539457.fig.001a
(a)
539457.fig.001b
(b)
539457.fig.001c
(c)
539457.fig.001d
(d)
539457.fig.001e
(e)
539457.fig.001f
(f)
539457.fig.001g
(g)
Figure 1: Optical micrographs of a PEO-b-PS film with initial thickness of 43.9 nm annealed at 393 K for (a) 0 min, (b) 1 min, (c) 2 min, (d) 4 min, (e) 8 min, and (f) 20 min. And (g) radius of hole as a function of annealing time.