Table 4. Optical Transparencies of CPI Hybrid Films with Various Organoclay Contents.

	FDN PI				FDN-OH PI
Cloisite 30B in PI (wt %)	thicknessa (μm)	λ0 (nm)	500 nmtrans (%)	YIb	thickness (μm)	λ0 (nm)	500 nmtrans (%)	YI
0 (pure PI)	54	352	89	3	54	312	90	4
0.25	58	354	89	3	57	317	90	4
0.50	53	359	88	5	58	323	89	5
0.75	55	361	85	4	53	323	88	5
1.00	58	361	83	5	56	326	87	6

^aFilm thickness.

^bYellow index.