Issue 21, 2011
From the journal:

Chemical Communications

“On-demand” control of thermoresponsive properties of poly(N-isopropylacrylamide) with cucurbit[8]uril host–guest complexes†‡

Urs Rauwald,a   Jesús del Barrio,a   Xian Jun Loha  and  Oren A. Scherman*a  

* Corresponding authors

a Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, United Kingdom
E-mail: oas23@cam.ac.uk
Fax: +44 1223 334866
Tel: +44 1223 331508

Abstract

The chain end complexation of a functional PNIPAM by a cucurbit[8]uril-viologen complex causes a shift in its lower critical solution temperature (LCST) by over 5 °C. An instantaneous phase change of the thermally responsive polymer beyond its LCST can be induced by addition of the aqueous cucurbituril host–guest complex. Subsequent decomplexation upon addition of a competitive guest releases the PNIPAM terminus and triggers complete reversibility.

Graphical abstract: “On-demand” control of thermoresponsive properties of poly(N-isopropylacrylamide) with cucurbit[8]uril host–guest complexes

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Article information

DOI
https://doi.org/10.1039/C1CC11214G
Article type
Communication
Submitted
01 Mar 2011
Accepted
28 Mar 2011
First published
12 Apr 2011

Chem. Commun., 2011,47, 6000-6002

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“On-demand” control of thermoresponsive properties of poly(N-isopropylacrylamide) with cucurbit[8]uril host–guest complexes

U. Rauwald, J. D. Barrio, X. J. Loh and O. A. Scherman, Chem. Commun., 2011, 47, 6000 DOI: 10.1039/C1CC11214G

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