Macromolecular Rapid Communications

Cover image for Vol. 34 Issue 13

July 12, 2013

Volume 34, Issue 13

Pages 1037–1109

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Feature Article
    7. Communications
    1. You have free access to this content
      Macromol. Rapid Commun. 13/2013 (page 1037)

      Yongtai Zheng, Akihito Hashidzume and Akira Harada

      Version of Record online: 3 JUL 2013 | DOI: 10.1002/marc.201370041

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      Front Cover: Macroscopic pH-responsive self-assemblies are realized based on molecular recognition of cyclodextrins. Polyacrylamide gels are modified with dansyl and β-cyclodextrin residues to form the guest and host gels (Dns-gel and βCD-gel, respectively). Dns-gel and bCD-gel assemble together at pH ≥ 4.0, but disassemble at pH ≤ 3.0. Further details can be found in the article by Y. Zheng, A. Hashidzume, and A. Harada* on page 1062.

  2. Back Cover

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Feature Article
    7. Communications
    1. You have free access to this content
      Macromol. Rapid Commun. 13/2013 (page 1112)

      Nour F. Attia and Kurt E. Geckeler

      Version of Record online: 3 JUL 2013 | DOI: 10.1002/marc.201370044

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      Back Cover: Polyaniline has been found to be a good candidate for the storage of hydrogen, which can be generated from water by electrolysis using solar energy and then stored and transported in materials based on polyaniline and its composites for use as a clean fuel for vehicles and other energy-demanding systems. Further details can be found in the article by N. F. Attia and K. E. Geckeler* on page 1043.

  3. Masthead

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Feature Article
    7. Communications
    1. Macromol. Rapid Commun. 13/2013

      Version of Record online: 3 JUL 2013 | DOI: 10.1002/marc.201370042

  4. Contents

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Feature Article
    7. Communications
    1. You have free access to this content
  5. Feature Article

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Feature Article
    7. Communications
    1. Polyaniline as a Material for Hydrogen Storage Applications (pages 1043–1055)

      Nour F. Attia and Kurt E. Geckeler

      Version of Record online: 7 JUN 2013 | DOI: 10.1002/marc.201300255

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      Polyaniline (PANI) exhibits excellent electronic and thermal properties and has attracted research interest in hydrogen storage applications. It shows a promising capacity to store and release hydrogen at different temperature ranges. The hydrogen storage of differently structured PANI, the role of the electronic properties on the hydrogen uptake, the mechanisms of hydrogen sorption, and new research trends are discussed.

  6. Communications

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Masthead
    5. Contents
    6. Feature Article
    7. Communications
    1. Anionic Polysaccharides as Templates for the Synthesis of Conducting Polyaniline and as Structural Matrix for Conducting Biocomposites (pages 1056–1061)

      Ann-Sofie Leppänen, Chunlin Xu, Jun Liu, Xiaoju Wang, Markus Pesonen and Stefan Willför

      Version of Record online: 17 MAY 2013 | DOI: 10.1002/marc.201300275

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      Polysaccharide/polyaniline biocomposites are synthesized using a green, chemoenzymatic procedure. Anionic polysaccharides, for example, naturally occurring κ-carrageenan, and TEMPO-oxidized cellulose, are used as templates in laccase-catalyzed polymerization of aniline.

    2. pH-Responsive Self-Assembly by Molecular Recognition on a Macroscopic Scale (pages 1062–1066)

      Yongtai Zheng, Akihito Hashidzume and Akira Harada

      Version of Record online: 31 MAY 2013 | DOI: 10.1002/marc.201300324

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      pH-Responsive macroscopic self-assembly based on molecular recognition is constructed using polyacrylamide-based gels carrying dansyl (Dns) and β-cyclodextrin (βCD) residues, which are represented as Dns-gel and βCD-gel. Dns-gel and βCD-gel assemble together at pH ≥ 4.0, but disassemble at pH ≤ 3.0. This is because Dns residues are protonated at lower pH, which no longer interact with βCD residues on the interface of gel assembly.

    3. Poly(2-vinylpyridine)-block -Poly(ϵ-caprolactone) Single Crystals in Micellar Solution (pages 1067–1071)

      Mei Su, Haiying Huang, Xiaojing Ma, Qian Wang and Zhaohui Su

      Version of Record online: 10 MAY 2013 | DOI: 10.1002/marc.201300218

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      Single crystals of uniform shape and size in large quantities can be obtained via self-assembly of a coil-crystalline block copolymer by simply adding a selective solvent into the copolymer solution.

    4. The Utilization of Isolation Chromophore in an “A3+B2” Type Second-Order Nonlinear Optical Hyperbranched Polymer (pages 1072–1079)

      Wenbo Wu, Cheng Ye, Jingui Qin and Zhen Li

      Version of Record online: 27 MAY 2013 | DOI: 10.1002/marc.201300226

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      An isolation chromophore is introduced into “A3+B2”-type hyperbranched polymers to further improve the comprehensive performance of nonlinear optical (NLO) materials. Owing to the advantages of the isolation chromophore and the three-dimensional (3D) spatial isolation from the highly branched structure, P1 demonstrates a large NLO coefficient, low optical loss, and good temporal stability.

    5. Facile Polymer Functionalization of Hydrothermal-Carbonization-Derived Carbons (pages 1080–1084)

      Hiromitsu Urakami, Ali Gorkem Yilmaz, Petre Osiceanu, Yusuf Yagci, Filipe Vilela and Maria-Magdalena Titirici

      Version of Record online: 17 MAY 2013 | DOI: 10.1002/marc.201300209

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      Facile “graft-to” cycloaddition-mediated polymer functionalization of hydrothermal carbonization (HTC)-derived materials is carried out by use of a dienophile-functionalized polymer. Masked maleimide terminated poly(ethylene glycol) (PEG) is used as a model dienophile containing polymer to graft onto the surface of the HTC material. Analysis of PEGylated carbons (Fourier transform infrared, elemental analysis, X-ray photoelectron spectroscopy, and dispersion studies) all indicate the successful surface modification.

    6. Color Indicator for Supramolecular Polymer Chemistry: Phenolphthalein-Containing Thermo- and pH-Sensitive N-(Isopropyl)acrylamide Copolymers and β-Cyclodextrin Complexation (pages 1085–1089)

      Carolin Fleischmann and Helmut Ritter

      Version of Record online: 27 MAY 2013 | DOI: 10.1002/marc.201300292

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      Copolymers of N-(isopropyl)acrylamide (1) and N-(2-hydroxy-5-(1- (4-hydroxyphenyl)-3-oxo-1,3-dihydroisobenzofuran-1-yl)benzyl)acrylamide (2) are analyzed in detail. The complexation of polymer attached phenolphthalein by β-cyclodextrins is shown for the first time. The resulting color switch in basic solution enables visualization of the formation of supramolecular structures.

    7. Transient Absorption Spectroscopy Studies on Polythiophene–Fullerene Bulk Heterojunction Organic Blend Films Sensitized with a Low-Bandgap Polymer (pages 1090–1097)

      Heiko Löslein, Tayebeh Ameri, Gebhard J. Matt, Markus Koppe, Hans J. Egelhaaf, Anna Troeger, Vito Sgobba, Dirk M. Guldi and Christoph J. Brabec

      Version of Record online: 12 JUN 2013 | DOI: 10.1002/marc.201300354

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      Polythiophene–fullerene bulk heterojunction ternary blend films are investigated by transient absorption spectroscopy. Hole transfer from PCPDTBT-positive polarons to P3HT in the blend film can be visualized. This process evolves within 140 ps and is discussed with respect to the proposed charge-generation mechanisms.

    8. Comprehensive Triblock Copolymer Analysis by Coupled Thermal Field-Flow Fractionation-NMR (pages 1098–1103)

      Werner van Aswegen, Wolf Hiller, Mathias Hehn and Harald Pasch

      Version of Record online: 31 MAY 2013 | DOI: 10.1002/marc.201300286

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      For the first time, online coupled field-flow fractionation 1H-NMR is used for the analysis of the molecular structure of triblock copolymers of polybutadiene, poly(2-vinylpyridine) and poly(t-butyl methacrylate). Based on the compositional analysis and a suitable calibration of the system, the samples are quantified regarding molar mass, chemical composition, and microstructure providing comprehensive information on the complex structure of these block copolymers.

    9. A Multicolor Photoinitiator for Cationic Polymerization and Interpenetrated Polymer Network Synthesis: 2,7-Di-tert-butyldimethyldihydropyrene (pages 1104–1109)

      Mohamad-Ali Tehfe, Frédéric Dumur, Neus Vilà, Bernadette Graff, Cédric R. Mayer, Jean Pierre Fouassier, Didier Gigmes and Jacques Lalevée

      Version of Record online: 4 JUN 2013 | DOI: 10.1002/marc.201300302

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      2,7-Di-tert-butyldimethyldihydropyrene is proposed as the first panchromatic photoinitiator for cationic polymerizations and interpenetrated polymer network synthesis. Excellent polymerization profiles are reached and the chemical mechanisms are investigated

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