Macromolecular Rapid Communications

Cover image for Vol. 32 Issue 19

October 4, 2011

Volume 32, Issue 19

Pages 1499–1587

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 19/2011

      Yeonju Lee and Kurt E. Geckeler

      Version of Record online: 23 SEP 2011 | DOI: 10.1002/marc.201190051

      Thumbnail image of graphical abstract

      Front Cover: Biocompatible single-walled carbon nanotubes wrapped by the water-soluble, synthetic polyampholyte, poly[2-(dimethylamino)ethyl methacrylate-co-methacrylic acid], are internalized by mouse embryonic fibroblast NIH-3T3 cells without any significant cytotoxicity. Further details can be found in the article by Y. Lee and K. E. Geckeler*on page 1518.

  2. Back Cover

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 19/2011

      Masaki Moritsugu, Takeru Ishikawa, Tetsuro Kawata, Tomonari Ogata, Yutaka Kuwahara and Seiji Kurihara

      Version of Record online: 23 SEP 2011 | DOI: 10.1002/marc.201190052

      Thumbnail image of graphical abstract

      Back Cover: On-off switching of reflection from multi-bilayered films consisting of azo-polymer liquid crystal and polyvinylalcohol was achieved by annealing and UV-irradiation. The switching is based on the difference in the refractive indices (Δn) between the polymer layers, arising from the change in the molecular orientation of azo-chromophores. Further details can be found in the article by M. Moritsugu, T. Ishikawa, T. Kawata, T. Ogata, Y. Kuwahara, and S. Kurihara*on page 1546.

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
  4. Feature Article

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Kumada Catalyst-Transfer Polycondensation: Mechanism, Opportunities, and Challenges (pages 1503–1517)

      Anton Kiriy, Volodymyr Senkovskyy and Michael Sommer

      Version of Record online: 28 JUL 2011 | DOI: 10.1002/marc.201100316

      Thumbnail image of graphical abstract

      The lately discovered but rapidly developing chain-growth Kumada catalyst-transfer polycondensation (KCTP) has great potential for the preparation of all kinds of well-defined conjugated polymer architectures. This review article is aimed to give insight into recent progress in the synthesis of conjugated polymers and the mechanism of KCTP, and provides a comprehensive picture of this exciting polymerization method.

  5. Communications

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Polyampholyte-Wrapped Carbon Nanotubes: Preparation and Internalization by Embryonic Fibroblast Cells (pages 1518–1525)

      Yeonju Lee and Kurt E. Geckeler

      Version of Record online: 13 JUL 2011 | DOI: 10.1002/marc.201100226

      Thumbnail image of graphical abstract

      Water-dispersible, polyampholyte-wrapped, single-walled carbon nanotubes are shown to exhibit no cytotoxicity and to be taken up by endocytosis into mouse embryonic fibroblast NIH-3T3 cells. The blue fluorescence indicates the nuclei and the green fluorescence shows the cellular accumulation of the FITC-conjugated polyampholyte-wrapped SWNTs.

    2. Selective and Sequential Re-Assembly of Patterned Block Copolymer Thin Film for Fabricating Polymeric, Inorganic, and Their Composite Nanostructured Arrays (pages 1526–1532)

      Xihong Zu, Jian Gong, Weiping Tu and Yulin Deng

      Version of Record online: 7 JUL 2011 | DOI: 10.1002/marc.201100313

      Thumbnail image of graphical abstract

      A novel and versatile approach for fabricating ordered polymeric and organic–inorganic composite nanostructured arrays is reported. Inorganic nanoparticles that were randomly distributed inside or on the PS-b-P4VP thin film can be pulled to the rim of PS and P4VP along the movements of PS and P4VP blocks, respectively, using selective and sequential vapor treatment.

    3. Self-Assembly Pluronic and β-Cyclodextrin to Hollow Nanospheres for Enhanced Gene Delivery (pages 1533–1538)

      Min-Min Fan, Xi Zhang, Jie Qin, Bang-Jing Li, Xun Sun and Sheng Zhang

      Version of Record online: 22 JUL 2011 | DOI: 10.1002/marc.201100272

      Thumbnail image of graphical abstract

      In this study, supramolecular F127-diamine/β-CD nanospheres consisting of polyethylenimine core were synthesized and investigated for gene delivery. The results demonstrated strong ability to bind and condense plasmid DNA or PEI/DNA into nanometer-sized particles which are suitable for gene delivery. In HepG2cells, the supramolecular nanoparticles with PEI/DNA core display low cytotoxicity and high transfection efficiency.

    4. Mechanics of Homeotropically Ordered Smectic-A Elastomers with Global Oblate Chain Conformation (pages 1539–1545)

      Dominic Kramer and Heino Finkelmann

      Version of Record online: 22 JUL 2011 | DOI: 10.1002/marc.201100259

      Thumbnail image of graphical abstract

      For the first time, we present direct measurements of the smectic-A layer compression modulus Bin liquid-crystalline elastomers with global oblate chain conformation. B is considerably larger than those observed for conventional low molar mass liquid crystals and decreases significantly with increasing local disorder, introduced by the crosslinker.

    5. Thermal and Photochemical Control of Molecular Orientation of Azo-Functionalized Polymer Liquid Crystals and Application for Photo-Rewritable Paper (pages 1546–1550)

      Masaki Moritsugu, Takeru Ishikawa, Tetsuro Kawata, Tomonari Ogata, Yutaka Kuwahara and Seiji Kurihara

      Version of Record online: 5 JUL 2011 | DOI: 10.1002/marc.201100244

      Thumbnail image of graphical abstract

      A photo-responsive multi-bilayered film consisting of azobenzene polymer liquid crystals (PA6Az1) and poly(vinyl alcohol) (PVA) has been prepared on a glass substrate. The reflection of the multi-bilayered film disappeared by annealing and reappeared by UV irradiation. This on–off switching of the reflection was achieved by a combination of the thermally spontaneous out-of-plane molecular orientation followed by photoisomerization of PA6Az1.

    6. Synthesis and Photovoltaic Properties of a Thienylenevinylene and Diketopyrrolopyrrole Copolymer with High Mobility (pages 1551–1556)

      Bogyu Lim, Jun-Seok Yeo, Dongyoon Khim and Dong-Yu Kim

      Version of Record online: 22 JUL 2011 | DOI: 10.1002/marc.201100327

      Thumbnail image of graphical abstract

      A novel thienylenevinylene–diketopyrrolopyrrole copolymer is synthesized and evaluated for use in organic field–effect transistors and organic solar cells. The polymer exhibits a low band-gap of 1.43eV and a broad absorption band covers the entire visible region. The new polymer demonstrates improved hole mobility and photovoltaic properties in bulk-heterojunction solar cells compared with thienylenevinylene-benzothiadiazole-based polymers.

    7. Reversible Photoinduced Switching of Permeability in a Cast Non-Porous Film Comprising Azobenzene Liquid Crystalline Polymer (pages 1557–1562)

      Jian Liu, Mingle Wang, Mingling Dong, Liude Gao and Jingjing Tian

      Version of Record online: 22 JUL 2011 | DOI: 10.1002/marc.201100370

      Thumbnail image of graphical abstract

      Fast, reversible, and large variations in the permeability of an azobenzene-containing side-chain liquid crystalline non-porous film is successfully achieved upon exposure to alternate irradiation of circularly polarized light and non-polarized light, which transforms the film between a monodomain orientated structure and an isotropic liquid crystal glass.

    8. Macroporous Polymers with Hierarchical Pore Structure from Emulsion Templates Stabilised by Both Particles and Surfactants (pages 1563–1568)

      Ling L. Ching Wong, Vivian O. Ikem, Angelika Menner and Alexander Bismarck

      Version of Record online: 28 JUL 2011 | DOI: 10.1002/marc.201100382

      Thumbnail image of graphical abstract

      The synthesis of interconnected, hierarchical macroporous polymers using emulsion templating is reported. We used HIPEs stabilised simultaneously by particles and a surfactant in which particle and surfactant water droplets coexist. Upon polymerisation of the minority oil phase, macroporous polymers with a hierarchical pore structure are obtained. Our emulsion preparation protocol results in significant differences in the structural morphology and physical properties of resultant macroporous polymers which are unique when compared to conventional polyHIPEs and poly-Pickering-HIPEs.

    9. A New Strategy to Prepare Polymer-based Shape Memory Elastomers (pages 1569–1575)

      Shijie Song, Jiachun Feng and Peiyi Wu

      Version of Record online: 26 JUL 2011 | DOI: 10.1002/marc.201100298

      Thumbnail image of graphical abstract

      Polymer-based shape memory elastomers, utilizing the micro-separation of ABA tri-block copolymer to setup a three-dimensional network as the permanent phase and the preferential embedment of midblock-selective small molecules as the switch phase, exhibit excellent shape memory behavior. Upon the loading of small molecules, the microstructure and phase morphology can be manipulated leading to the tailoring of the final mechanical properties.

    10. Synthesis of Well-defined Amphiphilic Block Copolymers by Organotellurium-Mediated Living Radical Polymerization (TERP) (pages 1576–1582)

      Santosh Kumar, Mohammad Changez, C. N. Murthy, Shigeru Yamago and Jae-Suk Lee

      Version of Record online: 26 JUL 2011 | DOI: 10.1002/marc.201100277

      Thumbnail image of graphical abstract

      A well-defined synthesis of low molecular weight polystyrene-block-poly (2-vinylpyridine) (PS-b-P2VP) and (P2VP-b-PS) as amphiphilic diblock copolymers (surfactant-like) with different P2VP block lengths, via TERP is reported. Furthermore, a very simple approach to producing highly dense arrays of titania NPs (TiO2) is presented by using the sol–gel method.

    11. Electro-active Polymer Actuator Based on Sulfonated Polyimide with Highly Conductive Silver Electrodes Via Self-metallization (pages 1583–1587)

      Jiangxuan Song, Jin-Han Jeon, Il-Kwon Oh and K. C. Park

      Version of Record online: 12 AUG 2011 | DOI: 10.1002/marc.201100318

      Thumbnail image of graphical abstract

      We report a facile approach to prepare well-defined silver sulfonated polyimide using in situ self-metallization for electro-active artificial muscle. The as-prepared sulfonated polyimide with highly conductive silver electrode shows a much higher tip displacement compared with Nafion-based IPMC actuator.

SEARCH

SEARCH BY CITATION