Bromination, Elimination, and Polymerization:: A 3-Step Sequence for the Preparation of Polystyrene from Ethylbenzene

Elizabeth M. Sanford ^[1] ; Heather L. Hermann ^[1]
1. [1] Hope College
  
  Hope College
  
  City of Holland, Estados Unidos
Localización: Journal of chemical education, ISSN 0021-9584, Vol. 77, Nº 10 (October), 2000, págs. 1343-1343
Idioma: inglés
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Resumen
- 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.