کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5363663 | 1388304 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A novel method for the synthesis of polystyrene-graft-silica particles using random copolymers based on styrene and triethoxyvinylsilane A novel method for the synthesis of polystyrene-graft-silica particles using random copolymers based on styrene and triethoxyvinylsilane](/preview/png/5363663.png)
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.
Highlights⺠Silica particles were grafted with poly(styrene-co-triethoxyvinylsilane). ⺠PS-g-silica particles presents high dispersability in organic solvents. ⺠We investigated the effect of the copolymers weight on the grafting density.
Journal: Applied Surface Science - Volume 257, Issue 20, 1 August 2011, Pages 8581-8586