Qasar Saleem2016-04-122016-04-122015https://escholar.umt.edu.pk/handle/123456789/1734SUPERVISOR: DR. SAMMIA SHAHIDThe aim of my project is to synthesize and analyze Polylactic acid-grafted TiO2 nanocomposite. When dispersed at the nanoscale TiO2 can behave as see through transparent UV filters and thermomechanical materials. The synthesis plan involved three stages. First, dispersion of TiO2 white powder in water/ethanol solvent system. Second grafting TiO2 surface by oligomers of lactic acid aimed at changing its surface features. Third polymerization of lactic acid monomer with grafted TiO2 in the presence of anhydrous stannous chloride as catalyst. Polylactic acid grafted-TiO2 nanocomposite was synthesized by melt poly condensation in situ of lactic acid onto titanium oxide (TiO2) nanoparticles surface. The product was characterized by TGA, DSC, FTIR, and UV analysis and degradation observation.MS ThesisLactic acidTiO2 nanocompositesPolylactic acid-graftedThesis