Polystyrene/mesoporous diatomite composites by in situ simultaneous reverse and normal initiation technique for atom transfer radical polymerization |
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| Authors: | Khezrollah Khezri Yousef Fazli |
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| Institution: | 1.Young Researchers and Elites Club, Central Tehran Branch,Islamic Azad University,Tehran,Iran;2.Department of Chemistry, Faculty of Science, Arak Branch,Islamic Azad University,Arak,Iran |
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| Abstract: | Mesoporous diatomite platelets were employed to synthesize different polystyrene/diatomite composites by in situ polymerization of styrene via simultaneous reverse and normal techniques of atom transfer radical polymerization. Furrier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, scanning and transmission electron microscopy, gas and size exclusion chromatography were used to examine characteristics of polymer and composite. Addition of 3 wt% pristine mesoporous diatomite leads to increase of conversion from 79 to 93%, while control over molecular weight characteristics become worse. |
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