Macromolecular Rapid Communications

Cover image for Vol. 30 Issue 18

September 17, 2009

Volume 30, Issue 18

Pages 1519–1593

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Macromol. Rapid Commun. 18/2009

      Junwon Han, Byung Ho Jeon, Chang Y. Ryu, James J. Semler, Young K. Jhon and Jan Genzer

      Version of Record online: 9 SEP 2009 | DOI: 10.1002/marc.200990044

      Thumbnail image of graphical abstract

      Front Cover: The image shows a schematic illustrating the adsorption- and solvency-mediated detection of chemical composition and co-monomer sequence distribution in random copolymers by means of interaction chromatography (THF: tetrahydrofuran; IO: isooctane; MC: methylene chloride; ACN: acetonitrile). Further details can be found in the article by J. Han, B. H. Jeon, C. Y. Ryu,* J. J. Semler, Y. K. Jhon, and J. Genzer*on page 1543.

  2. Contents

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

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Supramolecular Self-Assembly of Nonlinear Amphiphilic and Double Hydrophilic Block Copolymers in Aqueous Solutions (pages 1523–1532)

      Zhishen Ge and Shiyong Liu

      Version of Record online: 30 JUN 2009 | DOI: 10.1002/marc.200900182

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      Recent developments in the field of supra-molecular self-assembly in aqueous solution are summarized for amphiphilic and double hydrophilic block copolymers possessing nonlinear chain topologies, including miktoarm star polymers, dendritic–linear block copolymers, cyclic block copolymers, and comb-shaped copolymer brushes.

  4. Communications

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. A Triphenylamine-Based Conjugated Polymer with Donor-π-Acceptor Architecture as Organic Sensitizer for Dye-Sensitized Solar Cells (pages 1533–1537)

      Wei Zhang, Zhen Fang, Mingjuan Su, Mark Saeys and Bin Liu

      Version of Record online: 10 JUL 2009 | DOI: 10.1002/marc.200900243

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      A conjugated polymer sensitizer containing an electron donating backbone (triphenylamine) and an electron accepting side chain (cyanoacetic acid) with conjugated thiophene units as the linkers has been synthesized. Modeling results have shown that there is a pronounced intramolecular charge separation upon excitation of the polymer, which indicates that the excited electrons could be injected into the conduction band of TiO2 via the carbonyl group attached to the TiO2 surface. DSSC with an energy conversion efficiency of 3.39% was obtained under AM 1.5 G illumination using such polymer as sensitizer, which represents the highest efficiency for polymer dye-sensitized DSSC.

    2. Layer-by-Layer Assembled Nanotubes as Biomimetic Nanoreactors for Calcium Carbonate Deposition (pages 1538–1542)

      Qiang He, Helmuth Möhwald and Junbai Li

      Version of Record online: 30 JUN 2009 | DOI: 10.1002/marc.200900261

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      Calcium carbonate can be biomimetically synthesized inside the cavities of layer-by-layer assembled polyelectrolyte nanotubes by the catalysis of urease. The size of the calcium carbonate precipitates can be controlled by the cavity dimensions. This may allow polyelectrolyte nanotubes to be applied in the fields of nanomaterials synthesis, controlled release, and drug delivery.

    3. Discriminating Among Co-monomer Sequence Distributions in Random Copolymers Using Interaction Chromatography (pages 1543–1548)

      Junwon Han, Byung Ho Jeon, Chang Y. Ryu, James J. Semler, Young K. Jhon and Jan Genzer

      Version of Record online: 15 JUL 2009 | DOI: 10.1002/marc.200900282

      Thumbnail image of graphical abstract

      Interaction chromatography is used to detect monomer sequence distributions in A/B random copolymers by tailoring their adsorption inside a chromatographic column through variations of the solvent quality and the chemistry of the stationary phase.

    4. Substrate-Induced Controllable Wrinkling for Facile Nanofabrication (pages 1549–1553)

      Zhong Li, Dayong Yang, Xing Liu and Hongwei Ma

      Version of Record online: 10 JUL 2009 | DOI: 10.1002/marc.200900284

      Thumbnail image of graphical abstract

      A facile strategy was developed to generate patterned wrinkles as small as 300 nm on Au-poly(dimethylsiloxane) (PDMS) bilayers fixed on silicon wafer via a conductive adhesive tape (CAT), where the PDMS must be thinner than 82 μm and the CAT must be of porous structure that could act as mini balloons.

    5. Polymerizable Ionic Liquid Crystals (pages 1554–1558)

      Olga Jazkewitsch and Helmut Ritter

      Version of Record online: 8 JUL 2009 | DOI: 10.1002/marc.200900187

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      The synthesis of novel N-vinylimidazole containing thermotropic liquid crystalline ionic liquids is described. The self-assembly of these organic salts is induced by the introduction of mesogenic, rod-like biphenyl- and coumarin-based molecules. The thermal behaviour of the ionic liquid crystals was investigated by polarizing optical microscopy and differential scanning calorimetry. Subsequently, the monomer ionic liquids were polymerized by a free-radical mechanism.

    6. Amphiphilic Hybrid π-Conjugated Polymers Containing Polyhedral Oligomeric Silsesquioxanes (pages 1559–1563)

      Junpei Miyake, Toshiyuki Sawamura, Kenta Kokado and Yoshiki Chujo

      Version of Record online: 10 JUL 2009 | DOI: 10.1002/marc.200900152

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      Amphiphilic hybrid π-conjugated polymers that contain polyhedral oligomeric silsesquioxanes have been successfully synthesized by the Sonogashira–Hagihara polycondensation reaction. In these polymers, the π-conjugation length was extended along the poly(p-phenylene-ethynylene) backbone. Furthermore, the content of POSS substituents can influence the aggregation behavior of the polymers and subsequent luminescent properties.

    7. Reactive Hydrogel Networks for the Fabrication of Metal–Polymer Nanocomposites (pages 1564–1569)

      Ihor Tarnavchyk, Andriy Voronov, Ananiy Kohut, Nataliya Nosova, Serhiy Varvarenko, Volodymyr Samaryk and Stanislav Voronov

      Version of Record online: 8 JUL 2009 | DOI: 10.1002/marc.200900285

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      A facile approach that does not require additional reducing agent has been applied to prepare colloidal metal nanoparticle–hydrogel nanocomposites. Up to now no reports have described the in-situ synthesis of metal nanoparticles in a hydrogel network without additional reducing agent. Moreover, to our knowledge, this is the first time that gold and silver colloidal nanoparticles have been prepared within the same polymeric hydrogel network composition.

    8. Cross-Linked Conjugated Polymers for Achieving Patterned Three-Color and Blue Polymer Light-Emitting Diodes with Multi-Layer Structures (pages 1570–1576)

      Xianyu Deng and King Young Wong

      Version of Record online: 15 JUL 2009 | DOI: 10.1002/marc.200900183

      Thumbnail image of graphical abstract

      An active-gas-free environment leads to cross-linking of polymer main chains. The cross-linked polymer has excellent solvent resistance and an increased bandgap. Using this reaction, three-color PLEDs with a multi-layer structure are realized by dry photo-patterning, and multi-layer blue-emitting devices with dramatically enhanced efficiency can be achieved.

    9. A Novel Strategy for the Synthesis of Sheet-Like Polyaniline (pages 1577–1582)

      Haibin Zhang, Jixiao Wang, Zhi Wang, Fengbao Zhang and Shichang Wang

      Version of Record online: 10 JUL 2009 | DOI: 10.1002/marc.200900228

      Thumbnail image of graphical abstract

      Sheet-like polyaniline (PANI) with controllable sizes have been successfully fabricated by recycling the waste liquids discharged by conventional aniline polymerization, which is of benefit to save energy and resources and reduce pollution. A plausible formation mechanism of sheet-like PANI is proposed, which provides some novel insights into the synthesis, morphology control, and assembly of PANI micro/nanomaterials and might be helpful for the assembly of other conducting polymer micro/nanomaterials.

    10. Preparation of Ag-Embedded Polystyrene Nanospheres and Nanocapsules by Miniemulsion Polymerization (pages 1583–1588)

      Haeng-Deog Koh, Mohammad Changez, Jung-Pil Lee and Jae-Suk Lee

      Version of Record online: 21 JUL 2009 | DOI: 10.1002/marc.200900222

      Thumbnail image of graphical abstract

      Ag-coated PS nanospheres (left) and Ag/liquid (isopropyl myristate, IPM)-encapsulated nanocapsules (right) were synthesized by miniemulsion polymerization in the presence of a water-soluble KPS and an oil-soluble AIBN initiator. An IPM solution containing dodecanethiol-capped Ag NPs acts as a hydrophobe to suppress Ostwald ripening of miniemulsified droplets.

    11. Thinner is Better: An Ultrathin Conducting Oligoaniline Film for Gas Microsensors with Ultralow Detection Limits (pages 1589–1593)

      Zhuang Xie, Liting Duan, Yuqian Jiang, Mianqi Xue, Meining Zhang and Tingbing Cao

      Version of Record online: 10 JUL 2009 | DOI: 10.1002/marc.200900240

      Thumbnail image of graphical abstract

      A gas microsensor is developed by integrating an oligoaniline film with microscale gold electrodes. The nanoscale oligoaniline film is fabricated on a poly-(dimethylsiloxane) substrate using graft polymerization with FeCl3 as a mild oxidant. The as-fabricated film is around 14-nm thick and above 85% transmittance on the PDMS substrate. The microsensor shows a ppb level detection limit with rapid response and high sensitivity to NH3 sensing.

  5. Back Cover

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Feature Article
    5. Communications
    6. Back Cover
    1. Macromol. Rapid Commun. 18/2009

      Zhong Li, Dayong Yang, Xing Liu and Hongwei Ma

      Version of Record online: 9 SEP 2009 | DOI: 10.1002/marc.200990046

      Thumbnail image of graphical abstract

      Back Cover: A one-step strategy is developed to generate patterned wrinkles on Au–poly(dimethylsiloxane) (PDMS) bilayers in contact with a conductive adhesive tape (CAT). The key is that a thin PDMS film (<82 µm) rests on a porous CAT, where the CAT acts as a mini balloon to induce local stretching of PDMS. Further details can be found in the article by Z. Li, D. Yang,* X. Liu, and H. Ma*on page 1549.

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