List of Articles Silica gel nanoparticles

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  1 - Synthesis of SiO2 Nano particles-Dimethyl Malonate Polymer
  banafsheh gorji allahgholi ghasri allahgholi ghasri
  The goal of this research is synthesis of hybrid inorganic-organic microstructure to form a monolayer with anti-reflective properties. Dimethyl Malonate –Silica gel (DMM-SiO2) composite were synthesized by chemical method from dimethyl malonate (DMM) and silica gel p More

  The goal of this research is synthesis of hybrid inorganic-organic microstructure to form a monolayer with anti-reflective properties. Dimethyl Malonate –Silica gel (DMM-SiO2) composite were synthesized by chemical method from dimethyl malonate (DMM) and silica gel particles with a diameter ~34 nm. The anionic polymerization was applied for the preparation of composite. DMM as monomer polymerizes upon reacting with an initiator (OHin H2O) and terminate by a terminator (H+ in HCl). We modify the anionic polymerization reaction by adding silica gel nanoparticles before initiating polymerization. Variables including SiO2 concentration, surfactant concentration, DMM/SiO2 ratio, and pH of solution have been investigated. The optimal synthesis conditions were obtained by Box-Behnken design (BBD). The results show that reaction should be carried out at ambient temperature and pH 4.5. Sodium dodecyl sulfate (SDS) as surfactant concentration, SiO2 concentration and DMM/SiO2 ratio should be 5 mmol, 2 w.t% and 4.2g/1g, respectively. DMM-SiO2 composite were characterized by Scanning Electron Microscopy (SEM), and Thermogravimetry Analysis (TGA). Manuscript profile