Molecular weight fractionation of poly(methyl methacrylate) using Gas Anti-Solvent techniques

Emma M. Coen; John F. Quinn; Fariba Dehghani; Neil R. Foster; Thomas P. Davis

doi:10.1016/S0032-3861(03)00288-X

Molecular weight fractionation of poly(methyl methacrylate) using Gas Anti-Solvent techniques

Emma M. Coen, John F. Quinn, Fariba Dehghani, Neil R. Foster, Thomas P. Davis

Research output: Contribution to journal › Article › Research › peer-review

13 Citations (Scopus)

Abstract

The solubility of poly(methyl methacrylate) in acetone, expanded by carbon dioxide, was studied at 20 °C for a variety of molecular weights and architectures. The suitability of the Gas Anti-Solvent method for fractionation of poly(methyl methacrylate) was investigated with positive results. The threshold pressure for precipitation of various monodisperse molecular weights was investigated, and the effectiveness of this technique to fractionate a polymer with a broad molecular weight distribution was evaluated. The pressure required to precipitate polymers was found to be low, generally below 60 bar.

Original language	English
Pages (from-to)	3477-3481
Number of pages	5
Journal	Polymer
Volume	44
Issue number	12
DOIs	https://doi.org/10.1016/S0032-3861(03)00288-X
Publication status	Published - 23 May 2003
Externally published	Yes

Keywords

Fractionation
Polymer processing
Supercritical fluids

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10.1016/S0032-3861(03)00288-X

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abstract = "The solubility of poly(methyl methacrylate) in acetone, expanded by carbon dioxide, was studied at 20 °C for a variety of molecular weights and architectures. The suitability of the Gas Anti-Solvent method for fractionation of poly(methyl methacrylate) was investigated with positive results. The threshold pressure for precipitation of various monodisperse molecular weights was investigated, and the effectiveness of this technique to fractionate a polymer with a broad molecular weight distribution was evaluated. The pressure required to precipitate polymers was found to be low, generally below 60 bar.",

keywords = "Fractionation, Polymer processing, Supercritical fluids",

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T1 - Molecular weight fractionation of poly(methyl methacrylate) using Gas Anti-Solvent techniques

AU - Coen, Emma M.

AU - Quinn, John F.

AU - Dehghani, Fariba

AU - Foster, Neil R.

AU - Davis, Thomas P.

PY - 2003/5/23

Y1 - 2003/5/23

N2 - The solubility of poly(methyl methacrylate) in acetone, expanded by carbon dioxide, was studied at 20 °C for a variety of molecular weights and architectures. The suitability of the Gas Anti-Solvent method for fractionation of poly(methyl methacrylate) was investigated with positive results. The threshold pressure for precipitation of various monodisperse molecular weights was investigated, and the effectiveness of this technique to fractionate a polymer with a broad molecular weight distribution was evaluated. The pressure required to precipitate polymers was found to be low, generally below 60 bar.

AB - The solubility of poly(methyl methacrylate) in acetone, expanded by carbon dioxide, was studied at 20 °C for a variety of molecular weights and architectures. The suitability of the Gas Anti-Solvent method for fractionation of poly(methyl methacrylate) was investigated with positive results. The threshold pressure for precipitation of various monodisperse molecular weights was investigated, and the effectiveness of this technique to fractionate a polymer with a broad molecular weight distribution was evaluated. The pressure required to precipitate polymers was found to be low, generally below 60 bar.

KW - Fractionation

KW - Polymer processing

KW - Supercritical fluids

UR - http://www.scopus.com/inward/record.url?scp=0038248980&partnerID=8YFLogxK

U2 - 10.1016/S0032-3861(03)00288-X

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VL - 44

SP - 3477

EP - 3481

JO - Polymer

JF - Polymer

IS - 12

ER -

Molecular weight fractionation of poly(methyl methacrylate) using Gas Anti-Solvent techniques

Abstract

Keywords

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