Table 1. Diffusion Coefficients, Partition Coefficients, and Volume Fractions for DCP and DMMP and Polyurethane Thin Films.

CWA simulant	diffusion coefficient (cm2/s)		partition coefficient (K)	volume fraction (ψ1)
	sorption	desorption
dichloropentane (DCP)	1 × 10–13 ± 48%	2 × 10–9 ± 52%	4.0 × 105 ± 16%	0.26 ± 0.05
dimethyl methylphosphonate (DMMP)	1 × 10–12 ± 43%	1 × 10–11 ± 37%	2.3 × 105 ± 32%	0.10 ± 0.01