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Thermal Degradation and Identification of Heat-Sensitive Polymers. Applications of Pyrolysis and Distillation and Instrumental Methods of Analysis

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Stuart C. Clough and Emma W. Goldman

Department of Chemistry, University of Richmond, Richmond, VA 23173

J. Chem. Educ., 2005, 82 (9), p 1378

DOI: 10.1021/ed082p1378

Publication Date (Web): September 1, 2005

Section:

History, Education, and Documentation

Abstract

An experiment for undergraduate teaching laboratories is described that involves the identification of samples of polystyrene and poly(methyl methacrylate). This involves the thermal degradation of the polymers (a destructive distillation) into their respective monomers. The monomers are then identified using infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and gas chromatography–mass spectrometry.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Inquiry-Based / Discovery Learning

Keywords (Subject):

Nonmajor Courses

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Analytical Pyrolysis−Chromatography: Something Old, Something New
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  Journal of Chemical Education2010 87 (5), 467-469
  Despite a long history of use across multiple disciplines, analytical pyrolysis is rarely taught in undergraduate curricula. We briefly review some interesting applications and discuss the three types of analytical pyrolyzers available commercially. We ...
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Teaching NMR Spectroscopy in a General Education Course for Nonmajors
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2007 969 (), 48-61
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  "Chemistry 111: Chemical Structure Determination." is a general education course for students not intending to major in the sciences. The course was developed in response to new general education requirements - specifically, to fullfill a need for one ...
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