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Gelation of syndiotacticity-rich poly(vinyl alcohol)-phenol-water mixture

✍ Scribed by S. Matsuzawa; K. Yamaura; H. Kobayashi

Publisher
Springer
Year
1981
Weight
285 KB
Volume
259
Category
Article
ISSN
0340-255X

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Syndiotacticity-rich poly(vinyl alcohol)
Syndiotacticity-rich poly(vinyl alcohol) fibers spun from N-methylmorpholine-N-oxide/water mixture
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## SYNOPSIS Aqueous NMMO solutions containing NMMO above 50% are good solvents for syndiotacticity-rich poly(viny1 alcohol) (s-PVA). Although water is not a good solvent and dissolves s-PVA at temperatures above 100Β°C, the mixtures dissolve it at temperatures below 100Β°C. s-PVA fibers were prepare

Permeabilities of water, several alcohol
Permeabilities of water, several alcohols, and water/alcohol mixtures through thin films of syndiotactic-rich poly(vinyl alcohol)
✍ Kazuo Yamaura; Shuichi Kirikawa; Nobuhiro Sakuma; Tetsuya Tanigami; Shuji Matsuz πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 454 KB πŸ‘ 2 views

The permeabilities of liquids through syndiotactic-rich poly (vinyl alcohol) (s-PVA) very thin films (about 0.3 pm) scooped up from the interface of air/aqueous solution were compared with that of casting s-PVA films (about 15 pm) . The permeability of water decreased with time and the volume of per

Gelation of poly(vinyl alcohol)/phenol/w
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✍ Kazuo Yamaura; Masayoshi Suzuki; Minako Yamamoto; Rumi Shimada; Tetsuya Tanigami πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 382 KB

## Abstract The light transmittance of the gels of poly(vinyl alcohol) (PVA)/phenol/water solutions was examined for the entire range of phenol/water content. Excellent transparency was found for the gels with phenol contents of 70–95 vol %. In full consideration of the results for the transparency