Synthesis of Amphiphilic Silica Nanocomposites

doi:10.3724/SP.J.1077.2011.01085

Abstract

Abstract: Silica modified by γ-glycidyloxypropyltrimethoxysilane was used as precursor to prepare amphiphilic silica nanocomposites by quaterisation. The structure of the as-prepared products was characterized by means of fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and X-ray photoelectron spectroscope (XPS). Transmission electron microscopie (TEM) was used to characterize the morphology of the nanocomposites. The results showed that the content of the organic components at the silica surface calculated from TGA data was 11wt%. TEM provided direct evidence for the well amphiphilicity, and the same conclusion was confirmed by the photographs of the pristine SiO₂and surface-modified SiO₂ nanocomposites in water/toluene mixed layers.

Key words: nano-SiO₂, surface modification, nanocomposites, amphiphilicity

CLC Number:

TQ127
O613

JIA Zhong-Qi, LI Xiao-Xuan, XIAO Zheng-Hui, WANG Wen-Ping, CAO Nan-Nan. Synthesis of Amphiphilic Silica Nanocomposites[J]. Journal of Inorganic Materials, 2011, 26(10): 1085-1089.

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