Scaling equation for viscosity of polydimethylsiloxane in ethyl acetate: From dilute to concentrated solutions

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dc.contributor.authorAgasty, Airit
dc.contributor.authorWiśniewska, Agnieszka
dc.contributor.authorKalwarczyk, Tomasz
dc.contributor.authorKoynov, Kaloian
dc.contributor.authorHołyst, Robert
dc.contributor.organizationInstitute of Physical Chemistry, Polish Academy of Sciencesen
dc.contributor.organizationMax Planck Institute for Polymer Research, Mainz, Germanyen
dc.date.accessioned2022-01-12T08:07:57Z
dc.date.available2022-01-12T08:07:57Z
dc.date.issued2020
dc.description.abstractRheology of polymer solutions suffers from lack of universal model of viscosity applicable across wide range of concentrations. Here we build such a model on the basis of measured viscosity of polydimethylosiloxane (PDMS) in ethyl acetate in a wide range of polymer concentrations: from dilute up to highly concentrated solutions. The relationship between viscosity and different polymer parameters in solution such as coil size, correlation length ξ, monomer–solvent and monomer–monomer interaction parameter were established experimentally as a function of concentrations [from 0.001g∕cm3 to 8.000g∕cm3], temperature [in a range 283–303K] and molecular masses [9–139kg∕mol]. Entanglement onset at the crossover from dilute to semi-dilute solution as well as the solvent–monomer contact reduction at the crossover from semi-dilute to concentrated regime are captured by the model. This model is in accordance with the Eyring rate theory for activated processes.en
dc.identifier.citationPolymer 203 (2020) 122779. https://doi.org/10.1016/j.polymer.2020.122779en
dc.identifier.doi10.1016/j.polymer.2020.122779
dc.identifier.issn0032-3861
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0032386120306078
dc.identifier.urihttps://depot.ceon.pl/handle/123456789/20913
dc.language.isoen
dc.publisherElsevieren
dc.rightsUznanie autorstwa 4.0 Międzynarodowe*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectrheologyen
dc.subjectPDMSen
dc.subjectDLSen
dc.titleScaling equation for viscosity of polydimethylsiloxane in ethyl acetate: From dilute to concentrated solutionspl
dc.typearticleen
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