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1999
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November
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In the Laboratory
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Teaching Light Scattering to Exemplify and Reinforce Basic Principles
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Drew S. Poche
Department of Chemistry and Physics, Southeastern Louisiana University, Hammond, LA 70402
Paul S. Russo, Brian Fong, Elena Temyanko, and Holly Ricks
Department of Chemistry and Macromolecular Studies Group, Louisiana State University, Baton Rouge, LA 70803
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November 1999
Vol. 76 No. 11
p. 1534
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| Abstract |
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The fundamental equations used in the static light scattering analysis of polymer solutions are introduced with explanation of their foundation in thermodynamics. A simple link between the ideal gas law, osmotic pressure, and the static light scattering technique is developed, showing how concepts introduced in freshman chemistry for gases and reinforced in physical chemistry for solutions of small molecules can be extended naturally to a difficult problem of enormous practical importance: the characterization of large, macromolecular chains. Other important concepts, such as wave interference, spatial frequency, and stratagems for handling data are also discussed in the context of the static light scattering experiment.
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| More Information |
 Citation |
Poche, Drew S.; Russo, Paul S.; Fong, Brian; Temyanko, Elena; Ricks, Holly. J. Chem. Educ. 1999 76 1534.
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Keywords |
Polymer Chemistry; Computer Assisted Instruction; Lasers / Laser Spectroscopy; Molecular Properties / Structure; Teaching / Learning Aids
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History |
Created:
Last Updated: |
October 12, 1999
June 23, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
1999
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November
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1534
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