Issue 31, 2015

Amphiphilic polyether-based block copolymers as crosslinkable ligands for Au-nanoparticles

Abstract

We report on the synthesis of thiol-terminated, polyether-based amphiphilic block copolymers with a hydrophilic poly(ethylene oxide) (PEO) segment and a second crosslinkable block of either poly(furfuryl glycidyl ether) (PFGE) or poly(allyl glycidyl ether) (PAGE). Both block copolymers could be synthesized with narrow dispersities (Đ ≤ 1.07) via living anionic ring-opening polymerization (AROP). Introduction of the thiol-moiety enables the application of these block copolymers as ligands for the preparation of Au-nanoparticles (Au-NPs) by direct reduction of suitable precursors in N,N-dimethylacetamide (DMAc). The ligands of the obtained hybrid nanoparticles featuring an Au core and a block copolymer shell were crosslinked either via Diels–Alder reactions for the PFGE segment or via hydrosilylation chemistry targeting the PAGE segment. In this way, shell-crosslinked Au-NPs with enhanced stability against ligand exchange reactions in the presence of competitive ligands like alkyl thiols could be prepared.

Graphical abstract: Amphiphilic polyether-based block copolymers as crosslinkable ligands for Au-nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
22 Oct 2014
Accepted
03 Dec 2014
First published
04 Dec 2014

Polym. Chem., 2015,6, 5633-5642

Amphiphilic polyether-based block copolymers as crosslinkable ligands for Au-nanoparticles

C. Hörenz, T. Rudolph, M. J. Barthel, U. Günther and F. H. Schacher, Polym. Chem., 2015, 6, 5633 DOI: 10.1039/C4PY01434K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements