Teaching Light Scattering to Reinforce Basic Principles

Teaching Light Scattering to Reinforce Basic Principles

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 i...

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Veröffentlicht in:Journal of chemical education 1999-11, Vol.76 (11), p.1534
Hauptverfasser: Russo, Paul S, Fong, Brian, Temyanko, Elena, Ricks, Holly, Poche, Drew S
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container_issue 11
container_start_page 1534
container_title Journal of chemical education
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creator Russo, Paul S
Fong, Brian
Temyanko, Elena
Ricks, Holly
Poche, Drew S
description 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.
doi_str_mv 10.1021/ed076p1534
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title Teaching Light Scattering to Reinforce Basic Principles
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