Polyacrylamide soil conditioners

Prevention of Soil Crusting. Acid-based fertilizers such as Unocal s N/Furic (a mixture of urea with sulfuric acid), acidic polymers such as FMC s Spersal (a poly(maleic acid) derivative originally developed to treat boiler scale) (58), the anionic polyacrylamides described previously, as weU as lower molecular weight analogues such as Cytec s Aerotil L Soil Conditioner, have all been used successfully in at least some circumstances to prevent the formation of soil cmsts. It is difficult to prove benefits in the laboratory, and field tests may give variable results depending on local weather conditions. 

S. N. Floerger, "Polymer Soil Conditioners," undated product Hterature, Saint Etienne, Erance describes functions and uses of cross-linked anionic polyacrylamides in agriculture. 

Interest in the chemistry of water-soluble polymers (polyelectrolytes) has been continually increasing during the past 45 years. The tremendous scope of utility for water-soluble polymers has led to a vigorous search for new materials and the rapid development of polyelectrolytes into a dynamic field of industrial research. Growth in this field has been especially rapid since 1960 and today, many companies are engaged in synthesis and applications research on polyelectrolytes that are primarily used in four main marketing areas water treatment, paper, textiles, and oil recovery [1]. Polyacrylamide gel was also used as soil conditioner [2-4]. 

A. Wallace, Use of water-soluble polyacrylamide for control of furrow irrigation-induced soil erosion , in Handbook of Soil Conditioners, Substances That Enhance the Physical... 

Friction reducer Polyacrylamide Mineral oil Minimizes friction between the fluid and the pipe Water treatment, soil conditioner Make-up remover, laxative, candy... 

Wallace, A., Abouzamzam, A.M., and Cha, J.W., 1986, Interactions between a Polyacrylamide and a Polysaccharide as Soil Conditioners when Applied Simultaneously. Soil Sci 141 374-376. 

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