Analogously, in the terpoly-mer of poly(vinylidene fluoride-trifluoroethylene-1,1-chloro fluoro ethylene) (P(VDF-TrFE-CFE)), the bulky termonomer CFE units serve as local defects to the polar-ization ordering in the crystalline regions, which convert the all-trans polar-conformation to a phase with a mixture of trans-gauche (TGTG’), all-trans and TG3TG3 conformations, which is macroscopically non-polar and exhibits ferroelectric relaxor behavior[9–17]