Analogous to the copolymer, at temperatures significantly
below Tg, the local γ relaxation is observed in
the terpolymer (Figs12 and 16) . Unlike the βr process,
the γ transition exhibits Arrhenius behavior with
fm = 1.88 × 1012 × exp(−42.6 kJ/mol/RT). When compared
with the copolymer, the γ relaxation of the terpoly-