Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 31, Issue 9-10
Issue edited by: S. Hornig, I. Manners, G. R. Newkome, U. S. Schubert
Qiang Zhao, Shu-Juan Liu and Wei Huang
Article first published online: 17 MAY 2010 | DOI: 10.1002/marc.201090022
Front Cover: The picture presents the beautiful night scenes of the Nanjing (P. R. China) due to all kinds of light sources. Polymers containing phosphorescent iridium(III) complexes, as a class of excellent light-emitting materials, are promising for applications in solid-state lighting. In addition, such materials have also been applied successfully in light-emitting devices for displays. Further details can be found in the article by Qiang Zhao, Shu-Juan Liu, and Wei Huang*on page 794.
Article first published online: 17 MAY 2010 | DOI: 10.1002/marc.201090023
Stephanie Hornig, Ian Manners, George R. Newkome and Ulrich S. Schubert
Article first published online: 21 APR 2010 | DOI: 10.1002/marc.201000196
Mark A. Hempenius, Concetta Cirmi, Fabio Lo Savio, Jing Song and G. Julius Vancso
Article first published online: 16 APR 2010 | DOI: 10.1002/marc.200900908
Poly(ferrocenylsilane) (PFS)-based organometallic gels and hydrogels form a novel class of redox-responsive materials. These networks are swellable in organic solvents or in water, depending on the substituents attached to PFS. Chain properties such as charge density and interaction with surrounding solvent may be reversibly controlled by redox in a continuous manner, enabling applications such as photonic crystal full color displays or actuators.
Raja Shunmugam, Gregory J. Gabriel, Khaled A. Aamer and Gregory N. Tew
Article first published online: 4 MAY 2010 | DOI: 10.1002/marc.200900869
Terpyridine-complex containing homopolymers (left) and block copolymers (right) behaved as rigid-rod-like molecules due to the increase in persistence length generated by the metal complex. This leads to interesting self-assembling including hierarchical length scales in the block copolymer.
Article first published online: 12 MAR 2010 | DOI: 10.1002/marc.200900888
As one of the most promising optoelectronic materials, polymers that contain phosphorescent IrIII complexes have attracted more and more interest in recent years. They have been applied successfully in polymer light-emitting diodes. In this article, the design principles, synthetic routes, structure–property relationships, and applications in optoelectronic devices of polymers that contain phosphorescent IrIII complexes are summarized.
Pierre D. Harvey and Michael Knorr
Article first published online: 11 MAY 2010 | DOI: 10.1002/marc.200900893
This paper focuses on the syntheses, structures, and luminescence properties of 1D, 2D, and 3D coordination polymers built upon the tetranuclear Cu4X4 clusters and mono- and dithioether assembling ligands. A review of the relevant literature is presented along with our own results stressing on the salient features of the interactions between the CuI salt as the starting material and the thioethers.
Christoph Ulbricht, Caglar Remzi Becer, Andreas Winter and Ulrich S. Schubert
Article first published online: 24 MAR 2010 | DOI: 10.1002/marc.200900787
Well-defined copolymers containing phosphorescent iridium(III) emitters can be obtained by reversible addition fragmentation chain-transfer polymerization, followed by coordination of a reactive iridium(III) precursor complex to the ligand sites on the polymer chain under very mild conditions.
Ping Lu, Jacky W. Y. Lam, Jianzhao Liu, Cathy K. W. Jim, Wangzhang Yuan, Ni Xie, Yongchun Zhong, Qin Hu, Kam Sing Wong, Kevin K. L. Cheuk and Ben Zhong Tang
Article first published online: 6 APR 2010 | DOI: 10.1002/marc.200900794
A hyperbranched poly(silylenevinylene) with high solubility and stability is synthesized by alkyne polyhydrosilylation. The polymer shows an aggregation-induced emission effect and works as an excellent chemosensor for explosive detection.
Richard Hoogenboom, Brian C. Moore and Ulrich S. Schubert
Article first published online: 4 MAR 2010 | DOI: 10.1002/marc.200900834
Supramolecular star-shaped polymers are an interesting class of materials that combine the properties of star-shaped polymers and supramolecular interactions. Here, we report a supramolecular star-shaped poly(ethylene glycol) based on a [2 × 2] copper(I) grid of 3,6-di(2-pyridyl)-pyridazine (DPP) as structural motif to form the core of supramolecular star-shaped polymers.
Christopher J. Jeffery, Marie P. Cifuentes, Gulliver T. Dalton, T. Christopher Corkery, Michael D. Randles, Anthony C. Willis, Marek Samoc and Mark G. Humphrey
Article first published online: 12 MAR 2010 | DOI: 10.1002/marc.200900859
The 1st generation stilbenylethynylruthenium dendrimer shown here is prepared by a synthetic route that exploits Emmons–Horner–Wadsworth coupling of metal ethynyl-functionalized benzaldehyde. Its molecular weight-scaled refractive nonlinearity is significantly larger than that of its zero-generation analog, an NLO dendritic effect. In contrast to its all-ethynyl-linked analog, it is a nonlinear absorber at telecommunications wavelengths.
Jin-Liang Wang, Yi-Tsu Chan, Charles N. Moorefield, Jian Pei, David A. Modarelli, Natalie C. Romano and George R. Newkome
Article first published online: 19 MAR 2010 | DOI: 10.1002/marc.200900874
A new series of shape-persistent metallomacromolecules G0 and G1, based on thiophene-functionalized bisterpyridine-Ru(II) with truxene moieties are synthesized. These branched structures result in higher molar absorption coefficient and broader absorption making these macromolecules stable potential candidates for dye-sensitized solar cells.
Ronan McHale, Negar Ghasdian, Yibo Liu, Huihui Wang, Yuqing Miao and Xiaosong Wang
Article first published online: 6 APR 2010 | DOI: 10.1002/marc.200900875
Miniemulsion periphery polymerization (MEPP) has been used for the synthesis of Prussian blue (PB) nanocubes The combination of pentacyano ferrate functionalized surfactant (EPE-Fe; 60% by weight) and additional surfactants without ferrate end group (40% by weight) is required for the formation of cubic morphology. Particles with irregular shape have been observed by reacting EPE-Fe and Fe3+ directly in water.
Xing-Zhu Wang, Qiwei Wang, Lei Yan, Wai-Yeung Wong, Kai-Yin Cheung, Annie Ng, Aleksandra B. Djurišić and Wai-Kin Chan
Article first published online: 1 MAR 2010 | DOI: 10.1002/marc.200900885
Very-low-bandgap platinum metallopolyynes of cyclopentadithiophenone derivatives and their molecular model complexes are reported. Polymers P1 and P2 have respective optical bandgaps of 1.53 (blue) and 1.44 eV (green), which are much lowered relative to that for P0 (2.55 eV, yellow). The incorporation of an electron-accepting keto bridge on the oligothiophene ring in the main chain furnishes a new π-conjugated donor–acceptor system with near-infrared absorption appropriate for photovoltaic cells.
Andreas Wild, Florian Schlütter, Georges M. Pavlov, Christian Friebe, Grit Festag, Andreas Winter, Martin D. Hager, Vera Cimrová and Ulrich S. Schubert
Article first published online: 16 APR 2010 | DOI: 10.1002/marc.200900889
The reaction of donor and/or acceptor containing π-conjugated bisterpyridines with zinc(II) and ruthenium(II) ions results in a series of metallo homo and copolymers. The characterization using SEC, analytical AUC, and viscosimetry prove the ruthenium(II) metallo-polymers to be high molar mass materials (Mfs = 20 000 g · mol−1, = 38 000 g · mol−1 Ru1-2; Mfs = 34 000 g · mol−1, = 88 000 g · mol−1 Ru1) exhibiting intrinsic viscosities of up to [η] = 192 cm3 · g−1.
Chris S. K. Mak, Wai Kei Cheung, Qing Yun Leung and Wai Kin Chan
Article first published online: 6 APR 2010 | DOI: 10.1002/marc.200900890
Conjugated polymers containing low bandgap rhenium(I) complexes on the main chain with the optical absorption extended to the near-infrared region are reported. Their photophysical, electrochemical, and photovoltaic properties were also investigated.
Ronald Siebert, Andreas Winter, Benjamin Dietzek, Ulrich S. Schubert and Jürgen Popp
Article first published online: 19 MAR 2010 | DOI: 10.1002/marc.200900894
Dual luminescence from transition-metal terpyridine complexes opens a doorway for supramolecular white emitters with the potential of tuning the spectral properties by tailoring the electronic coupling between various excited states by structural design of the terpyridine ligand.
Markus Gallei, Stefan Tockner, Roland Klein and Matthias Rehahn
Article first published online: 6 APR 2010 | DOI: 10.1002/marc.200900897
Three ferrocene-based monomers are shown to be valuable starting materials for creating block copolymers with different silacyclobutanes. The applied living anionic polymerization guarantees high blocking efficiencies as well as narrow block-length and molar-mass distributions. The microphase-separated materials are expected to be valuable precursors of novel functional macromolecules and smart ceramics.
Shihu Wang and Elena E. Dormidontova
Article first published online: 4 MAR 2010 | DOI: 10.1002/marc.200900900
The equilibrium properties of metallo-supramolecular micelles are studied by computer simulations as a function of aggregation number, association energy and corona block length. We found that with an increase of aggregation number the area per corona-block attached to the core decreases, while the fraction of 2:1 ligand metal complexes in the bulk and 1:1 ligand metal complexes on the surface increases.
Xun Jin Zhu and Bradley J. Holliday
Article first published online: 6 APR 2010 | DOI: 10.1002/marc.200900902
A new metal-containing conducting metallopolymer was deposited directly on electrode surfaces as a transparent, deep red film by electrochemical coupling reaction. The metal complex is located directly in the conjugated backbone of the polymer and displays strong electronic interactions between the organic bridge and metal center. Additionally, the Ru(bpp)(terpy)2+ moieties enhance the photosensitivity of the conducting metallopolymer in the visible region.
Xi Yu, Chandramouleeswaran Subramani, Xiaochao Yang, Chae Kyu Kim and Vincent M. Rotello
Article first published online: 19 MAR 2010 | DOI: 10.1002/marc.200900925
Aldehyde groups generated upon UV irradiation of chloromethyl styrene are utilized as surface active groups for polymer surface functionalization through aldehyde-amine chemistry. Using this method, we successfully activate the inert nanoimprint polymer resist pattern, allowing facile immobilization of dyes, nanoparticles, and enzymes onto the pattern. The processes were characterized by attenuated total reflection infrared (ATR-IR), X-ray photoelectron spectroscopy (XPS), and fluorescence microscopy.
Haiyan Li and Frieder Jäkle
Article first published online: 30 APR 2010 | DOI: 10.1002/marc.200900932
The organoboron donor–π–acceptor polymer (image) is strongly luminescent in solution and the solid state. Electronic communication between nitrogen and boron is pronounced according to electrochemical studies, and a distinct solvatochromic effect is indicative of the charge-transfer character of the emission. The luminescence was effectively quenched upon exposure to fluoride and cyanide suggesting potential use as a probe for anions.
Andreas Wild, Stephanie Hornig, Florian Schlütter, Jürgen Vitz, Christian Friebe, Martin D. Hager, Andreas Winter and Ulrich S. Schubert
Article first published online: 21 APR 2010 | DOI: 10.1002/marc.201000010
A water-soluble dextran-PEG comb-polymer was synthesized by complexation of a terpyridine functionalized dextran ester with a terpyridine RuII complex functionalized with PEG. Different degrees of substitution of the terpyridine dextran ester were obtained easily, and the complexation behavior was studied in detail using UV–vis titration and viscosimetry titration both utilizing FeII ions. The hydrophobic terpyridine functionalized dextrans can be further formulated into nanospheres.
Jieshu Qian, Gerald Guerin, Graeme Cambridge, Ian Manners and Mitchell A. Winnik
Article first published online: 17 MAY 2010 | DOI: 10.1002/marc.201000092
Addition of THF, a common good solvent, to a solution of PI1000–PFS50 block copolymer micelles in decane leads to broadening of the length distribution. Instead of promoting dissociation of polymer molecules from the ends of the micelles, the THF induces the fragmentation of the micelles.
Graeme Cambridge, Gerald Guerin, Ian Manners and Mitchell A. Winnik
Article first published online: 17 MAY 2010 | DOI: 10.1002/marc.201000104
Polyferrocenylsilane (PFS) block copolymers form rodlike micelles in selective solvents by a seeded growth mechanism. Micelles of four different PFS block copolymers were grown from suspensions of a common seed micelle. The length of the micelles varied with the nature of the corona-forming block.
Article first published online: 17 MAY 2010 | DOI: 10.1002/marc.201090024
Back Cover: The image presents the self-assembly of polymeric precursors to form supramolecular star-shaped polymers. Supramolecular star-shaped polymers are an interesting class of materials that combine the properties of star-shaped polymers and supramolecular interactions. Further details can be found in the article by Richard Hoogenboom,* Brian C. Moore, and Ulrich S. Schubert*on page 840.