Introduction A translucent UV protecting poly (methyl methacrylate) (PMMA)/TiO2 nanocomposite has been fabricated using anatase TiO2 nanoparticles by solution method. The myristic acid capped titania nanoparticles were synthesized via a simple sol-gel method, involving hydrolysis of titanium tetra isopropoxide (TTIP). So prepared nanoparticles were characterized by ultravioletvisible (UVVis), photoluminescence (PL), fourier transform infrared (FTIR) and RAMAN spectroscopy. Morphology was studied with scanning electron microscope (SEM) and transmission electron microscope (TEM). Crystal phases were analyzed by X-Ray diffraction (XRD) measurements. The BET surface area was temperature dependant. % wt. loss was found to be about less than 6%. Similarly, the TiO2/ PMMA nanocomposites were characterized by above tools. This nanocomposite film was tested for UV-shielding application via prevention of photochemical reaction between silver nitrate and Pyrrole under UVC irradiation. The films used for the shielding purpose were further analyzed by UV-Vis absorption and IR spectroscopy and by scanning electron microscope (SEM) to understand the effect of Pyrrole vapors on the film. The nanocomposite with ≤ 1.0 wt % of TiO2 showed improved thermal stability, high see through and optimum UV-shielding efficiency in the present case.