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Fate of acrylamide monomer following application of polyacrylamide to cropland

Barvenik, F.W. and Sojka, R.E. and Lentz, R.D. and Andrawes, F.F. and Messner, L.S. (1996) Fate of acrylamide monomer following application of polyacrylamide to cropland. In: Sojka, R.E. and Lentz, R.D. (eds.) Managing irrigation-induced erosion and infiltration with polyacrylamide. University of Idaho Miscellaneous Publication No. 101-96. pp. 103-110.

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Abstract

Acrylamide (AMD) is the basic monomeric unit used in the production of a major class of water soluble polymers, generically termed polyacrylamides (PAMs). The structural formula of AMD is shown in Fig. 1. Under the proper conditions and with suitable catalysts, AMD can polymerize with other molecules of AMD, or with other vinyl monomers to yield products with extremely high molecular weights. PAMs with molecular weights in excess of 10 million, i.e. with chain lengths of more than 105,000 monomeric units, are produced commercially. By utilizing the appropriate comonomers or by postreaction with other reagents, these polymers may be cationic, nonionic. or in the case of those used to control soil erosion, anionic. The anionic reaction product of AMD and a salt of acrylic acid is shown in Fig. 2. The same chemical structure can also be produced by hydrolysis of the nonionic homopolymer of AMD or by hydrolysis of polyacrylonitrile.

Item Type: Technical Bulletin
NWISRL Publication Number: 0912
Additional Information: USDA-ARS, Kimberly, Idaho.
Subjects: Polyacrylamide (PAM) > Water-soluble PAM (WSPAM) > Application Strategies
Mass Import - autoclassified (may be erroneous)
Depositing User: Michelle Wayment
Date Deposited: 20 Nov 2010 21:58
Last Modified: 25 Oct 2016 19:26
Item ID: 1192
URI: https://eprints.nwisrl.ars.usda.gov/id/eprint/1192

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