Issue 11, 2012

Supramolecular three-armed star polymersviacyclodextrin host–guest self-assembly

Abstract

Three-armed star polymers with a cyclodextrin core and polyacrylamide arms were prepared via inclusion complex formation. A novel adamantyl-functionalized chain transfer agent was utilized in the reversible addition–fragmentation chain transfer (RAFT) polymerization of N,N-dimethylacrylamide and N,N-diethylacrylamide to afford guest-functionalized polymers. In combination with a three-pronged β-cyclodextrin core, supramolecular self-assembly was exploited for the formation of star-shaped architectures. This was demonstrated via a combination of dynamic light scattering (DLS) and 2D rotating frame nuclear Overhauser effect spectroscopy (ROESY) in D2O. Furthermore, turbidity measurements in the case of PDEAAm showed a rise in the LCST of the system. The complex formation was shown to be reversible, as DLS at elevated temperatures (70 °C) indicated a complete disassembly of the star polymers.

Graphical abstract: Supramolecular three-armed star polymers via cyclodextrin host–guest self-assembly

Supplementary files

Article information

Article type
Paper
Submitted
02 May 2012
Accepted
25 May 2012
First published
25 May 2012

Polym. Chem., 2012,3, 3139-3145

Supramolecular three-armed star polymers via cyclodextrin host–guest self-assembly

B. V. K. J. Schmidt, T. Rudolph, M. Hetzer, H. Ritter, F. H. Schacher and C. Barner-Kowollik, Polym. Chem., 2012, 3, 3139 DOI: 10.1039/C2PY20293J

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