Dielectric properties of complex zn(II) salts of ethylene-methacrylic acid copolymer with n-hexylamine

This article describes dielectric properties of complex Zn(II) salts of ethylene-methacrylic acid copolymer (5.4 mol% methacrylic acid) with n-hexylamine. In all samples, the β′ relaxation near 340 K and γ relaxation near 170 K are observed. These are assigned, respectively, to micro-Brownian molecular motion of long segments above T_g and to local molecular motion of short segments below T_g. The dielectric results indicate that ionic clusters are not formed in these systems.