Abstract
A method to calculate the iodine desorption of high molecular weight syndiotactic PVA (s-PVA)/iodine film in water was suggested, which was achieved by measuring the weight loss of s-PVA/iodine film and the solubility of s-PVA film after immersion in water. The degree of solubility of s-PVA film in water at 80°C was below 3% and the iodine desorption of s-PVA/iodine film at the same temperature was limited to below 13%, while atactic PVA film is completely soluble over 50°C. The desorption of iodines in water was strongly affected by the dissolution of PVA. The longer soaking time gave the larger desorption of iodine regardless of immersion temperature. The iodine desorption of s-PVA/iodine film in hot water decreased with increasing drawing temperature and draw ratio.
| Original language | English |
|---|---|
| Pages (from-to) | 503-507 |
| Number of pages | 5 |
| Journal | Polymer Testing |
| Volume | 20 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2001 |