Hydrogel blends were prepared from water-soluble polymers of poly(vinyl alcohol~inyl acetate) and poly(vinyl pyrrolidone). The method of preparation was optimized and different compositions of blends were characterized. The effect of thermal treatment and the introduction of an aldehydic crosslinkin
Crystallization of water in swollen poly(vinyl alcohol)-poly(vinyl pyrrolidone) blends
β Scribed by J. Rault; Z. H. Ping; Q. T. Nguyen
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 220 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0170-0839
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π SIMILAR VOLUMES
Blends of crystallizable poly(vinyl alcohol) (PVA) with poly(vinyl pyrrolidone) (PVP) were studied by differential scanning calorimetry (d.s.c.). PVA with different degrees of hydrolysis (88 and 99 wt%) and PVP with different molecular weights (10 000 and 360 000 g mo1-1) were used. The blends exhib
Transparent hydrogels were prepared by blending solutions of poly(vinyl alcohol-vinyl acetate) with either poly(acrylic acid) or poly(vinyl pyrrolidone) in the presence of glutaraldehyde as a crosslinking agent. The network obtained from the poly(vinyl pyrrolidone) system was subjected to various th