Table 1.

Values of the Shear Modulus G, Bulk Modulus K, Solvent-Polymer Matrix Mixing Parameter χ, and Water Diffusivity D of the BMs as Obtained from the Numerical Fitting Procedure for Two Values of the Indenter and Force Setpoints, Respectively

BM #	G (Pa)		K (Pa)		χ (−)		D (× 10−7 m2/s)
	R = 0.5 μm	R = 3.5 μm	R = 0.5 μm	R = 3.5 μm	R = 0.5 μm	R = 3.5 μm	R = 0.5 μm	R = 3.5 μm
1	1856	540	1125	357	0.42	0.48	0.02	0.30
2	804	192	1476	473	0.44	0.48	0.03	1.50
3	1045	305	1395	435	0.42	0.47	0.02	0.18
4	558	229	1558	461	0.45	0.48	0.09	1.18
5	862	NDa	1456	ND	0.42	ND	0.01	ND
Mean	1025	316	1402	431	0.43	0.48	0.03	0.79
SD	496	156	165	52	0.01	0.01	0.03	0.65

Partial data is available for BM 5 because of the limited thickness of the membrane, which prevented indentation at the highest force setpoint.

^aND, no data.