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. 2021 Mar 22;7(1):32. doi: 10.3390/gels7010032

Figure 1.

Figure 1

Schematic representation of solvent penetration in a glassy film (1-d Case II diffusion in the x direction). ϕ0, ϕG, and ϕeq are the solvent volume fractions in the glassy film, at the Glassy–Gel interface (GGI), and at the Gel–Solvent interface (GSI), respectively.