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Gelation of poly(vinyl alcohol)/phenol/water solutions and gel spinning

✍ Scribed by Kazuo Yamaura; Masayoshi Suzuki; Minako Yamamoto; Rumi Shimada; Tetsuya Tanigami

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
382 KB
Volume
58
Category
Article
ISSN
0021-8995

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✦ Synopsis

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 and melting temperature of the gels and the viscosity and gelation ability of solutions, the PVA solutions of 75 vol % phenol content were selected for the gel spinning. The maximum dynamic moduli of drawn filaments at 25Β°C (room temperature) were 42 GPa (15x) for atactic PVA and 45 GPa (14x) for syndiotacticity‐rich PVA. Β© 1995 John Wiley & Sons, Inc.

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