Bottle-Brush Brushes: Cylindrical Molecular Brushes of Poly(2-oxazoline) on Glassy Carbon

Handle URI:
http://hdl.handle.net/10754/597692
Title:
Bottle-Brush Brushes: Cylindrical Molecular Brushes of Poly(2-oxazoline) on Glassy Carbon
Authors:
Zhang, Ning; Steenackers, Marin; Luxenhofer, Robert; Jordan, Rainer
Abstract:
We report on the synthesis of brushes of bottle-brushes of poly(2-oxazoline)s on polished glassy carbon (GC) substrates. First, homogeneous and stable poly(2-isopropenyl-2-oxazoline) (PIPOx) brush layers with thicknesses up to 160 nm were created directly onto GC by the self-initiated photografting and photopolymerization (SIPGP) of 2-isopropenyl-2-oxazoline (IPOx). Kinetic studies reveal a linear increase in thickness with the polymerization time. In a second reaction, the pendant 2-oxazoline ring of the PIPOx brushes were used for the living cationic ring-opening polymerization (LCROP) with different substituted 2-oxazoline monomers to form the side chains. Also for the second surface-initiatedLCROPfrom the surface-bound macroinitiator brushes, the thickness increase with the polymerization time was found to be linear and reproducible. Characterization of the resulting bottle-brush brushes by FTIR spectroscopy,contact angle, and AFM indicates a high side chain grafting density and quantitative reactions. Finally, we have demonstrated the possibility of functionalizing the bottle-brush brushes side chain end groups with sterically demanding molecules. © 2009 American Chemical Society.
Citation:
Zhang N, Steenackers M, Luxenhofer R, Jordan R (2009) Bottle-Brush Brushes: Cylindrical Molecular Brushes of Poly(2-oxazoline) on Glassy Carbon. Macromolecules 42: 5345–5351. Available: http://dx.doi.org/10.1021/ma900329y.
Publisher:
American Chemical Society (ACS)
Journal:
Macromolecules
Issue Date:
28-Jul-2009
DOI:
10.1021/ma900329y
Type:
Article
ISSN:
0024-9297; 1520-5835
Sponsors:
This work was supported by the Elitenetzwerk Bayern in the frame of the international graduate school CompInt (“Materials Science of Complex Interfaces”) as part of the IGSSE (‘International Graduate School for Science and Engineering’) at the Technische Universität München. M.S. is additionally thankful for a postdoc stipend from Wacker-Institute of Silicon Chemistry of the TU München and R.L. for a postdoc stipend from the King Abdullah University of Science and Technology, Saudi Arabia (KAUST).
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Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Ningen
dc.contributor.authorSteenackers, Marinen
dc.contributor.authorLuxenhofer, Roberten
dc.contributor.authorJordan, Raineren
dc.date.accessioned2016-02-25T12:44:31Zen
dc.date.available2016-02-25T12:44:31Zen
dc.date.issued2009-07-28en
dc.identifier.citationZhang N, Steenackers M, Luxenhofer R, Jordan R (2009) Bottle-Brush Brushes: Cylindrical Molecular Brushes of Poly(2-oxazoline) on Glassy Carbon. Macromolecules 42: 5345–5351. Available: http://dx.doi.org/10.1021/ma900329y.en
dc.identifier.issn0024-9297en
dc.identifier.issn1520-5835en
dc.identifier.doi10.1021/ma900329yen
dc.identifier.urihttp://hdl.handle.net/10754/597692en
dc.description.abstractWe report on the synthesis of brushes of bottle-brushes of poly(2-oxazoline)s on polished glassy carbon (GC) substrates. First, homogeneous and stable poly(2-isopropenyl-2-oxazoline) (PIPOx) brush layers with thicknesses up to 160 nm were created directly onto GC by the self-initiated photografting and photopolymerization (SIPGP) of 2-isopropenyl-2-oxazoline (IPOx). Kinetic studies reveal a linear increase in thickness with the polymerization time. In a second reaction, the pendant 2-oxazoline ring of the PIPOx brushes were used for the living cationic ring-opening polymerization (LCROP) with different substituted 2-oxazoline monomers to form the side chains. Also for the second surface-initiatedLCROPfrom the surface-bound macroinitiator brushes, the thickness increase with the polymerization time was found to be linear and reproducible. Characterization of the resulting bottle-brush brushes by FTIR spectroscopy,contact angle, and AFM indicates a high side chain grafting density and quantitative reactions. Finally, we have demonstrated the possibility of functionalizing the bottle-brush brushes side chain end groups with sterically demanding molecules. © 2009 American Chemical Society.en
dc.description.sponsorshipThis work was supported by the Elitenetzwerk Bayern in the frame of the international graduate school CompInt (“Materials Science of Complex Interfaces”) as part of the IGSSE (‘International Graduate School for Science and Engineering’) at the Technische Universität München. M.S. is additionally thankful for a postdoc stipend from Wacker-Institute of Silicon Chemistry of the TU München and R.L. for a postdoc stipend from the King Abdullah University of Science and Technology, Saudi Arabia (KAUST).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleBottle-Brush Brushes: Cylindrical Molecular Brushes of Poly(2-oxazoline) on Glassy Carbonen
dc.typeArticleen
dc.identifier.journalMacromoleculesen
dc.contributor.institutionTechnische Universitat Munchen, Munich, Germanyen
dc.contributor.institutionTechnische Universitat Dresden, Dresden, Germanyen
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