Controlling Foam Morphology of Poly(methyl methacrylate) via Surface Chemistry and Concentration of Silica Nanoparticles and Supercritical Carbon Dioxide Process Parameters

Table 1

Surface coverage of silica nanoparticles according to different reaction mechanisms as calculated from (1).

Mechanism	I	II	III
F	68.2%	72.6%	77.6%
FF	112.2%	119.4%	127.5%