Fig. 1
From: Modified silicas with different structure of grafted methylphenylsiloxane layer
FTIR spectra of silicas with attached PMPS (samples 1–6) using different modification protocols and scheme (Table 1). The illustrations show the IR spectra of composites obtained by protocol 1 (samples 1–3, vol% of the modifying mixture at each stage 25/35/40) and protocol 2 (samples 4–6, vol% of the modifying mixture at each stage 40/35/25). The spectra for samples 2 and 5 are located according to the quantity of the modifying mixture at the first stage when the ratio of PMPS/DMC in the modifying mixture at different stages of modification was equal to 5.5