Literaturnachweis - Detailanzeige
| Autor/inn/en | Pety, Stephen J.; Lu, Hang; Thio, Yonathan S. |
|---|---|
| Titel | Microfluidics Meets Dilute Solution Viscometry: An Undergraduate Laboratory to Determine Polymer Molecular Weight Using a Microviscometer |
| Quelle | In: Chemical Engineering Education, 45 (2011) 2, S.93-100 (8 Seiten)
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0009-2479 |
| Schlagwörter | Plastics; Undergraduate Students; Chemistry; Laboratory Experiments; Science Instruction; College Science; Molecular Structure; Measurement Techniques; Measurement Equipment; Scientific Principles |
| Abstract | This paper describes a student laboratory experiment to determine the molecular weight of a polymer sample by measuring the viscosity of dilute polymer solutions in a PDMS microfluidic viscometer. Sample data are given for aqueous solutions of poly(ethylene oxide) (PEO). A demonstration of shear thinning behavior using the microviscometer is described as well. The results of the implementation of the procedure with undergraduate students are also discussed. (As Provided). |
| Anmerkungen | Chemical Engineering Education, Chemical Engineering Division of ASEE. P.O. Box 142097, Gainesville, FL 32614. Tel: 352-392-0861; Fax: 352-392-0861; e-mail: cee@che.ufl.edu; Web site: http://cee.che.ufl.edu/index.html |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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