Formation of Hierarchical Porous Structure via Breath Figure Method

Figure 2

Influence of the nanoparticle (37% SiOH) concentration on the final porous structures obtained from the PS solution (30 mg/mL). (a) 1 mg/mL, (b) 2 mg/mL, and (c) 5 mg/mL.

(a)

(b)

(c)