A superwater-absorbent sodium polyacrylate was synthesized by inverse suspension polymerization, using Span60 as the dispersant, cyclohexane as the organic phase, N,N-methylene bisacrylamide as the crosslinking agent, and potassium persulfate as the initiator. The effect of reaction conditions such
Inverse suspension polymerization of sodium acrylate: Synthesis and characterization
β Scribed by C. Mayoux; J. Dandurand; A. Ricard; C. Lacabanne
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 331 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0021-8995
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The emulsion copolymerization of styrene and sodium acrylate is reported using either a water-soluble initiator (potassium persulfate, or KPS), or an oil-soluble one [2,2-azoisobutyronitrile (AIBN)]. Reaction rates are fast with both KPS and AIBN. With KPS, conversions ΓΊ90% are achieved in 50 min, w
## The kinetics of the K2S208-initiated inverse emulsion polymerization of aqueous sodium acrylate solutions in kerosene with Span 80 as the emulsifier has been studied. The conversion-time curves are S-shaped. The following expressions have been obtained for the maximum rate of polymerization and