Phase behavior of methacrylic acid, poly(ethylene glycol) methyl ether, and poly(ethylene glycol) methacrylate in aqueous solutions

Dietmar Schwahn; Vitaliy Pipich; Roni Kasher

doi:10.1016/j.polymer.2017.06.011

Phase behavior of methacrylic acid, poly(ethylene glycol) methyl ether, and poly(ethylene glycol) methacrylate in aqueous solutions

Dietmar Schwahn, Vitaliy Pipich, Roni Kasher

Zuckerberg Institute for Water Research

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

3 Scopus citations

Abstract

The main issue of this manuscript is the exploration of the solubility of methacrylic acid (MA), and the oligomers of poly(ethylene glycol) methyl ether (MPEG), poly(ethylene glycol) methacrylate (PEGMA), and a mixture of MA and PEGMA. These solutions obey to the class of associating aqueous solutions as hydrogen bonding plays an essential role. All solutions are miscible at ambient temperature. Only a small fraction of the order of 10⁻⁵ molecules is involved in a process of aggregation forming about 0.4 μm diameter large colloids whose volume fraction enhances above 70 °C. This increase of aggregation is going hand and hand with phase separation of the solution at temperatures at about 70 °C and above. Spinodal and binodal temperatures of the solutions were determined from thermal composition fluctuations following mean field and renormalized 3D-Ising behavior in dependence of the distance from the spinodal phase boundary.

Original language	English
Pages (from-to)	111-123
Number of pages	13
Journal	Polymer
Volume	121
DOIs	https://doi.org/10.1016/j.polymer.2017.06.011
State	Published - 14 Jul 2017

Keywords

Associating polymer solution
Critical behavior of thermal fluctuations
Lower critical solution behavior

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2017.06.011

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title = "Phase behavior of methacrylic acid, poly(ethylene glycol) methyl ether, and poly(ethylene glycol) methacrylate in aqueous solutions",

abstract = "The main issue of this manuscript is the exploration of the solubility of methacrylic acid (MA), and the oligomers of poly(ethylene glycol) methyl ether (MPEG), poly(ethylene glycol) methacrylate (PEGMA), and a mixture of MA and PEGMA. These solutions obey to the class of associating aqueous solutions as hydrogen bonding plays an essential role. All solutions are miscible at ambient temperature. Only a small fraction of the order of 10−5 molecules is involved in a process of aggregation forming about 0.4 μm diameter large colloids whose volume fraction enhances above 70 °C. This increase of aggregation is going hand and hand with phase separation of the solution at temperatures at about 70 °C and above. Spinodal and binodal temperatures of the solutions were determined from thermal composition fluctuations following mean field and renormalized 3D-Ising behavior in dependence of the distance from the spinodal phase boundary.",

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T1 - Phase behavior of methacrylic acid, poly(ethylene glycol) methyl ether, and poly(ethylene glycol) methacrylate in aqueous solutions

AU - Schwahn, Dietmar

AU - Pipich, Vitaliy

AU - Kasher, Roni

PY - 2017/7/14

Y1 - 2017/7/14

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AB - The main issue of this manuscript is the exploration of the solubility of methacrylic acid (MA), and the oligomers of poly(ethylene glycol) methyl ether (MPEG), poly(ethylene glycol) methacrylate (PEGMA), and a mixture of MA and PEGMA. These solutions obey to the class of associating aqueous solutions as hydrogen bonding plays an essential role. All solutions are miscible at ambient temperature. Only a small fraction of the order of 10−5 molecules is involved in a process of aggregation forming about 0.4 μm diameter large colloids whose volume fraction enhances above 70 °C. This increase of aggregation is going hand and hand with phase separation of the solution at temperatures at about 70 °C and above. Spinodal and binodal temperatures of the solutions were determined from thermal composition fluctuations following mean field and renormalized 3D-Ising behavior in dependence of the distance from the spinodal phase boundary.

KW - Associating polymer solution

KW - Critical behavior of thermal fluctuations

KW - Lower critical solution behavior

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DO - 10.1016/j.polymer.2017.06.011

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JO - Polymer

JF - Polymer

ER -

Phase behavior of methacrylic acid, poly(ethylene glycol) methyl ether, and poly(ethylene glycol) methacrylate in aqueous solutions

Abstract

Keywords

ASJC Scopus subject areas

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