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Functionalization of Gold and Silicon Surfaces by Copolymer Brushes Using Surface-Initiated ATRP

Rakhmatullina, Ekaterina and Braun, Thomas and Kaufmann, Thomas and Spillmann, Hannes and Malinova, Violeta and Meier, Wolfgang. (2007) Functionalization of Gold and Silicon Surfaces by Copolymer Brushes Using Surface-Initiated ATRP. Macromolecular Chemistry and Physics, 208 (12). pp. 1283-1293.

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Official URL: https://edoc.unibas.ch/72419/

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Abstract

Abstract Surface-initiated ATRP was used for step-by-step growth of poly(butyl methacrylate)-co-poly(2,2-dimethylaminoethyl methacrylate) (PBMA-co-PDMAEMA) brushes from gold and silicon substrates. A one-step procedure was found to have high efficiency for initiator anchoring. The polymer brushes were characterized in situ by contact angle measurements, ellipsometry, and X-ray photoelectron spectroscopy (XPS). Detachment of the polymer brushes from both substrates allowed an exact determination of molecular weight and polydispersity indexes given by GPC. 1H NMR confirmed the chemical structure of the detached brushes. Comparison of theoretical predictions and experimental data showed that the first PBMA block had a folded conformation while copolymerization of the second DMAEMA induced stretching of the brushes.
Faculties and Departments:05 Faculty of Science > Departement Chemie
05 Faculty of Science > Departement Chemie > Chemie > Makromolekulare Chemie (Meier)
UniBasel Contributors:Meier, Wolfgang P.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Wiley
ISSN:1022-1352
e-ISSN:1521-3935
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:11 Mar 2020 15:36
Deposited On:11 Mar 2020 15:36

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