A STATIC PERMITTIVITY AND DIELECTRIC-RELAXATION STUDY OF COMPLEX-FORMATION IN DILUTE-SOLUTIONS OF MALEIC-ANHYDRIDE OR ONE OF ITS DERIVATIVES PLUS METHYL-METHACRYLATE OR STYRENE

The dielectric loss was measured in the frequency range from 0.2 to 18 GHz for binary mixtures of (A), either maleic anhydride or tetrachlor o phthalic anhydride, with (B), either methyl methacrylate or styrene, in dilute CCl4, and benzene solutions at temperatures between 20 and 40 degrees C. The relaxation times depend nonlinearly on the A-B mixtu re ratio. This is attributed to molecular interactions between A and B (which act as electron acceptor and donor molecules respectively). Al so the static permittivity (molecular polarization) was measured, from which the equilibrium constants could be determined.