Synthesis of Organic-Inorganic Hybrid Microspheres and the Corresponding Mesoporous Silica Nanoparticles
作者：Bin Liu, Xiaomeng Fu, Dan Wang, and Xinlin Yang*,
關(guān)鍵字：Mesoporous microsphere, Inorganic/polymer hybrid, Distillation precipitation polymerization
論文來(lái)源：期刊
具體來(lái)源：J. Colloid Interface Sci., 411 (1), 98-104 (2013). DOI: 10.1016/j.jcis.2013.08.042
發(fā)表時(shí)間：2013年
Poly(methacrylic acid-co-3-(methacryloxy)propyltrimethoxysilane) (P(MAA-co-MPS)) organic–inorganic hybrid microspheres were prepared by distillation–precipitation copolymerization of MAA and MPS in
acetonitrile in absence of any surfactant and additive. The resultant hybrids had a spherical shape when the MPS inorganic precursor was varied from 0% to 60% in the comonomers during the polymerization.
The hybrid microspheres can be facilely cross-linked via the hydrolysis of methoxy groups of polyMPS network and further self-condensation of the hydroxyl groups of silanols. As a result, the hybrid microspheres
were facilely converted to mesoporous silica particles via the removal of the organic component through calcination. The narrow dispersed mesoporous silica had a high surface area of 554.2 m2/g as well as the average pore size of 8 nm and pore volume of 0.24 cm3/g. The corresponding microspheres were characterized by TEM, FT-IR, TGA, and nitrogen sorption–desorption.