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

Debora Marani; Bhaskar Reddy Sudireddy; Wolff-Ragnar Kiebach; Lotte Nielsen; Sokol Ndoni

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

Debora Marani, Bhaskar Reddy Sudireddy, Wolff-Ragnar Kiebach, Lotte Nielsen, Sokol Ndoni

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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 M_w, M_n, and M_z were determined by gel permeation chromatography (GPC), and then used in a numerical method to evaluate the viscosity molecular weight (M_v) 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 language	English
Journal	Nordic Rheology Society Annual Transactions
Volume	22
Number of pages	8
ISSN	1601-4057
Publication status	Published - 2014
Event	23rd Nordic Rheology Conference - Harpa Concert Hall, Reykjavik, Iceland Duration: 13 Aug 2014 → 14 Aug 2014 Conference number: 23 http://rheology-esr.net/events/nrc-2014-on-iceland/

Conference

Conference	23rd Nordic Rheology Conference
Number	23
Location	Harpa Concert Hall
Country/Territory	Iceland
City	Reykjavik
Period	13/08/2014 → 14/08/2014
Internet address	http://rheology-esr.net/events/nrc-2014-on-iceland/

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title = "Rheological properties of poly(vinylpiyrrolidone) as a function of molecular weight",

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.",

author = "Debora Marani and Sudireddy, {Bhaskar Reddy} and Wolff-Ragnar Kiebach and Lotte Nielsen and Sokol Ndoni",

year = "2014",

language = "English",

volume = "22",

journal = "Nordic Rheology Society Annual Transactions",

issn = "1601-4057",

publisher = "Nordic Rheology Society; 1997",

note = "23rd Nordic Rheology Conference, NCR 2014 ; Conference date: 13-08-2014 Through 14-08-2014",

url = "http://rheology-esr.net/events/nrc-2014-on-iceland/",

}

TY - GEN

T1 - Rheological properties of poly(vinylpiyrrolidone) as a function of molecular weight

AU - Marani, Debora

AU - Sudireddy, Bhaskar Reddy

AU - Kiebach, Wolff-Ragnar

AU - Nielsen, Lotte

AU - Ndoni, Sokol

N1 - Conference code: 23

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

M3 - Conference article

SN - 1601-4057

VL - 22

JO - Nordic Rheology Society Annual Transactions

JF - Nordic Rheology Society Annual Transactions

T2 - 23rd Nordic Rheology Conference

Y2 - 13 August 2014 through 14 August 2014

ER -

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

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