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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > November  >
In the Laboratory
Effect of Plasticizers on the Properties of Polystyrene Films
Jeffrey Csernica and Alisha Brown
Bucknell University, Department of Chemical Engineering, Lewisburg, PA 17837
Cover
November 1999
Vol. 76 No. 11
p. 1526
Abstract
An experiment is described in which polystyrene films containing various levels of plasticizers are prepared by solution-casting onto steel test panels. These films are subsequently tested for hardness using a pencil hardness technique, impact resistance using a drop weight test, and glass transition temperature using differential scanning calorimetry. All three plasticizers tested cause measurable changes in the physical properties of the plastic films, although the extent of the effects as a function of concentration varies dramatically among the plasticizers. Concepts of plasticization and interpretation of test results are discussed.
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*  Citation
 Csernica, Jeffrey; Brown, Alisha. J. Chem. Educ. 1999 76 1526.
*  Keywords
 Polymer Chemistry; Materials Science; Laboratory Instruction; Thermal Analysis
*  History
 Created:
Last Updated:		 October 12, 1999
November 22, 2005
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