Analysis of Terpolymerization Systems for the Development of Carbon Fiber Precursors of PAN

Figure 4

FTIR spectra of TPAN samples: (a) [P(AN-IA-VA)]; (b) [P(AN-IA-MA)]; (c) [P(AN-BA-VA)]; (d) [P(AN-BA- MA)], (A) original and (B) heated at 220°C for 0.5 h, respectively.

(a)

(b)

(c)

(d)