Solution Behavior of Modified Polyethylenimine (PEI) Polymers by Light Scattering Investigations
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- University of Massachusetts Lowell, Research Foundation (US)
- Sponsoring Org.:
- (US)
- OSTI Identifier:
- 822405
- Report Number(s):
- DOE/ER/14764
TRN: US200413%%19
- DOE Contract Number:
- FG07-97ER14764
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 18 Mar 2004
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; LIGHT SCATTERING; MOLECULAR WEIGHT; ORGANIC POLYMERS; SODIUM CHLORIDES; WATER; PH VALUE
Citation Formats
Ekhorutomwen, Sonny A, Sawan, Samuel P, Smith, Barbara F, Robison, Thomas W, and Wilson, Kennard V. Solution Behavior of Modified Polyethylenimine (PEI) Polymers by Light Scattering Investigations. United States: N. p., 2004.
Web. doi:10.2172/822405.
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. United States. https://doi.org/10.2172/822405
Ekhorutomwen, Sonny A, Sawan, Samuel P, Smith, Barbara F, Robison, Thomas W, and Wilson, Kennard V. 2004.
"Solution Behavior of Modified Polyethylenimine (PEI) Polymers by Light Scattering Investigations". United States. https://doi.org/10.2172/822405. https://www.osti.gov/servlets/purl/822405.
@article{osti_822405,
title = {Solution Behavior of Modified Polyethylenimine (PEI) Polymers by Light Scattering Investigations},
author = {Ekhorutomwen, Sonny A and Sawan, Samuel P and Smith, Barbara F and Robison, Thomas W and Wilson, Kennard V},
abstractNote = {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.},
doi = {10.2172/822405},
url = {https://www.osti.gov/biblio/822405},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 18 00:00:00 EST 2004},
month = {Thu Mar 18 00:00:00 EST 2004}
}
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