Oxidation of Polypropylene and Effects of Compatibilization of Oxidized Polypropylene

The oxidiation of polypropylene homopolymer in air was performed using dodecanol-1 as an accelator. The experiments were conducted under atmospheric at 180-220 °C. Spectroscopic data indicated the formation of polar groups such as ketones, esters, alcohols, anydrides etc. as determined by FTIR and ESCA. The scanning electron microscopy (SEM) showed the variations of mophology of the oxidation products. The variations of solubility of oxidized polypropylene as compared with the original polypropylene were investigated in solvents such as MEK, THF and toluene. The oxidized PP (OPP) may be used as a compatibilizer in polymer blends. The influence of compatibilization on the dynamic-mechanical polypropylene (PP) binary blends with polyamide-6, Talc and OPP have been investigated. Pressed films of blend PP/OPP, PP/OPP/Talc, PP/OPP/PA6 was examined by dynamic-mechanical analyzer (DMA), TGA and SEM. Mechanical Properties such as tenstile strength, modulus of elasticity, MFI, etc. were measured.