Abstract

Low density polyethylene (LDPE) was melt grafted with two different functionalities namely amide and anilide in an inert atmosphere at 160 °C under different experimental conditions by thermolysis method and the order of the functionalization reaction was determined. The % grafting was determined by FTIR spectroscopy quantitatively based on the relative intensity (FTIR-RI) method. It is observed that while increasing the mass% of DCP, the corrected peak area of carbonyl and C–H out-of-plane bending vibrations was increased linearly. Here, the benzamide system showed higher % functionalization than benzanilide system. DSC and TG characterized the thermal properties of the functionalized LDPE. TG studies concluded that the thermal stability of functionalized polymer was increased for both systems. A plausible reaction mechanism was used to explain the experimental results obtained. Non-isothermal crystallization kinetic study was carried out for the both benzamide and benzanilide grafted LDPE.

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