The extent of colour development in an aqueous poly(vinyl alcohol) (PVA)Èiodine complex solution increased with increasing syndiotacticity up to a certain syndiotactic content, then decreased with increasing syndiotacticity. The complex formation depended on the content of the syndiotactic pentad se
On the poly(vinyl alcohol)–iodine complexes
✍ Scribed by Hiroyuki Takamiya; Yumi Tanahashi; Tosiki Matsuyama; Tetsuya Tanigami; Kazuo Yamaura; Shuji Matsuzawa
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 480 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0021-8995
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📜 SIMILAR VOLUMES
The effect of the dissolved state of poly(vinyl alcohol) (PVA) molecules in water on the color development due to PVA-iodine complexes was investigated at each given PVA and iodine concentration using two kinds of syndiotactic-rich PVA (S-PVA) which are unstable in water because of the formation of
## Abstract The desorption behavior of iodine in syndiotactic poly(vinyl alcohol) (__s__‐PVA) with a syndiotactic diad content of 63.1% iodine film in water was investigated in relation to the solubility of __s__‐PVA in water. Despite a low number‐average degree of polymerization of 900, the degree