of 350gdm3 in toluene (C7H8) using an azobisisobutyronitrile (C8H12N4) initiator at a mass concentration of 2.0102gdm3. For the following questions it can be assumed that the initiator was 70% efficient, termination by combination was negligible, the density of the initial solution of methyl methacrylate in toluene was 860gdm3 and the rate coefficients for this polymerisation were: Initiator dissociation, kd=8.5106s1 Propagation, kp=833dm3mol1s1 Termination, kt=9.3106dm3mol1s1; Transfer to monomer, ktr,M=3.93103dm3mol1s1 Transfer to solvent, ktr,S=7.34103dm3mol1s1. (a) Calculate the initial rate of polymerisation. Explain your working and state any assumptions made. (b) The Mayo equation for chain transfer to monomer, initiator and solvent is given below. Terms have their usual meaning. xn1=(xn)01+CM+CI[M][I]+Cs[M][S] Calculate the number average molar mass of poly(methyl methacrylate) formed in the initial stages of this polymerisation. Explain your working and state any assumptions made