Macromolecular Rapid Communications

Cover image for Vol. 31 Issue 21

November 1, 2010

Volume 31, Issue 21

Pages 1831–1913

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 21/2010

      Meng-Yi Bai and Younan Xia

      Article first published online: 25 OCT 2010 | DOI: 10.1002/marc.201090057

      Thumbnail image of graphical abstract

      Cover: The image presents the use of polystyrene hollow spheres, containing a hole on the surface, as templates to fabricate double-shelled polypyrrole hollow particles with a unique structure similar to that of a thermal bottle. Thanks to the hole on the surface, the monomer and initiator can easily diffuse into the interior of the hollow template to generate uniform polypyrrole coatings on both the inner and outer surfaces. The morphology and porosity of the resulting pyrrole coatings can be manipulated and fine-tuned by adjusting a number of parameters. Further information can be found in the article by M.-Y. Bai and Y. Xia*on page 1863.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 21/2010 (pages 1831–1834)

      Article first published online: 25 OCT 2010 | DOI: 10.1002/marc.201090058

  3. Review

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Feature Article
    6. Communications
    1. On the Importance of Morphology Control in Polymer Solar Cells (pages 1835–1845)

      Svetlana van Bavel, Sjoerd Veenstra and Joachim Loos

      Article first published online: 25 OCT 2010 | DOI: 10.1002/marc.201000080

      Thumbnail image of graphical abstract

      The volume morphology of the bulk heterojunction photoactive layer determines the performance of polymer solar cells. In this paper the critical parameters are discussed influencing morphology creation and thus the ultimate light conversion efficiency for a given electron acceptor and donor system.

  4. Feature Article

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Feature Article
    6. Communications
    1. RAFT-Mediated Polymerization—A Story of Incompatible Data? (pages 1846–1862)

      Bert Klumperman, Eric T. A. van den Dungen, Johan P. A. Heuts and Michael J. Monteiro

      Article first published online: 25 OCT 2010 | DOI: 10.1002/marc.200900907

      Thumbnail image of graphical abstract

      The anecdotal six orders of magnitude difference in the RAFT equilibrium constant between the slow fragmentation model and the intermediate radical termination model are reviewed. Although a clear answer for the discrepancy is still lacking, directions are found to reconcile the dispute. Reevaluation of rate constants and new insights in their chain length dependence are important in this respect.

  5. Communications

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Feature Article
    6. Communications
    1. Facile Synthesis of Double-Shelled Polypyrrole Hollow Particles with a Structure Similar to That of a Thermal Bottle (pages 1863–1868)

      Meng-Yi Bai and Younan Xia

      Article first published online: 20 SEP 2010 | DOI: 10.1002/marc.201000385

      Thumbnail image of graphical abstract

      This paper describes a simple method for generating double-shelled hollow particles made of polypyrrole, with a unique structure resembling that of a thermal bottle. This novel class of hollow particles with controllable shell thickness and surface porosity is expected to find a wide range of applications, including bioencapsulation, drug delivery, as well as fabrication of biosensors, electro-catalytic membranes for fuel cells, and supercapacitors for energy storage.

    2. Multifunctional Poly(2-oxazoline) Nanoparticles for Biological Applications (pages 1869–1873)

      Kristian Kempe, Antje Vollrath, Hendrik W. Schaefer, Tobias G. Poehlmann, Christoph Biskup, Richard Hoogenboom, Stephanie Hornig and Ulrich S. Schubert

      Article first published online: 25 OCT 2010 | DOI: 10.1002/marc.201000283

      Thumbnail image of graphical abstract

      Multifunctional copoly(2-oxazoline) nanoparticles were prepared that were taken up by cells as revealed by confocal laser scanning microscopy measurements. The polymer contains double bond side chains as potential reaction sites for “thio”-click reactions as well as a fluorescein label covalently bound to the polymer backbone. Using the nanoprecipitation technique, spherical nanoparticles of 200–800 nm were obtained. Confocal laser scanning microscopy measurements and flow cytometry shows uptake of the particles into the cells without any toxic effect.

    3. High Solids Content, Soap-Free, Film-Forming Latexes Stabilized by Laponite Clay Platelets (pages 1874–1880)

      Elodie Bourgeat-Lami, Thiago Rodrigues Guimarães, Ana Maria Cenacchi Pereira, Gizelda Maria Alves, José Carlos Moreira, Jean-Luc Putaux and Amilton Martins dos Santos

      Article first published online: 16 AUG 2010 | DOI: 10.1002/marc.201000305

      Thumbnail image of graphical abstract

      We report on the first successful synthesis of high solids content free-flowing Laponite-armored latexes by soap-free emulsion polymerization. The latexes are cast into nanostructured films with high optical quality and enhanced mechanical properties.

    4. Transparent, Versatile Chemical Vapor Sensor Using Supramolecular Assembly of Block Copolymer and Carbon Nanotubes (pages 1881–1885)

      Biplab K. Kuila and Manfred Stamm

      Article first published online: 6 SEP 2010 | DOI: 10.1002/marc.201000383

      Thumbnail image of graphical abstract

      A simple and novel approach is reported for developing a new class of transparent chemical vapor sensors with a low power consumption, high sensitivity, good selectivity, and excellent environmental stability. Prepatterned block copolymer substrates were utilized for the selective localization of carbon nanotubes at the block copolymer-air interface by the formation of supramolecular assemblies. The subsequently formed thin film devices are highly transparent (transmittance>90%) and sense a wide range of solvents of different polarity with good selectivity, fast response time, and recyclability.

    5. Fibrils Formed by Dendron-b-oligoaniline-b-dendron Block Co-oligomer (pages 1886–1891)

      Wei Xiong, Hanfu Wang and Yanchun Han

      Article first published online: 27 AUG 2010 | DOI: 10.1002/marc.201000303

      Thumbnail image of graphical abstract

      The self-assembly of dendron-b-oligoaniline-b-dendron triblock co-oligomer can be easily tuned according to the packing parameter in line with the shape effect of dendrons and the intermolecular π-π stacking of oligoaniline. As a result, the self-assembly morphology of the block co-oligomer goes through a series of evolutions from micelles to vesicles to fibrils.

    6. DNA-Templated Synthesis of Cationic Poly(3,4-ethylenedioxythiophene) Derivative for Supercapacitor Electrodes (pages 1892–1896)

      Hongwei Tang, Lili Chen, Chengfen Xing, Yu-Guo Guo and Shu Wang

      Article first published online: 6 SEP 2010 | DOI: 10.1002/marc.201000318

      Thumbnail image of graphical abstract

      A new class of cationic poly(3,4-ethylenedioxythiophene)–DNA composite (P(EDOT-N)-DNA) has been prepared by in situ chemical oxidative polymerization of EDOT-N monomer in the presence of salmon DNA as template. It exhibits superior capacitance behavior as well as good charge–discharge reversibility, which imparts good potential as an electrode material for energy storage devices.

    7. Radiation-Grafted Fluoropolymers Soaked with Imidazolium-Based Ionic Liquids for High-Performance Ionic Polymer–Metal Composite Actuators (pages 1897–1902)

      Jang Yeol Lee, Hyuck Sik Wang, Bye Ri Yoon, Man Jae Han and Jae Young Jho

      Article first published online: 6 SEP 2010 | DOI: 10.1002/marc.201000261

      Thumbnail image of graphical abstract

      A series of ionic polymer–metal composite actuators with high stability in air-operation as well as large bending displacement was constructed with radiation-grafted fluoropolymers as ionomeric matrix and ionic liquids as inner solvent. The prepared actuators exhibited greatly enhanced bending displacement compared to Nafion-based actuators, and were stable in air-operation for up to 104 cycles or 24h.

    8. Nanofibers Self-assembled from Structural Complementary Borono-decapeptides (pages 1903–1908)

      Chang-Sheng Chen, Tian-Jiao Ji, Xiao-Ding Xu, Xian-Zheng Zhang and Ren-Xi Zhuo

      Article first published online: 6 SEP 2010 | DOI: 10.1002/marc.201000292

      Thumbnail image of graphical abstract

      A series of borono-decapeptides (BPs1-3) were designed and synthesized. Owing to the complementary structure and proper hydrophobic/hydrophilic balance, BP1 (B(OH)2VEKELVKEKL-OH) and BP3 (B(OH)2AELELARARL-OH) can spontaneously self-assemble into well-defined nanofibers with a parallel β-sheet conformation in aqueous environment.

    9. Importance of the Position of the Chromophore Group on the Dissociation Process of Light Sensitive Alkoxyamines (pages 1909–1913)

      Yohann Guillaneuf, Davy-Louis Versace, Denis Bertin, Jacques Lalevée, Didier Gigmes and Jean-Pierre Fouassier

      Article first published online: 31 AUG 2010 | DOI: 10.1002/marc.201000316

      Thumbnail image of graphical abstract

      New photo-sensitive alkoxyamines have been designed using molecular orbital calculations to improve the selective C–O versus N–O cleavage. The targeted alkoxyamine is synthesized in one step and its reactivity under UV-vis investigated using both ESR and LFP. The ability of this alkoxyamine to control the photopolymerization of n-butyl acrylate is evidenced. The alkoxyamine is finally used to prepare covalently bonded multi-layered micro-patterns.

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