Effects of time, temperature, and pressure in the vicinity of the glass transition of a swollen polymer

Wojciech Ogieglo, L. Upadhyaya, Matthias Wessling, Arian Nijmeijer, Nieck Edwin Benes

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

In-situ spectroscopic ellipsometry is used for the dynamic study of thermally perturbed thin polystyrene films, swollen with n-octane or n-decane. The thermal evolution of the swollen films reveals pronounced changes both in equilibrium and kinetic properties. Upon vitrification, a kinetically arrested swollen matrix isobserved. This phenomenon is related to the excess energy term in the chemical potential of the solvent, associated with the non-equilibrium status of the swollen polymer matrix. The swollen polystyrene – n-decane system shows no measurable compression when exposed to hydrostatic pressures up to 50 bar, neither above or below the glass transition temperature. A slight compression is observed for a glassy polystyrene film in pressurized water. This compression corresponds to partial relaxation of excess free volume. The results are of importance for membrane applications in which penetrant-swollen polymer membrane layers are operated under high pressures.
Original languageEnglish
Pages (from-to)80-85
JournalJournal of membrane science
Volume464
DOIs
Publication statusPublished - 2014

Fingerprint

Polystyrenes
Glass
Glass transition
polystyrene
Polymers
Pressure
Temperature
glass
polymers
Compaction
penetrants
membranes
Vitrification
Membranes
vitrification
Hydrostatic Pressure
Spectroscopic ellipsometry
Transition Temperature
Chemical potential
Free volume

Keywords

  • METIS-309112
  • IR-94172

Cite this

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title = "Effects of time, temperature, and pressure in the vicinity of the glass transition of a swollen polymer",
abstract = "In-situ spectroscopic ellipsometry is used for the dynamic study of thermally perturbed thin polystyrene films, swollen with n-octane or n-decane. The thermal evolution of the swollen films reveals pronounced changes both in equilibrium and kinetic properties. Upon vitrification, a kinetically arrested swollen matrix isobserved. This phenomenon is related to the excess energy term in the chemical potential of the solvent, associated with the non-equilibrium status of the swollen polymer matrix. The swollen polystyrene – n-decane system shows no measurable compression when exposed to hydrostatic pressures up to 50 bar, neither above or below the glass transition temperature. A slight compression is observed for a glassy polystyrene film in pressurized water. This compression corresponds to partial relaxation of excess free volume. The results are of importance for membrane applications in which penetrant-swollen polymer membrane layers are operated under high pressures.",
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author = "Wojciech Ogieglo and L. Upadhyaya and Matthias Wessling and Arian Nijmeijer and Benes, {Nieck Edwin}",
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Effects of time, temperature, and pressure in the vicinity of the glass transition of a swollen polymer. / Ogieglo, Wojciech; Upadhyaya, L.; Wessling, Matthias; Nijmeijer, Arian; Benes, Nieck Edwin.

In: Journal of membrane science, Vol. 464, 2014, p. 80-85.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Effects of time, temperature, and pressure in the vicinity of the glass transition of a swollen polymer

AU - Ogieglo, Wojciech

AU - Upadhyaya, L.

AU - Wessling, Matthias

AU - Nijmeijer, Arian

AU - Benes, Nieck Edwin

PY - 2014

Y1 - 2014

N2 - In-situ spectroscopic ellipsometry is used for the dynamic study of thermally perturbed thin polystyrene films, swollen with n-octane or n-decane. The thermal evolution of the swollen films reveals pronounced changes both in equilibrium and kinetic properties. Upon vitrification, a kinetically arrested swollen matrix isobserved. This phenomenon is related to the excess energy term in the chemical potential of the solvent, associated with the non-equilibrium status of the swollen polymer matrix. The swollen polystyrene – n-decane system shows no measurable compression when exposed to hydrostatic pressures up to 50 bar, neither above or below the glass transition temperature. A slight compression is observed for a glassy polystyrene film in pressurized water. This compression corresponds to partial relaxation of excess free volume. The results are of importance for membrane applications in which penetrant-swollen polymer membrane layers are operated under high pressures.

AB - In-situ spectroscopic ellipsometry is used for the dynamic study of thermally perturbed thin polystyrene films, swollen with n-octane or n-decane. The thermal evolution of the swollen films reveals pronounced changes both in equilibrium and kinetic properties. Upon vitrification, a kinetically arrested swollen matrix isobserved. This phenomenon is related to the excess energy term in the chemical potential of the solvent, associated with the non-equilibrium status of the swollen polymer matrix. The swollen polystyrene – n-decane system shows no measurable compression when exposed to hydrostatic pressures up to 50 bar, neither above or below the glass transition temperature. A slight compression is observed for a glassy polystyrene film in pressurized water. This compression corresponds to partial relaxation of excess free volume. The results are of importance for membrane applications in which penetrant-swollen polymer membrane layers are operated under high pressures.

KW - METIS-309112

KW - IR-94172

U2 - 10.1016/j.memsci.2014.04.013

DO - 10.1016/j.memsci.2014.04.013

M3 - Article

VL - 464

SP - 80

EP - 85

JO - Journal of membrane science

JF - Journal of membrane science

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