Solution Behavior of Modified Polyethylenimine (PEI) Polymers by Light Scattering Investigations

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The eight average molecular weights, as well as other characteristics such as the second virial coefficients and root-mean-square (RMS) radii of gyration of poly (ethyleneimine) (PEI) and various derivatives, have been determined in solution light scattering studies. The solution dynamics of PEI and carboxylated and phosphorylated derivatives were studied a pH of 3.3, 7.0 and 10.0. Measurements were made in freshly distilled and de-ionized water as well as in 0.1 M, 1 M and 5-M solutions of sodium chloride in water. Molecular weights were calculated from Berry plots. The purified polymer, PEI-1, gave a molecular weight of 39,600 g/mol., while ... continued below

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Ekhorutomwen, Sonny A.; Sawan, Samuel P.; Smith, Barbara F.; Robison, Thomas W. & Wilson, Kennard V. March 18, 2004.

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The eight average molecular weights, as well as other characteristics such as the second virial coefficients and root-mean-square (RMS) radii of gyration of poly (ethyleneimine) (PEI) and various derivatives, have been determined in solution light scattering studies. The solution dynamics of PEI and carboxylated and phosphorylated derivatives were studied a pH of 3.3, 7.0 and 10.0. Measurements were made in freshly distilled and de-ionized water as well as in 0.1 M, 1 M and 5-M solutions of sodium chloride in water. Molecular weights were calculated from Berry plots. The purified polymer, PEI-1, gave a molecular weight of 39,600 g/mol., while the same polymer, which was not purified, PEI-2, has MW of 43,100 g/mol.

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OSTI as DE00822405

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  • Other Information: PBD: 18 Mar 2004

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  • Report No.: DOE/ER/14764
  • Grant Number: FG07-97ER14764
  • DOI: 10.2172/822405 | External Link
  • Office of Scientific & Technical Information Report Number: 822405
  • Archival Resource Key: ark:/67531/metadc787525

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  • March 18, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 3, 2017, 5:34 p.m.

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Ekhorutomwen, Sonny A.; Sawan, Samuel P.; Smith, Barbara F.; Robison, Thomas W. & Wilson, Kennard V. Solution Behavior of Modified Polyethylenimine (PEI) Polymers by Light Scattering Investigations, report, March 18, 2004; United States. (digital.library.unt.edu/ark:/67531/metadc787525/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.