S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Chemical and Biological Engineering (화학생물공학부) Journal Papers (저널논문_화학생물공학부)
Formation and Structure of Polyacrylamide–Silica Nanocomposites by Sol–Gel Process
Cited 65 time in Web of Science Cited 66 time in Scopus
- Issue Date
- Journal of Applied Polymer Science, 2002, 83, 1817–1823
- polyacrylamide–silica nanocomposites ; atomic force microscopy ; hydrogen bonding ; silica gel ; nanocomposite coating
- The formation of nanocomposites by the sol–gel reaction of tetraethoxysilane
(TEOS) in polyacrylamide (PAAm) is studied. The nanocomposites are prepared in
aqueous solution. Fourier transform IR spectroscopy shows that substantial hydrogen
bonding occurs in the nanocomposites. The fracture surfaces of the nanocomposites are
observed by atomic force microscopy (AFM) as a function of the TEOS content. The
AFM images reveal that the PAAm–silica nanocomposite exhibits particle–matrix
morphology. It is also found that aggregate formation is more dominant than the
particle growth with the TEOS contents. The solution of composite precursor is also
applied to spin coating. Furthermore, during the calcination there is an observable
change in the silica networks, and then a microinterconnected structure is generated.
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