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Inverse suspension polymerization of sodium acrylate

✍ Scribed by Guojie Wang; Min Li; Xinfang Chen

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
214 KB
Volume
65
Category
Article
ISSN
0021-8995

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✦ Synopsis

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 as reaction time, crosslinking agent, and dispersant on deionized-water and saline solution absorbability, average particle size, and distribution of the sol-gel of the resin is discussed. The deionizedwater and saline solution absorbabilities of sodium polyacrylate prepared at proper conditions were 300-1200 and 50-120, respectively; the number-average particle size was 10-50 mm and the gel portion was 20-85% by weight.

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