A new interpretation of the kinetic model for the imidization reaction of PMDA-ODA and BPDA-PDA poly(amic acid)s - Polyimides and Other High Temperature Polymers - page 40

Figure 3. FTIR absorption peak at 1380 cm -1 of PMDA-ODA poly(amic acid) cured at 165°C at dif-
ferent times and the fully imidized form by curing at 400°C for two hours.
Figure 4. Percent imidization of PMDA-ODA poly(amic acid) as a function of time at different
temperatures (symbols represent experimental results while solid lines represent results fitted with
eqs. (4), (5), and (6).