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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Modified silicas with different structure of grafted methylphenylsiloxane layer

Fig. 2

XPS spectra of silica modified with PMPS using different synthetic protocols. Spectra present the changes in binding energy C1s and Si2p for composites of silica modified with PMPS using 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) by chemical assembly process in the presence of dimethyl carbonate at PMPS/DMC ratio according to the schemes “L-S” (samples 1 and 6), “M” (samples 2 and 5) and “S-L” (samples 3 and 4) as represented in Table 1

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