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Table 1 Carbon content, bonding density, and surface area of grafted neat organosiloxanes and their mixtures with DMC or DEC at the SiO2 surface

From: A 29Si, 1H, and 13C Solid-State NMR Study on the Surface Species of Various Depolymerized Organosiloxanes at Silica Surface

Sample Carbon content, wt% Bonding density ([Si(CH3R1O)), groups/nm2 where R1 = CH3, H, CH2CH2C6H9 SBET, m2/g
SiO2 (A–300) 0 0 278
SiO2/PMHS 2.42 ± 0.08 5.5 266
SiO2/PMHS+DMC 2.60 ± 0.04 6.0 253
SiO2/PMHS+DEC 2.17 ± 0.11 5.0 254
SiO2/PDMS 5.96 ± 1.17 7.2 220
SiO2/PDMS+DMC 6.04 ± 0.01 7.4 167
SiO2/PDMS+DEC 2.28 ± 0.20 2.5 235
SiO2/CPDMS 0.57 ± 0.04 0.1 274
SiO2/CPDMS+DMC 1.77 ± 0.01 0.4 248
SiO2/CPDMS+DEC 2.98 ± 0.28 0.7 261