Table 2. Degree of Overall Microphase Separation, Diffuse-microphase Boundary Thickness Parameters for 1,4-H₆XDI-based PUEs

	Degree of overall microphase separation	Boundary diffusensess	Diffuse-microphase boundary thickness/nm		d-spacing from Bragg’s law/nm	d-spacing from 3D correlation function/nm
	Δ η 2 ' / Δ η c 2	Δη^2″/Δη^2′-1	Sigmoidal, σ	Linear, E	d-spacing from Bragg’s law/nm	d-spacing from 3D correlation function/nm
HX-30-10/0	0.39	1.77	0.84	2.09	17.4	18.1
HX-30-8/2	0.23	0.66	0.62	1.56	16.3	17.9
HX-20-10/0	0.29	0.18	0.35	0.88	16.4	16.7
MD-20-8/2	0.18	0.21	0.36	0.89	14.3	14.7