ELECTRICAL-PROPERTIES OF TRI-N-BUTYL TIN ACRYLATE-METHYLMETHACRYLATE COPOLYMERS

The copolymerization of tri-n-butyl tin acrylate (TBTA) with methylmet hacrylate (MMA) has been investigated in dioxane. The composition of t hese copolymers was determined quantitatively by H-1 nuclear magnetic resonance (NMR) spectroscopy. The tin contents were estimated by gravi metric as well as thermogravimetric techniques (TGA). The reactivity r atio of such copolymers was estimated by application of the Kelen-Tudo s method. The dielectric properties of the copolymers have been studie d over a frequency range of 100-50 kHz at different temperatures from 20 to 70-degrees-C. The electrical conductivity for such copolymers wa s also measured. The results are interpreted in terms of the tin conte nt of the copolymers.