Effect of Oxygen and Initiator Solubility on Admicellar Polymerization of Styrene on Silica Surfaces

Figure 1

FTIR spectra for (a) polystyrene standard ( 6 × 10⁵ g/mol), (b) extracted polystyrene (M/I of 1000, polymerization time of 6 hours), (c) untreated silica, (d) silica modified by deoxygenated admicellar polymerization of styrene (M/I of 1000, polymerization time of 6 hours), and (e) silica modified by the control admicellar polymerization of styrene (M/I of 1000, polymerization time of 6 hours).