The crystallinity, solubility, degree of swelling, and hygroscopicity of the blends of syndiotactic-rich (st-PVA) and atactic poly(viny1 alcohols) (at-PVA) were studied. The crystallinity of the blends increased with increasing annealing temperature and that of the blends annealed at 200Β°C was large
Orientation of polymer chains in films of syndiotactic-rich poly(vinyl alcohol)
β Scribed by Kazuo Yamaura; Kuniko Takeyama; Tetsuya Tanigami; Shuji Matsuzawa
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 209 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0021-8995
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## Abstract The desorption behavior of iodine in syndiotactic poly(vinyl alcohol) (__s__βPVA) with a syndiotactic diad content of 63.1% iodine film in water was investigated in relation to the solubility of __s__βPVA in water. Despite a low numberβaverage degree of polymerization of 900, the degree
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