Determination of the complex shear modulus of polymer solutions with piezoelectric resonators

Literature Information

Publication Date
DOI 10.1039/A903596F
Impact Factor 3.676
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Abstract

The new procedure, which was worked out for the determination of complex shear moduli of polymer solutions, comprises an experimental setup working with impedance measurements at liquid covered quartz crystals (network analysis in the MHz range) and a calibration of these sensors concerning their surface roughness and an additional damping from the coupling of shear and compressional waves. As an example the frequency dispersion of the viscosity and shear modulus of aqueous poly(ethylene oxide) and dextran solutions is determined. The steady state value of the viscosity, which depending on concentration (0.1–40 wt.%) lies between 1 and 20 mPa s decreases by about 50% at 90 MHz.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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