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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > October  >
In the Laboratory
Bromination, Elimination, and Polymerization: A 3-Step Sequence for the Preparation of Polystyrene from Ethylbenzene
Elizabeth M. Sanford and Heather L. Hermann
Department of Chemistry, Hope College, Holland, MI 49422-9000
Cover
October 2000
Vol. 77 No. 10
p. 1343
Abstract
An organic chemistry lab that introduces students to polymer chemistry is presented. Students complete a radical bromination of ethylbenzene, which is followed by elimination to give styrene. A radical polymerization is then completed to produce polystyrene. This 3-step, 2-lab-period experiment covers classic reactions learned in the first semester of organic chemistry and simultaneously introduces students to polymerization, precipitation, and molecular weight determination.
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Additional background information and a detailed procedure are available as supplemental material.
*  Contents JCE2000p1343W.doc (Microsoft Word 6.0/95, Macintosh)
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More Information
*  Citation
 Sanford, Elizabeth M.; Hermann, Heather L. J. Chem. Educ. 2000 77 1343.
*  Keywords
 Free Radicals; Organic Chemistry; Organic Synthesis; Polymer Chemistry; Laboratory Instruction
*  History
 Created:
Last Updated:		 September 22, 2000
August 31, 2005
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