Table 1. Molecular Parameters of the Polystyrene-Tethered Silica Particles^a.

	grafting characteristics		particles	films
sample	σ (nm–2)	N	h* (nm)	h# (nm)	ϕPS
DP1300	0.53	1300	59 ± 4	63 ± 8	0.86 ± 0.04
DP2480	0.39	2480	83 ± 7	87 ± 12	0.93 ± 0.03
DP530	0.27	530	18 ± 6	19 ± 3	0.56 ± 0.02
DP1170	0.08	1170	15 ± 4	11 ± 6	0.50 ± 0.02

^ah*: brush height determined by SEM images in Figure S1; h^#: brush height determined by TEM images in Figure S6; ϕ_PS: volume fraction of PS is determined by different methods (see Table S1).