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ERIC Number: EJ1161311
Record Type: Journal
Publication Date: 2017-Nov
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0021-9584
Synthesis of Polystyrene and Molecular Weight Determination by [superscript 1]H NMR End-Group Analysis
Wackerly, Jay Wm.; Dunne, James F.
Journal of Chemical Education, v94 n11 p1790-1793 Nov 2017
A procedure for the solution polymerization of styrene using di-"tert"-butyl peroxide (DTBP) as the initiator is described. The use of DTBP allows for end-group analysis by [superscript 1]H NMR spectroscopy and calculation of the number-average molecular weight of the polymer. This experiment was designed as a laboratory introduction to polymer chemistry for second-year undergraduate students. The highest-order focus was to get students to derive an equation to calculate the number-average molecular weight by [superscript 1]H NMR spectral analysis.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A