Efficient and mild modification of Si surfaces via orthogonal hetero Diels-Alder chemistry

Nebhani, L., Gerstel, P., Atanasova, P., Bruns, M., & Barner-Kowollik, C. (2009) Efficient and mild modification of Si surfaces via orthogonal hetero Diels-Alder chemistry. Journal of Polymer Science, Part A: Polymer Chemistry, 47(24).

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Abstract

An efficient and mild modification of Si surfaces through orthogonal hetero Diels-Alder (HDA) chemistry, was investigated. The modification of Si wafers was achieved by the silanization of pretreated Si surfaces using 3-(N-strylmethyl-2-aminoethylamino)-propyl trimethoxy silane (SM-TMS). The RAFT-HDA reaction between the PSDTF functionalized PiBA and the styryl functionalized Si surface proceeds in the absence of catalysts at 60°C. The coupling reaction between Si surfaces modified with a styrene linker and PiBA-PSDTF was performed at 60° C in chloroform solution within 12 h. The conjugation leads to the formation of a 3,6-dihydro-2H-thiopyran ring, the stability of which has been investigated and found to be withstanding relatively harsh conditions of pH and heat. The surface modification was also confirmed by measuring the thickness through ellipsometry of the Si wafers after hydrolsis.

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ID Code: 99224
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :30
Export Date: 5 September 2016
CODEN: JPACE
Correspondence Address: Barner-Kowollik, C.; Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany; email: christopher.barner-kowollik@kit.edu
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Keywords: Conjugation, Diels-Alder reaction, Living polymerization, Surfaces, Chloroform solutions, Coupling reaction, Functionalized, Hetero-diels, Rapid communication, Si surfaces, Si wafer, Silanizations, Surface modification, Chemical bonds, Directive antennas, Semiconducting silicon compounds, Silanes, Silicon, Silicon wafers, Styrene, Thickness measurement, Surface reactions
DOI: 10.1002/pola.23756
ISSN: 0887624X
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 07 Oct 2016 04:37

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