methyl methacrylate) by disproportionation,that no chain transfer occurs, and that initiator efficiencies are the same.