Scanning Thermal Lithography for Nanopatterning of Polymers. Transient Heat Transport and Thermal Chemical Functionalization Across the Length Scales

Research output: ThesisPhD Thesis - Research UT, graduation UT

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Abstract

The research described in this Thesis comprises the development of Scanning Thermal Lithography (SThL) as an alternative approach for the spatially controlled, highly localized thermal chemical surface modification of polymer films for the development of e.g. (bio)sensors. In the Thesis, the range of thermal transport from heated AFM probes in contact with polymer surfaces is assessed. Proximity effects of thermally conductive substrates for supported thin polymer films on the calibrated probe tip-sample interface temperature for heated AFM probes are elaborated. Having established the basic needs for the development of SThL in terms of heatable AFM probes, the well established polystyrene-block-poly(tert-butyl acrylate) (PS-b-PtBA) polymer film platform was explored for utilization in thermochemical surface activation reactions, starting with Reactive Imprint Lithography (RIL) at the macroscopic length scale. RIL comprises the topographical patterning and the simultaneous thermal deprotection of the tert-butyl ester protected carboxylic acid groups in the PtBA block. The successful thermal chemical functionalization followed by the wet chemical surface derivatization with e.g. poly(ethylene glycol), was followed by the introduction of SThL on the PS-b-PtBA film platforms to enable thermal chemical surface functionalization at the sub-micrometer length scale. Disadvantage of the block copolymer film platform were the observed thermomechanical surface deformations, exceeding 400 nm in diameter, after SThL. Therefore crosslinked tert-butyl (meth)acrylate polymer films were prepared and their thermal decomposition mechanism was analyzed in detail followed by their utilization in SThL. Overall SThL is shown to be a promising nanotechnology tool for the thermal chemical surface modification with sub 50 nm spatial resolution.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Vancso, Gyula J., Supervisor
  • Schönherr, Holger, Supervisor
Award date11 Feb 2011
Place of PublicationEnschede
Publisher
Print ISBNs978 90 365 3131 3
DOIs
Publication statusPublished - 11 Feb 2011

Fingerprint

Lithography
Polymers
Scanning
Polymer films
Surface treatment
Hot Temperature
Carboxylic Acids
Nanotechnology
Polyethylene glycols
Block copolymers
Esters
Pyrolysis
Chemical activation
Thin films

Keywords

  • IR-75945
  • METIS-278550

Cite this

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title = "Scanning Thermal Lithography for Nanopatterning of Polymers. Transient Heat Transport and Thermal Chemical Functionalization Across the Length Scales",
abstract = "The research described in this Thesis comprises the development of Scanning Thermal Lithography (SThL) as an alternative approach for the spatially controlled, highly localized thermal chemical surface modification of polymer films for the development of e.g. (bio)sensors. In the Thesis, the range of thermal transport from heated AFM probes in contact with polymer surfaces is assessed. Proximity effects of thermally conductive substrates for supported thin polymer films on the calibrated probe tip-sample interface temperature for heated AFM probes are elaborated. Having established the basic needs for the development of SThL in terms of heatable AFM probes, the well established polystyrene-block-poly(tert-butyl acrylate) (PS-b-PtBA) polymer film platform was explored for utilization in thermochemical surface activation reactions, starting with Reactive Imprint Lithography (RIL) at the macroscopic length scale. RIL comprises the topographical patterning and the simultaneous thermal deprotection of the tert-butyl ester protected carboxylic acid groups in the PtBA block. The successful thermal chemical functionalization followed by the wet chemical surface derivatization with e.g. poly(ethylene glycol), was followed by the introduction of SThL on the PS-b-PtBA film platforms to enable thermal chemical surface functionalization at the sub-micrometer length scale. Disadvantage of the block copolymer film platform were the observed thermomechanical surface deformations, exceeding 400 nm in diameter, after SThL. Therefore crosslinked tert-butyl (meth)acrylate polymer films were prepared and their thermal decomposition mechanism was analyzed in detail followed by their utilization in SThL. Overall SThL is shown to be a promising nanotechnology tool for the thermal chemical surface modification with sub 50 nm spatial resolution.",
keywords = "IR-75945, METIS-278550",
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language = "English",
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Scanning Thermal Lithography for Nanopatterning of Polymers. Transient Heat Transport and Thermal Chemical Functionalization Across the Length Scales. / Duvigneau, Joost.

Enschede : University of Twente, 2011. 183 p.

Research output: ThesisPhD Thesis - Research UT, graduation UT

TY - THES

T1 - Scanning Thermal Lithography for Nanopatterning of Polymers. Transient Heat Transport and Thermal Chemical Functionalization Across the Length Scales

AU - Duvigneau, Joost

PY - 2011/2/11

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N2 - The research described in this Thesis comprises the development of Scanning Thermal Lithography (SThL) as an alternative approach for the spatially controlled, highly localized thermal chemical surface modification of polymer films for the development of e.g. (bio)sensors. In the Thesis, the range of thermal transport from heated AFM probes in contact with polymer surfaces is assessed. Proximity effects of thermally conductive substrates for supported thin polymer films on the calibrated probe tip-sample interface temperature for heated AFM probes are elaborated. Having established the basic needs for the development of SThL in terms of heatable AFM probes, the well established polystyrene-block-poly(tert-butyl acrylate) (PS-b-PtBA) polymer film platform was explored for utilization in thermochemical surface activation reactions, starting with Reactive Imprint Lithography (RIL) at the macroscopic length scale. RIL comprises the topographical patterning and the simultaneous thermal deprotection of the tert-butyl ester protected carboxylic acid groups in the PtBA block. The successful thermal chemical functionalization followed by the wet chemical surface derivatization with e.g. poly(ethylene glycol), was followed by the introduction of SThL on the PS-b-PtBA film platforms to enable thermal chemical surface functionalization at the sub-micrometer length scale. Disadvantage of the block copolymer film platform were the observed thermomechanical surface deformations, exceeding 400 nm in diameter, after SThL. Therefore crosslinked tert-butyl (meth)acrylate polymer films were prepared and their thermal decomposition mechanism was analyzed in detail followed by their utilization in SThL. Overall SThL is shown to be a promising nanotechnology tool for the thermal chemical surface modification with sub 50 nm spatial resolution.

AB - The research described in this Thesis comprises the development of Scanning Thermal Lithography (SThL) as an alternative approach for the spatially controlled, highly localized thermal chemical surface modification of polymer films for the development of e.g. (bio)sensors. In the Thesis, the range of thermal transport from heated AFM probes in contact with polymer surfaces is assessed. Proximity effects of thermally conductive substrates for supported thin polymer films on the calibrated probe tip-sample interface temperature for heated AFM probes are elaborated. Having established the basic needs for the development of SThL in terms of heatable AFM probes, the well established polystyrene-block-poly(tert-butyl acrylate) (PS-b-PtBA) polymer film platform was explored for utilization in thermochemical surface activation reactions, starting with Reactive Imprint Lithography (RIL) at the macroscopic length scale. RIL comprises the topographical patterning and the simultaneous thermal deprotection of the tert-butyl ester protected carboxylic acid groups in the PtBA block. The successful thermal chemical functionalization followed by the wet chemical surface derivatization with e.g. poly(ethylene glycol), was followed by the introduction of SThL on the PS-b-PtBA film platforms to enable thermal chemical surface functionalization at the sub-micrometer length scale. Disadvantage of the block copolymer film platform were the observed thermomechanical surface deformations, exceeding 400 nm in diameter, after SThL. Therefore crosslinked tert-butyl (meth)acrylate polymer films were prepared and their thermal decomposition mechanism was analyzed in detail followed by their utilization in SThL. Overall SThL is shown to be a promising nanotechnology tool for the thermal chemical surface modification with sub 50 nm spatial resolution.

KW - IR-75945

KW - METIS-278550

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M3 - PhD Thesis - Research UT, graduation UT

SN - 978 90 365 3131 3

PB - University of Twente

CY - Enschede

ER -