Phase Change and Viscosity Effects on a Quartz Crystal Microbalance.

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Title Phase Change and Viscosity Effects on a Quartz Crystal Microbalance.
Author Busfield, Walter Kenneth; Bushell, Gillian Robin; James, Daniel Arthur; Mackay-Sim, Alan; Thiel, David Victor
Journal Name Analyst, The
Year Published 1994
Place of publication UK
Publisher Royal Society of Chemistry
Abstract The mass–frequency dependence for various materials deposited onto the surface of a resonating quartz crystal was investigated. The relationship is linear, but the constant of proportionality is different for different materials deposited. Such frequency changes are commonly described by the Sauerbrey equation, but in this experiment the equation was found to be in error by factors of up to 23. This can be accounted for by changes in surface viscosity. Slow temperature changes of a resonating quartz crystal coated with the polymer Antarox CO-880 revealed a significant frequency minimum at the phase-transition points. This is also attributed to a change in the viscosity of the coating at transition. The phase-transition temperature for this polymer was verified by differential scanning calorimetry. Quartz crystal techniques may provide a simple, accurate method for the measurements of phase-transition temperatures.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.rsc.org/Publishing/Journals/AN/Index.asp
Alternative URI http://dx.doi.org/10.1039/AN9941902005
Volume 119
Page from 2005
Page to 2007
ISSN 0003-2654
Date Accessioned 1995-01-01
Date Available 2009-09-21T05:51:24Z
Language en_AU
Research Centre Centre for Wireless Monitoring and Applications; Eskitis Institute for Drug Discovery; Griffith Medical Research College
URI http://hdl.handle.net/10072/25732
Publication Type Article in Scholarly Refereed Journal
Publication Type Code c1

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