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- W2554768139 abstract "Grafting of polymers onto graphite oxide sheets (GO) has been widely studied in recent years due to the numerous applications of GO-based composites. Herein, polyisoprene (PI) chains were anchored on the surface of GO by in situ cationic polymerization using a “grafting through” approach with allyltrimethoxysilane-modified GO (GO-ATMS). First, the functionalization of GO sheets through the hydrolysis-condensation of allyltrimethoxysilane (ATMS) molecules was qualitatively evidenced by infra-red spectroscopy and X-ray photoelectron spectrometry and a weight content of 4% grafted ATMS was calculated from thermogravimetric analysis. Then, isoprene was in situ polymerized through a one-pot cationic mechanism by using a highly water-dispersible Lewis acid surfactant combined catalyst. For comparison, it was shown that the cationic polymerization of isoprene in presence of un-functionalized GO sheets led to a polyisoprene weight content on the solid filler divided by 3 compared to GO-ATMS. Finally, the compounding of the modified GO/PI composites was performed at a processing temperature of 80 °C with 2 phr and 15 phr loadings and it was shown a decrease of the air permeability coefficient of 27% for the vulcanizates with 15 phr loading." @default.
- W2554768139 created "2016-11-30" @default.
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- W2554768139 creator A5072179489 @default.
- W2554768139 creator A5076644904 @default.
- W2554768139 date "2017-02-01" @default.
- W2554768139 modified "2023-10-17" @default.
- W2554768139 title "In situ emulsion cationic polymerization of isoprene onto the surface of graphite oxide sheets" @default.
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- W2554768139 doi "https://doi.org/10.1016/j.apsusc.2016.11.059" @default.
- W2554768139 hasPublicationYear "2017" @default.
- W2554768139 type Work @default.