Table 3.

Structural parameters of the l-PBA-b-PEO-b-PBA micelle obtained from the quantitative analysis of scattering data with various model approaches.

Structural Parameter				l-PBA-b-PEO-b-PBA Micelle
				Spherical CFS	Two-Phase Ellipsoid	Three-Phase Ellipsoid
Re,micellea (nm)				6.50	6.30	6.26
	rcoreb (nm)			1.85	2.30	1.73
		tf,corec (nm)			0.60	0.40
		tcoronad (nm)		4.65	4.00	4.45
		tf.coronae (nm)		0.89	1.95
			td,coronaf (nm)			0.80
			tf,d.coronag (nm)			0.31
			ts.coronah (nm)			3.65
			tf,s.coronai (nm)			1.74
ε j				1.0	0.79	0.83
ξk (nm)				1.71	0.70	0.55
Rgl (nm)				5.03	4.56	4.59
ρcorem (g/cm3)				1.08	1.08	1.08
ρcoronan (g/cm3)				0.060	0.013	0.054
N agg o				13.5	20.5	9.1

^a Micelle radius in the equatorial direction. ^b Radius of the core. ^c Thickness of the fuzzy part (interfaced with the dense corona) of the core. ^d Radius of the corona. ^e Thickness of the fuzzy part (interfaced with solvent) of the corona. ^f Thickness of dense corona. ^g Thickness of the fuzzy part (interfaced with the soft corona) of the dense corona. ^h Thickness of the solvated corona. ⁱ Thickness of the fuzzy part (interfaced with solvent) of the solvated corona. ^j Ellipsoidicity ratio (ε = polar radius/equatorial radius). ^k Average correlation length of density fluctuation (i.e., blob radius) in the entire corona region. ^l Radius of gyration of micelle. ^m The density of micelle core is assumed to be the density of linear PBA homopolymer in films. ⁿ Density of corona estimated from the aggregation number of copolymer chains N_agg, the number-average molecular weight of the PEO block, and the total volume of the corona. ^o Aggregation number of copolymer chains in a single micelle, which was estimated from the core volume and the assumption that the density of the core composed of PBA block is same with that of the corresponding ρ_core values.