A novel method for the synthesis of polystyrene-graft-silica particles using random copolymers based on styrene and triethoxyvinylsilane |
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| Authors: | Natalia A. AgudeloLeon D. Perez Betty L. Lopez |
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| Affiliation: | a Grupo Ciencia de los Materiales, Institute of Chemistry, University of Antioquia, Medellín, Colombia
b Department of Materials Engineering, University of Antioquia, Calle 62 No. 52-59 SIU Lab 310, Medellin, Colombia |
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| Abstract: | In the present research, random copolymers based on triethoxyvinylsilane (TEVS) and styrene (St) are synthesized and structurally characterized. According to the reactivity ratios of the monomers determined by infrared analysis; St tends to form blocks whilst TEVS is expected to be incorporated as isolated units. A sample of poly(styrene-co-triethoxyvinylsilane) synthesized at low conversion using a monomer feeding ratio St:TEVS of 2:3 was used as macrosilane in the synthesis of polystyrene-g-silica particles. The grafting reaction was confirmed by infrared spectroscopy, thermogravimetric analysis and by the evaluation of the morphological characteristics of the hybrid particles. |
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| Keywords: | Silica Random copolymers Hybrid materials Polystyrene-grafted silica particles |
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