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Contact Angle Goniometry as a Tool for Surface Tension Measurements of Solids, Using Zisman Plot Method. A Physical Chemistry Experiment
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Abstract
The paper describes a physical chemistry experiment for measurement of surface tension of solids. It includes description of the Zisman-plot method for obtaining the surface tensions of solids as well as a detailed experimental procedure for surface tension measurements using contact angle goniometry. Four surfaces were analyzed and the critical surface tension (gc) for each of them was obtained. Excellent reproducibility was achieved despite measurement of less accurate Young's contact angles. The experiment includes an extensive data analysis section combined with graphical interpretation of the results. It can be included in an undergraduate physical chemistry laboratory sequence on its own or combined with existing experiments pertaining to surface phenomena.
Keywords (Audience):
Upper-Division UndergraduateKeywords (Domain):
Polymer ChemistryKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
Surface ScienceCiting Articles
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This article has been cited by 6 ACS Journal articles (5 most recent appear below).
Contact Angle Measurements Using a Simplified Experimental Setup
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Modern Developments in the Physical Chemistry Laboratory
Samuel A. Abrash2007 973 (), 115-151Modern Developments in the Physical Chemistry Laboratory
Samuel A. Abrash2007 973 (), 115-151Developments in the physical chemistry laboratory since the publication of the germinal text by Schwenz and Moore (1) are categorized and reviewed. The categories examined include modern instrumentation, current topics in chemistry, integrated ...
Highly Photosensitive Surface Relief Gratings Formation in a Liquid Crystalline Azobenzene Polymer: New Implications for the Migration Process
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Nobuyuki Zettsu, Toshinobu Ogasawara, Ryusuke Arakawa, Susaku Nagano, Takashi Ubukata, and Takahiro SekiMacromolecules2007 40 (13), 4607-4613We have recently demonstrated a markedly photosensitive surface relief gratings (SRG) formation in thin films of liquid crystalline azobenzene-containing polymers, which proceeds from a cis-rich state of the azobenzene [Zettsu et al. Adv. Mater. 2001, 13, ...
Axisymmetric Liquid Hanging Drops
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Tatiana Yu. Latychevskaia , Erich C. MeisterJournal of Chemical Education2006 83 (1), 117The formation of liquid drops delivered from a circular capillary has found application in drop-volume tensiometers ranging from the early stalagmometer to more recent computer-controlled instruments. Although the phenomenon of drop formation can be ...
An Inexpensive and Accurate Tensiometer Using an Electronic Balance
Manuel Dolz , Jesús Delegido , María-Jesús Hernández and Julio PellicerJournal of Chemical Education2001 78 (9), 1257An Inexpensive and Accurate Tensiometer Using an Electronic Balance
Manuel Dolz , Jesús Delegido , María-Jesús Hernández and Julio PellicerJournal of Chemical Education2001 78 (9), 1257A method for measuring surface tension of liquid-air interfaces that consists of a modification of the du Noüy tensiometer is proposed. An electronic balance is used to determine the detachment force with high resolution and the relative displacement ring/...
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- Received: August 03, 2009
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