A method for rheological measurements of air sensitive samples

The rheology of air or moisture sensitive liquids, gels, and glasses requires complicated rheometer-in-glovebox laboratory setups. Here, we demonstrate the use of a heavier-than-air cover gas, sulfur hexafluoride, and the design of a cover gas container that can attach to the lower geometry plate of...

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Bibliographic Details
Published inReview of scientific instruments Vol. 95; no. 2
Main Authors Russell, Ben A., Wynne, Klaas
Format Journal Article
LanguageEnglish
Published United States American Institute of Physics 01.02.2024
Subjects
Aluminum chloride
Gels
Glove boxes
Ionic liquids
Moisture
Reaction products
Rheological properties
Rheology
Rheometers
Sulfur hexafluoride
Temperature dependence
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Summary:The rheology of air or moisture sensitive liquids, gels, and glasses requires complicated rheometer-in-glovebox laboratory setups. Here, we demonstrate the use of a heavier-than-air cover gas, sulfur hexafluoride, and the design of a cover gas container that can attach to the lower geometry plate of any rheometer to carry out rheology experiments on air-sensitive liquids and soft solids. Rheological measurements of air-reactive ionic liquid trimethylsulfonium bromide–AlCl3, moisture sensitive titanium(IV) propoxide, and glycerin demonstrate the effectiveness of the cover-gas method for loading samples on acquiring correct temperature dependent viscosity data of the sample in the absence of reaction products.
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ISSN:0034-6748
1089-7623
1089-7623
DOI:10.1063/5.0169326