Table 2. Parameters Obtained from the Simultaneous Fitting of an Analytical Expression of Scattering Intensity Combining Contributions from Spherical Particles and Collapsed Hydrogen-Bonded Polymer Chains^a.

	spherical particle parameters		hydrogen-bonded supramolecular structures parameters
PUD sample	R /nm	σ*	ϕ2 /ϕtot	Rg /nm	ν
H12MDI_DMPA				2.2	0.33
HB50_SS650	17.9	1.21	0.028	2.8	0.31
HB50_SS1000	12.0	1.35	0.105	2.1	0.31
HB50_SS2000	8.3	1.32	0.208	2.2	0.34
HB60_SS650	15.0	1.14	0.108	2.8	0.34
HB60_SS1000	10.1	1.15	0.203	2.8	0.34
HB60_SS2000	9.7	1.19	0.329	2.5	0.32
HB70_SS650	15.3	1.09	0.209	2.9	0.34
HB70_SS1000	13.0	1.14	0.283	2.6	0.34
HB70_SS2000	13.0	1.09	0.394	2.2	0.34

^aR is the geometric mean particle radius with multiplicative standard deviation σ*. The proportion of PU distributed as supramolecular structures is quantified by ϕ₂/ϕ_tot. R_g gives the radius of gyration of these structures, and ν is a structural parameter that indicates solubilization of these polymer-like structures.