Electrical and Spectroscopic Studies on Some Transition Metal Acrylates methyl Methacrylate Bulk Co-and Terpolymers

摘要

Copolymers of Fe acrylate-methyl methacrylate (MMA),Mn acrylate-MMA and ter-polymer of Fe acrylate-Mn acrylate-MMA were prepared by bulk technique.A thorough investigation of the response of the prepared samples to #gamma#-irradiation has been carried out.The frequency dependence of a.c.conductivity data showed that the relaxation fre-quency depend on the type and concentration of the metal acrylate units.For a wide distribution of relaxation time,the change of slope at the transition in the plot of log #sigma# acVs.log fis hardly noticable.The change in the position of some absorption bands in the UV-visible spectrum was attributed to the existence of interaction between the transition metal acrylate unit and MMA monomer.From the relationship between the absorption intensity and dosage occurred,the data suggested that MMA-Fe acrylate copolymer could be used as plastic dosimeter for #gamma#-rays in the dose range 1.75-6.41KG y.