Synthesis and characterization of polymethylsilsesqui oxane microspheres by the two-step sol-gel method
AbstractPolymethylsilsesquioxane (PMSQ) microspheres with an average diameter of 30nm to 6μm were prepared from methyltrimethoxysilane (MTMS) by a two-step sol-gel method in the presence of hexadecyl trimethyl ammonium chloride (HTAC). The reaction conditions including the concentration of HTAC, water/MTMS ratio, pH value and the temperature in condensation reaction were examined, and aggregation of the microspheres was not observed during the preparation process. Moreover, the structure and thermal stability of PMSQ microspheres were investigated by FT-IR, XRD, TGA, and so on.
2001 ◽
Vol 18
(5)
◽
pp. 692-694
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2021 ◽
Vol 1053
(1)
◽
pp. 012072