Photoinitiation of polymerization of Acrylamide by Titanium Dioxide Aqueous Suspension System

Abstract

The acrylamide monomer is photopolymerized by aqueous Suspension of TiO2 semiconductor (Anatase) at room temperature and light intensity (medium pressure mercury lamp.) of 19.44 mW/cm2. Several parameters were explored that affected the photopolyerization process in this system, and these are:-1- TiO2 concentration . 2- Monomer concentration . 3- The effect of Argon and Oxygen gases atmosphere . 4- The temperature elevation from (250C) to (650C) . 5- lrradiation .The produced polymer was characterized by FT-IR spectrum, and the spectra were also performed for both polyacrylamide initiated by TiO2and k2S2O8 free radical photo – initator The complete similarity between the two FT-ir spectra reflects that the polymer is atactic, and the method of polymerization was generally a free radical polymerization.