Engineering Homework Help

In a certain chemical cross-linking reaction involving
a monomer that can react at three sites,
the degree of the reaction, f obeys
the second order rate law.

df/dt = k (1-f)^2

Where the rate
constant, k has the value 4 x 10^-4 s^-1. Use the Flory-Stockmayer
to calculate.

a. the time at which
the gel point is reached

b. the time after which
three quarters of the monomers have been polymerized.

c. the time after which
three-quarters of the monomers form part of the infinite network.