. 2021 Feb 25;13(5):696. doi: 10.3390/polym13050696

Table 2.

Water vapor transmission rate, moisture content, and film solubility of PLA and Chitosan–PLA films.

Composition	Water Vapor Transmission Rate (g mm/m² day kPa)	Moisture Content (%)	Film Solubility (%)
PLA	0.53 ± 0.00 ^d	0.26 ± 0.37 ^b	0.82 ± 0.68 ^a
0.5% CH–PLA	0.71 ± 0.03 ^c	1.68 ± 0.32 ^a	1.73 ± 1.01 ^a
1% CH–PLA	0.96 ± 0.02 ^b	2.09 ± 1.81 ^a	0.49 ± 1.33 ^a
2% CH–PLA	1.25 ± 0.36 ^a	2.62 ± 0.35 ^a	0.23 ± 0.97 ^a

0.5% CH–PLA, 1% CH–PLA, and 2% CH–PLA: PLA containing 0.5%, 1%, 2% chitosan, respectively. Data are presented as mean ± SD (n = 3). Different superscript in the same column indicates significant difference (p < 0.05).