Rheological properties of poly(vinylpiyrrolidone) as a function of molecular weight

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Abstract

Different grades of poly (vinylpyrrolidone) (PVP) were studied as dispersant for gadolinium doped cerium oxide (CGO) in ethanol-based colloidal dispersions. The average molecular weights Mw, Mn, and Mz were determined by gel permeation chromatography (GPC), and then used in a numerical method to evaluate the viscosity molecular weight (Mv) via an empirically modified Mark-Houwink-Sakurada (MHS) equation. The MHS equation parameters (a and K), and the polydispersity correction factor (qMHS) were also evaluated. Molecular weight was found to affect only the amount of PVP required for achieving full stabilized dispersions Indeed, no influence on the packing properties was observed.
Original languageEnglish
JournalNordic Rheology Society Annual Transactions
Volume22
Number of pages8
ISSN1601-4057
Publication statusPublished - 2014
Event23rd Nordic Rheology Conference - Harpa Concert Hall, Reykjavik, Iceland
Duration: 13 Aug 201414 Aug 2014
Conference number: 23
http://rheology-esr.net/events/nrc-2014-on-iceland/

Conference

Conference23rd Nordic Rheology Conference
Number23
LocationHarpa Concert Hall
CountryIceland
CityReykjavik
Period13/08/201414/08/2014
Internet address

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