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Theoretical aspects of the soil-conditioning activity of polymers



Theoretical aspects of the soil-conditioning activity of polymers



Soil Sci 79(4): 283-292



The soil-conditioning activities of many water-soluble polymers on Miami silt loam were estimated from their effects on the water-percolation rate and the amount of aggregation. It was found to be a function both of the number and the type of functional groups present. The relative effects of the amide, carboxyl, and sulfonic acid groups were found to be approximately 0.8, 1.0, and 1.6 and there was found to be an opt. number per polymer weight unit. The effect of molecular weight was also studied in the case of sulfonated polystyrenes and it was found that activity increased rapidly with molecular weight to a max. at approximately 1,400,000 and then fell off slowly.

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Accession: 013904343

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DOI: 10.1097/00010694-195504000-00006


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