The Preparation of a UV-Light-Absorbing Polymer: A Project-Oriented Laboratory Experiment for the Introductory Organic Chemistry Curriculum
A laboratory experiment is described that combines organic synthesis, spectroscopy, and polymer chemistry and is suitable for the sophomore organic chemistry curriculum. In this three-week sequence, students synthesize and characterize the UV-absorber 2-(2',4'-dimethylbenzoyl)benzoic acid...
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Published in | Journal of chemical education Vol. 76; no. 11; p. 1523 |
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Main Authors | , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Easton
Division of Chemical Education
01.11.1999
American Chemical Society |
Subjects | |
Online Access | Get full text |
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Summary: | A laboratory experiment is described that combines organic synthesis, spectroscopy, and polymer chemistry and is suitable for the sophomore organic chemistry curriculum. In this three-week sequence, students synthesize and characterize the UV-absorber 2-(2',4'-dimethylbenzoyl)benzoic acid and incorporate it into films of polymethylmethacrylate. The project exposes students to a variety of techniques and topics including UV-vis, nuclear magnetic resonance and IR spectroscopy, free radical polymerization, vacuum filtration, use of a separatory funnel for extraction and washing, melting point determination, recrystallization, reflux, and Friedel-Crafts acylation. |
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ISSN: | 0021-9584 1938-1328 |
DOI: | 10.1021/ed076p1523 |