Macromolecular Rapid Communications
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editors: Kirsten Severing , Stefan Spiegel
Online ISSN: 1521-3927
Materials Science Weekly Newsletter
Recently Published Articles
- Direct Access to Dithiobenzoate RAFT Agent Fragmentation Rate Coefficients by ESR Spin-Trapping
Kayte Ranieri, Guillaume Delaittre, Christopher Barner-Kowollik and Thomas Junkers
Article first published online: 30 OCT 2014 | DOI: 10.1002/marc.201400518
The activation energy of the dithiobenzoates RAFT (reversible addition–fragmentation chain transfer) intermediate fragmentation rate coefficient is determined via ESR (electron spin resonance) spin trapping experiments, which unambiguously demonstrate that these intermediate radicals are associated with a comparatively high stability as predicted by theoretical calculations.
- Core–Shell–Shell and Hollow Double-Shell Microgels with Advanced Temperature Responsiveness
Janine Dubbert, Katja Nothdurft, Matthias Karg and Walter Richtering
Article first published online: 29 OCT 2014 | DOI: 10.1002/marc.201400495
The synthesis of doubly thermoresponsive hollow microgels with two concentric shells is reported. Unique swelling properties are observed for the particles at different temperatures: at temperatures below 32 °C, both shells are swollen, at temperatures between 32 °C and 42 °C only the inner shell, and above 42 °C both polymer shells are collapsed.
- Synthesis of Poly(poly(ethylene glycol) methacrylate)–Polyisobutylene ABA Block Copolymers by the Combination of Quasiliving Carbocationic and Atom Transfer Radical Polymerizations
Ákos Szabó, Györgyi Szarka and Béla Iván
Article first published online: 29 OCT 2014 | DOI: 10.1002/marc.201400469
By combining quasiliving carbocationic and atom transfer radical polymerization (ATRP), novel PPEGMA-PIB-PPEGMA ABA-type block copolymers with the comb-shaped poly(poly(ethylene glycol) methacrylate) (PPEGMA) outer blocks are synthesized via ATRP of poly(ethylene glycol) methacrylate (PEGMA) macromonomers with various chain length initiated by 2-bromoisobutyrate-telechelic linear polyisobutylene (PIB) as macroinitiator.
- Glycopolymer Brushes for Specific Lectin Binding by Controlled Multivalent Presentation of N-Acetyllactosamine Glycan Oligomers
Hyunji Park, Ruben R. Rosencrantz, Lothar Elling and Alexander Böker
Article first published online: 29 OCT 2014 | DOI: 10.1002/marc.201400453
Functional polymer brushes prepared from a specifically designed glycomonomer via surface-initiated atom transfer radical polymerization show a unique selectivity and specificity for lectin binding. The pendant monosaccharides of the glycopolymer brushes can be extended to oligosaccharides using recombinant glycosyltransferases, resulting in multivalently presented glycan structures suitable for highly selective and specific lectin capturing and analysis.
- Mediating Gel Formation from Structurally Controlled Poly(Electrolytes) Through Multiple “Head-to-Body” Electrostatic Interactions
Hassan Srour, Olivier Ratel, Mathieu Leocmach, Emma A. Adams, Sandrine Denis-Quanquin, Vinukrishnan Appukuttan, Nicolas Taberlet, Sébastien Manneville, Jean-Charles Majesté, Christian Carrot, Chantal Andraud and Cyrille Monnereau
Article first published online: 29 OCT 2014 | DOI: 10.1002/marc.201400478
Introduction of an anionic end chain functionality onto a cationic homopolymer is sufficient to induce efficient gel formation in water.