Siloxane-based polymers (polysiloxanes) exhibit a range of volume, viscosity, and pressure-viscosity behaviors that are strongly influenced by the macromolecular structure. In this report, a combination of extant rheological models is applied to develop a molecular-rheological modeling formalism that predicts polysiloxane rheological properties, such as specific volume, which means density, viscosity, and pressure-viscosity index variations with macromolecular structure, pressure, and temperature. Polysiloxane molecular features are described in terms of alkyl branch length L, pendant type J, density of branch functional monomers Q, and degree of polymerization DP. Both new and published data are used for model parameter determination and validation. Several siloxane-based polymers with alkyl, aryl, alkyl-aryl, cycloalkyl, and halogenated branches were synthesized to examine the modeled relationship between their molecular structures and rheological behaviors.
Skip Nav Destination
Article navigation
January 2014
Research-Article
Modeling Polysiloxane Volume and Viscosity Variations With Molecular Structure and Thermodynamic State
Thomas J. Zolper,
Thomas J. Zolper
1
Department of Mechanical Engineering,
e-mail: ThomasZolper2010@u.northwestern.edu
Northwestern University
,Evanston, IL 60208
e-mail: ThomasZolper2010@u.northwestern.edu
1Corresponding author.
Search for other works by this author on:
Manfred Jungk,
Manfred Jungk
Dow Corning GmbH,
Rheingaustr. 34
,Weisbaden 65201
, Germany
Search for other works by this author on:
Tobin J. Marks,
Tobin J. Marks
Department of Chemistry,
Northwestern University
,Evanston, IL 60208
Search for other works by this author on:
Yip-Wah Chung,
Yip-Wah Chung
Department of Mechanical Engineering,
Department of Materials Science
and Engineering,
Department of Materials Science
and Engineering,
Northwestern University
,Evanston, IL 60208
Search for other works by this author on:
Qian Wang
Qian Wang
Department of Mechanical Engineering,
Northwestern University
,Evanston, IL 60208
Search for other works by this author on:
Thomas J. Zolper
Department of Mechanical Engineering,
e-mail: ThomasZolper2010@u.northwestern.edu
Northwestern University
,Evanston, IL 60208
e-mail: ThomasZolper2010@u.northwestern.edu
Manfred Jungk
Dow Corning GmbH,
Rheingaustr. 34
,Weisbaden 65201
, Germany
Tobin J. Marks
Department of Chemistry,
Northwestern University
,Evanston, IL 60208
Yip-Wah Chung
Department of Mechanical Engineering,
Department of Materials Science
and Engineering,
Department of Materials Science
and Engineering,
Northwestern University
,Evanston, IL 60208
Qian Wang
Department of Mechanical Engineering,
Northwestern University
,Evanston, IL 60208
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received January 25, 2013; final manuscript received August 1, 2013; published online October 7, 2013. Assoc. Editor: Xiaolan Ai.
J. Tribol. Jan 2014, 136(1): 011801 (12 pages)
Published Online: October 7, 2013
Article history
Received:
January 25, 2013
Revision Received:
August 1, 2013
Citation
Zolper, T. J., Jungk, M., Marks, T. J., Chung, Y., and Wang, Q. (October 7, 2013). "Modeling Polysiloxane Volume and Viscosity Variations With Molecular Structure and Thermodynamic State." ASME. J. Tribol. January 2014; 136(1): 011801. https://doi.org/10.1115/1.4025301
Download citation file:
Get Email Alerts
Static Characteristics of Hybrid Water-Lubricated Herringbone Groove Journal Bearing
J. Tribol (April 2025)
Related Articles
Correlation of Polysiloxane Molecular Structure to Shear-Thinning Power-Law Exponent Using Elastohydrodynamic Film Thickness Measurements
J. Tribol (July,2015)
Transient Elastohydrodynamic Lubrication Film Thickness During Normal Approach Considering Shear-Thinning and Linear Piezoviscous Oils
J. Tribol (April,2015)
Related Proceedings Papers
Related Chapters
Processing/Structure/Properties Relationships in Polymer Blends for the Development of Functional Polymer Foams
Advances in Multidisciplinary Engineering
Viscosity Measurements of Polymer Modified Asphalts
Polymer Modified Asphalt Binders
Rheology and Soft Clay Engineering
Marine Geotechnology and Nearshore/Offshore Structures