LearnChemE

Polymerization Reactors: Example Problems

Try to solve these problems before watching the solutions in the screencasts.

Example Problem 1

Calculate molecular weight distribution, moments, degree of polymerization, average molecular weights and polydispersity for a simplified addition polymerization in a CSTR.

Feed concentration of monomer = 1.0 mol/L

Initiation rate constant = 0.01 s-1

Propagation rate constant = 0.1 L/(mol-s)

To simplify calculations, assume this is a living polymerization (i.e., no termination)

τ = 500 s        MW = 45