Viscosity of polyvinyl alcohol
β Scribed by D. W. Levi; P. C. Scherer; K. Washimi; W. L. Hunter
- Publisher
- John Wiley and Sons
- Year
- 1959
- Tongue
- English
- Weight
- 91 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
## Abstract A study of the calcification of the polyvinyl alcohol/polyvinyl pyrrolidone (PVA/PVP) hydrogels during their exposure to a calcium chloride solution or a simulated body fluid has been carried out. On the basis of the experiments, using a twoβcompartment permeation cell, the diffusion of
Crystalline polyvinyl alcohol (PVA) polymer and low-crystallinity polyvinyl alcohol-methyl acrylate copolymer (PVA-MA) were examined as sustained-release tablet excipients with theophylline as a model drug. By blending of different proportions of the crystalline polymer and the low-crystallinity cop