Calcium diacrylate (CDA) and calcium dimethacrylate (CDM) divinyl monomers were synthesized by a solvo thermal method. The FTIR spectra showed a peak at 1650 cm À1 due to the presence of a C¼ ¼C for both CDA and CDM. Proton NMR and carbon NMR confirmed the structure of CDA and CDM synthesized by a solvo thermal method. DSC determined the melting temperatures of CDA and CDM. XRD indicated the presence of a d 110 plane peak for CDA and CDM. The % weight residue that remained above 700 C in TGA method confirmed the higher thermal stability of CDA.Thus, synthesized CDA and CDM were surface grafted on linear low density poly(ethylene) (LLDPE) at 160 C under inert atmosphere by thermolysis method. FTIR confirmed the presence of C¼ ¼O stretching due to CDA and CDM in LLDPE backbone after thermolysis reaction.1 H-NMR confirmed the chemical grafting of CDM onto LLDPE.