409087.fig.004a
(a)
409087.fig.004b
(b)
409087.fig.004c
(c)
409087.fig.004d
(d)
409087.fig.004e
(e)
409087.fig.004f
(f)
409087.fig.004g
(g)
409087.fig.004h
(h)
409087.fig.004i
(i)
409087.fig.004j
(j)
409087.fig.004k
(k)
409087.fig.004l
(l)
409087.fig.004m
(m)
409087.fig.004n
(n)
409087.fig.004o
(o)
409087.fig.004p
(p)
Figure 4: SEM images of xerogels from SC16-N gels ((a) n-butyl acrylate; (b) petroleum ether; (c) nitrobenzene; (d) acetone; (e) cyclohexanone; (f) cyclopentanone; (g) ethanolamine, resp.) and TC16-N gels ((h) 1,4-dioxane; (i) isopentanol; (j) n-butanol; (k) nitrobenzene; (l) n-propanol; (m) DMF; (n) ethyl acetate; (o) isopropanol; (p) aniline, resp.).