Synthesis of Colored Superabsorbent Polymer and Its Use To Demonstrate Convection Currents in Water by Heating

Morio Takaki and Toshiyuki Itoh
Okayama University Faculty of Education, Department of Chemistry, 3-1-1 Tsushimanaka, Okayama 700, Japan
J. Chem. Educ., 1999, 76 (1), p 62
DOI: 10.1021/ed076p62
Publication Date (Web): January 1, 1999

Abstract

Superabsorbent polymer gel is used here to exhibit a convection current of water by heating because with its high absorbent property the gel's density is almost equal to that of water. However, for good demonstration of the experiment it is necessary to use a colored polymer gel that is optimally cross-linked. The synthesis of colored polyacrylic acids for use as a new teaching material is described here.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Organic Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Synthesis
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  • Received: August 03, 2009

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