Macromolecular Rapid Communications
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editors: Kirsten Severing , Stefan Spiegel
Online ISSN: 1521-3927
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Recently Published Articles
- Spatial Control over Brush Growth through Sunlight-Induced Atom Transfer Radical Polymerization Using Dye-Sensitized TiO2 as a Photocatalyst
Bin Li, Bo Yu and Feng Zhou
Article first published online: 17 APR 2014 | DOI: 10.1002/marc.201400121
Surface-initiated atom transfer radical polymerization is induced by in situ photo-generation of the CuI/L activator complex from the higher oxidation state of CuII/L deactivator complex using dye sensitized titanium dioxide nanoparticles. The powerful consequence of this photo method is the ability to spatially and temporally control brush growth in one single step. Patterns with sub-50 nm resolution are obtained.
- Morphing Hydrogel Patterns by Thermo-Reversible Fluorescence Switching
Erhan Bat, En-Wei Lin, Sina Saxer and Heather D. Maynard
Article first published online: 17 APR 2014 | DOI: 10.1002/marc.201400160
Stimuli-responsive surfaces that show reversible fluorescence switching behavior in response to temperature changes are presented. Fluorophore-conjugated hydrogel thin films are bright when the gels are swollen; upon collapsing of the gels, self-quenching of fluorophores leads to significant attenuation of fluorescence. Morphing surfaces are obtained by patterning multiple stimuli-responsive polymers using electron beam lithography.
- Conjugated Polymer Patterning through Photooxidative Backbone Cleavage
Ross S. Johnson, Jacob J. Haworth, Patrick S. Finnegan, David R. Wheeler and Shawn M. Dirk
Article first published online: 17 APR 2014 | DOI: 10.1002/marc.201400133
A xanthate precursor to poly(3,4-diphenyl-2,5-thienylene vinylene) is shown to photopattern as a positive tone resist. Photooxidative cleavage of the polymer backbone increases the solubility of the light-exposed areas, allowing for pattern formation. Single micrometer resolution of an insoluble active material is achieved without compromise to the polymer's properties.
- Contents: Macromol. Rapid Commun. 8/2014 (pages 763–766)
Article first published online: 16 APR 2014 | DOI: 10.1002/marc.201470027
- Macromol. Rapid Commun. 8/2014 (page 848)
Peter J. Roth, Thomas P. Davis and Andrew B. Lowe
Article first published online: 16 APR 2014 | DOI: 10.1002/marc.201470028
Back Cover: Well-defined poly[pentafluorophenyl (meth) acrylate] homopolymers are prepared by RAFT radical polymerization mediated by a novel chain transfer agent containing two cholesteryl groups in the R-group fragment. Subsequent reaction with a series of small-molecule amines in the presence of an appropriate Michael acceptor for ω-group end-capping yields a library of novel bischolesteryl functional hydrophilic homopolymers. Two examples of statistical copolymers are also prepared including a biologically relevant sugar derivative. Specific examples of these homopolymers are examined with respect to their ability to self assemble in aqueous media—a process driven entirely by the cholesteryl end groups. In all instances evaluated, and under the preparation conditions examined the homopolymers aggregate clearly forming polymersomes spanning an impressive size range Further details can be found in the article by P. J. Roth, T. P. Davis, and A. B. Lowe* on page 813.