شماره ركورد كنفرانس :
4518
عنوان مقاله :
Investigating the In situ Free Radical Polymerization Kinetics of PS in the Prescence of Silica Nanoparticles
Author/Authors :
Mehdi Salami-Kalajahi Department of Polymer Engineering and Color Technology - Amirkabir University of Technology , Vahid Haddadi-Asl Department of Polymer Engineering and Color Technology - Amirkabir University of Technology , Hossein Roghani-Mamaqani Department of Polymer Engineering and Color Technology - Amirkabir University of Technology , Mohammad Najafi Polymer Science and Technology Division - Research Institute of Petroleum Industry (RIPI), Tehran
كليدواژه :
Polystyrene , Aerosil 200 , Nanocomposite , Free Radical Polymerization
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
A number of batch polymerizations were performed to study the effect of pristine nanoparticle
loading on the polymerization kinetic of styrene. For this, Conversion, molecular weight and
polydispersity index (PDI) were monitored during polymerization to investigate the reaction
kinetics. According to results, adding nanoparticles causes no considerable change in the kinetic
curves, while there is an optimum value for nanoparticles loading in which the monomer
conversion and molecular weight reaches to its maximum level. However, increasing silica content
resulted in an increase in PDI values. The best improvement of monomer conversion is achieved
for nanocomposites containing 5 wt. % silica nanoparticles.
