Mikro akışkan sistem kullanılarak polyhedral oligomeric silsesquioxane (poss) tabanlı organik-inorganik parçacık sentezi

Utilizing microfluidic systems inevitably changes tools used in chemistry due to advantages such as handling differential volume, controlled reaction environment, enhanced mixing performance, less time required to complete reaction. Hence microfluidic reactors become more popular among microparticle synthesis tools. This research work presents synthesis of organosilica nano-cage structures, namely Polyhedral oligomeric silsesquioxane (POSS) particles, based on organicinorganic hybrid microparticles by utilizing dispersion and emulsion polymerization methods. Firstly, poly(M-POSS) microparticles are synthesized via dispersion polymerization method by using continuous flow microreactors, one of which is operated on a hot plate and the other one has temperature controlled dual zone with embedded electrodes. Synthesized microparticles in microreactors are characterized in terms of morphology, thermal behavior and surface chemical structure. Effects of different parameters such as monomer, initiator and stabilizer amount are presented. Secondly, in a temperature controlled continuous flow microfluidic reactor with embedded thin fi lm electrode, epoxy functional-POSS microparticles have been synthesized via emulsion polymerization method. Heater for the microfluidic reactor is designed by COMSOL Multiphysics and manufactured in cleanroom to achieve homogeneous temperature distribution. Effects of flow rate, temperature and concentration of monomers are presented. In addition, same microfluidic reactor without electrodes immersed in oil bath and polymerization is observed and results are compared with the electrode integrated reactor.