. 2022 Apr 17;55(8):3051–3062. doi: 10.1021/acs.macromol.2c00379

Table 1. Summary of the Various Structural Parameters Calculated from SAXS Analysis of a 1.0% w/w Aqueous Dispersion of PEG₄₅-PHBMA₂₀ Nano-Objects at 20, 55 or 65 °C^a.

temp/°C	morphology	D_s/nm^b	D_w/nm^c	D_v/nm^d	T_m/nm	x_sol
20	spheres	13.8 ± 2.2				0.001
55	worms		11.5 ± 2.0			0.001
65	vesicles			119 ± 46	10.7 ± 0.6	0.18

D_s is the volume-average sphere diameter, D_w is the volume-average worm cross-sectional diameter, D_v is the overall volume-average diameter of the vesicles, T_m is the mean vesicle membrane thickness, and x_sol is the volume fraction of water within the hydrophobic PHBMA core/membrane.

Using a spherical micelle model,¹²⁰D_s was calculated via D_s = 2R_s + 4R_g, where R_s is the mean spherical micelle core radius and R_g represents the radius of gyration of the PEG₄₅ stabilizer block.

Using a worm-like model,¹²⁰D_w was calculated via D_w = 2R_w + 4R_g, where R_w is the mean volume-average cross-sectional worm radius.

Using a vesicle model,¹²⁰D_v was calculated via D_v = 2R_m + T_m + 4R_g, where R_m is the mean volume-average radius from the center of the vesicle to the center of the membrane.

Table 1. Summary of the Various Structural Parameters Calculated from SAXS Analysis of a 1.0% w/w Aqueous Dispersion of PEG45-PHBMA20 Nano-Objects at 20, 55 or 65 °Ca.

Table 1. Summary of the Various Structural Parameters Calculated from SAXS Analysis of a 1.0% w/w Aqueous Dispersion of PEG₄₅-PHBMA₂₀ Nano-Objects at 20, 55 or 65 °C^a.