The properties of poly(vinyl alcohol) (PVA) hydrogels containing saccharides (D-xylose, D-fructose, D-glucose, and maltose) were examined. The effect of the addition of saccharides to PVA hydrogels on their melting temperatures was remarkable when the gels were chilled at 0Β°C with saccharide content
Effect of emulsion polymerization conditions of vinyl acetate on the viscosity fluctuation and gelation behavior of aqueous poly(vinyl alcohol) solution
β Scribed by Won Seok Lyoo; Sung Min Lee; Kang Koo; Joon-Seok Lee; Han Do Ghim; Jae Pil Kim; Jinwon Lee
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 137 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0021-8995
- DOI
- 10.1002/app.2034
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## Abstract The use of weak alkalies such as sodium carbonate (Na~2~CO~3~), sodium bicarbonate (NaHCO~3~) and their 1 : 1 molar mixture, and strong alkalies such as sodium hydroxide (NaOH) and sodium methoxide (NaOMe) as pH controllers in suspension polymerization of vinyl acetate monomer (VAM) has
The emulsifier-free emulsion polymerization of vinyl acetate was carried out in the absence or in the presence of some electrolytes such as sodium chloride, calcium chloride, aluminum chloride, sodium sulphate, and ammonium phosphate at 50ΠC using potassium persulphate-sodium bisulphite as a redox i