Room Temperature Imprint Using Crack-Free Monolithic SiO₂-PVA Nanocomposite for Fabricating Microhole Array on Silica Glass

Table 1

BET specific surface area, total pore volume, and mean pore diameter of the SiO₂-PVA nanocomposites prepared from 7 and 30 nm silica particles via an SiO₂-PVA suspension as a function of pH.

pH value of suspension	BET surface area/m^2 g^−1	Total pore volume/cm^3 g^−1	Mean pore radius/nm
Aerosil 300 (mean diameter of 7 nm)
2.3	147	1.08	14.7
3.0	141	0.95	13.5
3.4	142	0.94	13.2
4.0	146	0.93	12.7
4.7	144	0.89	12.4
Aerosil 50 (mean diameter of 30 nm)
2.3	32	0.15	9.6
3.1	31	0.08	5.2
3.3	31	0.10	6.6
5.0	32	0.11	6.8