Swelling of thin polymer films: understanding the mechanisms and dynamics

Kristianne Tempelman

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

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Abstract

Thin polymer films applied in organic solvent applications, such as coatings or thin selective membrane layers often show a decline in their performance over a period of time, making them unsuitable for long-term applications. The reason for this decline in performance can often be attributed to the swelling and instability of thin polymer films in organic solvents. At this moment there is still a poor understanding of the mechanisms behind the swelling and instability of high-performance polymers when in contact with an organic solvent and how these mechanisms change over time. As a result, predictions on the performance of thin polymer films in organic solvent applications are limited, preventing significant improvements in the membrane performance. The work described in this thesis provides a contribution to the understanding of the swelling dynamics of thin polymer films exposed to an organic solvent. This thesis discusses fundamental aspects, such as the accuracy of spectroscopic ellipsometry with respect to in situ thin polymer film swelling. Also, the swelling mechanisms and dynamics in glassy polymers are discussed using spectroscopic ellipsometry and broadband dielectric spectroscopy as measurement tools. More towards membrane applications, this thesis describes the swelling of a new potential barrier material, poly(PDMS-POSSimde) and reveals an underlying cause of membrane failure of polysulfone-based desalination membranes in water-toluene mixtures.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Benes, N.E., Supervisor
Award date30 Jan 2019
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-4709-3
DOIs
Publication statusPublished - 30 Jan 2019

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Polymer films
Swelling
Organic solvents
Thin films
Membranes
Spectroscopic ellipsometry
Polymers
Dielectric spectroscopy
Toluene
Desalination
Coatings
Water

Cite this

Tempelman, Kristianne . / Swelling of thin polymer films : understanding the mechanisms and dynamics. Enschede : University of Twente, 2019. 263 p.
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abstract = "Thin polymer films applied in organic solvent applications, such as coatings or thin selective membrane layers often show a decline in their performance over a period of time, making them unsuitable for long-term applications. The reason for this decline in performance can often be attributed to the swelling and instability of thin polymer films in organic solvents. At this moment there is still a poor understanding of the mechanisms behind the swelling and instability of high-performance polymers when in contact with an organic solvent and how these mechanisms change over time. As a result, predictions on the performance of thin polymer films in organic solvent applications are limited, preventing significant improvements in the membrane performance. The work described in this thesis provides a contribution to the understanding of the swelling dynamics of thin polymer films exposed to an organic solvent. This thesis discusses fundamental aspects, such as the accuracy of spectroscopic ellipsometry with respect to in situ thin polymer film swelling. Also, the swelling mechanisms and dynamics in glassy polymers are discussed using spectroscopic ellipsometry and broadband dielectric spectroscopy as measurement tools. More towards membrane applications, this thesis describes the swelling of a new potential barrier material, poly(PDMS-POSSimde) and reveals an underlying cause of membrane failure of polysulfone-based desalination membranes in water-toluene mixtures.",
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Tempelman, K 2019, 'Swelling of thin polymer films: understanding the mechanisms and dynamics', Doctor of Philosophy, University of Twente, Enschede. https://doi.org/10.3990/1.9789036547093

Swelling of thin polymer films : understanding the mechanisms and dynamics. / Tempelman, Kristianne .

Enschede : University of Twente, 2019. 263 p.

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

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N2 - Thin polymer films applied in organic solvent applications, such as coatings or thin selective membrane layers often show a decline in their performance over a period of time, making them unsuitable for long-term applications. The reason for this decline in performance can often be attributed to the swelling and instability of thin polymer films in organic solvents. At this moment there is still a poor understanding of the mechanisms behind the swelling and instability of high-performance polymers when in contact with an organic solvent and how these mechanisms change over time. As a result, predictions on the performance of thin polymer films in organic solvent applications are limited, preventing significant improvements in the membrane performance. The work described in this thesis provides a contribution to the understanding of the swelling dynamics of thin polymer films exposed to an organic solvent. This thesis discusses fundamental aspects, such as the accuracy of spectroscopic ellipsometry with respect to in situ thin polymer film swelling. Also, the swelling mechanisms and dynamics in glassy polymers are discussed using spectroscopic ellipsometry and broadband dielectric spectroscopy as measurement tools. More towards membrane applications, this thesis describes the swelling of a new potential barrier material, poly(PDMS-POSSimde) and reveals an underlying cause of membrane failure of polysulfone-based desalination membranes in water-toluene mixtures.

AB - Thin polymer films applied in organic solvent applications, such as coatings or thin selective membrane layers often show a decline in their performance over a period of time, making them unsuitable for long-term applications. The reason for this decline in performance can often be attributed to the swelling and instability of thin polymer films in organic solvents. At this moment there is still a poor understanding of the mechanisms behind the swelling and instability of high-performance polymers when in contact with an organic solvent and how these mechanisms change over time. As a result, predictions on the performance of thin polymer films in organic solvent applications are limited, preventing significant improvements in the membrane performance. The work described in this thesis provides a contribution to the understanding of the swelling dynamics of thin polymer films exposed to an organic solvent. This thesis discusses fundamental aspects, such as the accuracy of spectroscopic ellipsometry with respect to in situ thin polymer film swelling. Also, the swelling mechanisms and dynamics in glassy polymers are discussed using spectroscopic ellipsometry and broadband dielectric spectroscopy as measurement tools. More towards membrane applications, this thesis describes the swelling of a new potential barrier material, poly(PDMS-POSSimde) and reveals an underlying cause of membrane failure of polysulfone-based desalination membranes in water-toluene mixtures.

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