Optical Study on Poly(methyl methacrylate)/Poly(vinyl acetate) Blends

Figure 6

Spectral distribution of refractive index (𝑛) for (a) pure PMMA, (b) a blend of (50/50 PMMA/PVAc), and (c) pure PVAc before (—) and after exposure to filtered (- - -) and UV radiation (…) for 24 hours.

(a)

(b)

(c)