Question

a. Calculate Mn, Mw and the PDI of a polymer sample that contains equimolar amounts of chains with the following molar masses: 10 kg/mol, 20 kg/mol, 30 kg/mol, 50 kg/mol and 100 kg/mol.

b. During an end group titration of a carboxyl terminated polybutadiene, it was found that 5.2 mL of a 0.124 M potassium hydroxide solution was required to fully react with the end groups. Calculate the molar mass of the polymer. (Assume there are two end groups per chain.)

Answer 1