762732.fig.003a
(a)
762732.fig.003b
(b)
762732.fig.003c
(c)
762732.fig.003d
(d)
762732.fig.003e
(e)
762732.fig.003f
(f)
762732.fig.003g
(g)
Figure 3: SEM images of xerogels: (a) S-PC14 in ethanolamine; (b)-(c) S-PC16 in aniline and nitrobenzene; (d)-(e) S-PC18 in nitrobenzene and ethanolamine; (f)-(g) N-PC14 and N-PC18 in ethanolamine.