Macromolecular Chemistry and Physics

Cover image for Vol. 217 Issue 24

December 2016

Volume 217, Issue 24

Pages 2665–2764

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      Macromol. Chem. Phys. 24/2016 (page 2665)

      Naofumi Naga, Saki Hashimoto, Tomoharu Miyanaga and Hidemitsu Furukawa

      Version of Record online: 16 DEC 2016 | DOI: 10.1002/macp.201670078

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      Front Cover: Fluorescence resonance energy transfer (FRET) sensitized emission of perylene by pyrene in a joint-linker type organic-inorganic hybrid gel is firstly observed. The present gels with controlled mesh size and homogeneous network should be usable as a molecular-size flask to conduct photochemical reaction. Further details can be found in the article by Naofumi Naga,* Saki Hashimoto, Tomoharu Miyanaga, and Hidemitsu Furukawa on page 2671.

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      Macromol. Chem. Phys. 24/2016 (page 2768)

      Kai Kan, Mitsuru Akashi and Hiroharu Ajiro

      Version of Record online: 16 DEC 2016 | DOI: 10.1002/macp.201670081

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      Back Cover: A novel strategy of dual dynamic functionality in polylactides bearing vanillin at chain end is demonstrated. Stereocomplex formation as the first function is selected to improve thermal property. Amine-imine reversible formation as the second function is selected to control morphology, resulting in rain-drop-like nanoparticles and spider-web-like fibrous on imine and aldehyde formation respectively. Further details can be found in the article by Kai Kan, Mitsuru Akashi, and Hiroharu Ajiro* on page 2679.

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    1. Masthead: Macromol. Chem. Phys. 24/2016

      Version of Record online: 16 DEC 2016 | DOI: 10.1002/macp.201670079

  4. Contents

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  5. Full Papers

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    1. Fluorescence Resonance Energy Transfer of Fluorescent Molecules in Joint-Linker Type Organic-Inorganic Hybrid Gels (pages 2671–2678)

      Naofumi Naga, Saki Hashimoto, Tomoharu Miyanaga and Hidemitsu Furukawa

      Version of Record online: 6 OCT 2016 | DOI: 10.1002/macp.201600272

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      Joint-linker type organic-inorganic hybrid gels containing pyrene and perylene are synthesized from multi-functional cyclic siloxane cubic silsesquioxane with α,ω-nonconjugated dienes, using a hydrosilylation reaction with a platinum catalyst in toluene. The resulting gels show fluorescence resonance energy transfer (FRET) sensitized emission of perylene.

    2. Polylactides Bearing Vanillin at Chain End Provided Dual Dynamic Interactions: Stereocomplex Formation and Nanostructure Control (pages 2679–2685)

      Kai Kan, Mitsuru Akashi and Hiroharu Ajiro

      Version of Record online: 2 NOV 2016 | DOI: 10.1002/macp.201600395

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      This is the first example of dual dynamic functionality in polylactides bearing vanillin at the chain end. It means stereocomplex formation of both enantiomeric polymers and reversibility through amine–imine transformation.

    3. Bis(4-methoxybenzoyl)diethylgermane: A Highly Efficient Photoinitiator for the Polymerization of Vinylcyclopropanes (pages 2686–2691)

      Yohann Catel, Urs Fischer, Pascal Fässler and Norbert Moszner

      Version of Record online: 18 OCT 2016 | DOI: 10.1002/macp.201600463

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      Bis(4-methoxybenzoyl)diethylgermane (BMDG) is shown to be an excellent photoinitiator for the photopolymerization of 1,1-disubstituted 2-vinylcyclopropanes. Vinylcyclopropane-based dental composites containing BMDG are formulated. These materials exhibit good mechanical properties and low polymerization shrinkage.

    4. Effect of Sulfonation Level on Sulfonated Aromatic Poly(ether sulfone) Membranes as Polymer Electrolyte for High-Temperature Polymer Electrolyte Membrane Fuel Cells (pages 2692–2699)

      Shiyan Feng, Kazunari Sasaki and Masamichi Nishihara

      Version of Record online: 7 NOV 2016 | DOI: 10.1002/macp.201600397

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      Water-tolerant and nonwater-tolerant membranes of sulfonated poly(ether sulfone) are investigated for high-temperature polymer electrolyte fuel cells. Nonwater-tolerant membranes can also keep their shapes and show two to three times higher water uptake than Nafion 212 at 120 °C and 23%RH. The optimum membrane shows higher proton conductivities than Nafion 212 to 20%RH at 120 °C.

    5. Well-Defined Magnetic Responsive Polymers Containing Ammonium FeCl4 from ROMP (pages 2700–2707)

      Xiaoliang Yu, Chunyan Mu, Dongdong Dai, Xiaoyan Yuan, Ke Zhang and Lixia Ren

      Version of Record online: 10 NOV 2016 | DOI: 10.1002/macp.201600435

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      Magnetic homopolymers and block copolymer which contains ammonium FeCl4 at the end of the side chain are prepared via living ring-opening metathesis polymerization of the precursor monomer followed by complexing with FeCl3. The resultant polymers are paramagnetic at room temperature and show obvious response to magnet in solution, powder, and film.

    6. Synthesis of Novel Cyclic Olefin Polymer with High Glass Transition Temperature via Ring-Opening Metathesis Polymerization (pages 2708–2716)

      Jing Cui, Ji-Xing Yang, Li Pan and Yue-Sheng Li

      Version of Record online: 10 NOV 2016 | DOI: 10.1002/macp.201600405

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      The novel cyclic olefin polymers are synthesized via ring-opening metathesis polymerization (ROMP) of three norbornene derivatives containing bulky hydrocarbon groups using three Grubbs catalysts (G1G3), followed by hydrogenation of the unsaturated polymers. Compared with H-PM1 and H-PM2, H-PM3 exhibits a Tg up to 277 °C, which is so far the highest value obtained by ROMP.

    7. Highly Stretchable, Mechanically Strong, Tough, and Self-Recoverable Nanocomposite Hydrogels by Introducing Strong Ionic Coordination Interactions (pages 2717–2725)

      Yang Hu, Wenfang Han, Guanhua Huang, Wuyi Zhou, Zhuohong Yang and Chaoyang Wang

      Version of Record online: 9 NOV 2016 | DOI: 10.1002/macp.201600398

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      Dual cross-linked (DC) nanocomposite poly(acrylamide-co-acrylic acid) hydrogels are facilely fabricated by introducing graphene oxide nanosheets and iron ions act as physical cross-linkers. Highly stretchable, mechanically strong, tough, and self-recoverable DC hydrogels are developed.

    8. Excellent Control of Perylene Diimide End Group in Polyfluorene via Suzuki Catalyst Transfer Polymerization (pages 2726–2735)

      Huiliang Sun, Shuren Zhang, Yike Yang, Xiao Li, Hongmei Zhan and Yanxiang Cheng

      Version of Record online: 9 NOV 2016 | DOI: 10.1002/macp.201600412

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      Aryl Pd(II) bromide complexes with tri-2,4-xylylphosphine as the auxiliary ligand can smoothly initiate Suzuki catalyst transfer polymerization of AB-type fluorene monomer at room temperature to provide polyfluorene with the perylene diimide end group.

    9. Synergistic Effects of Surfactant on Dielectric and Electrorheological Properties of Boronic Acid Derivative Polymer Dispersions (pages 2736–2743)

      Seyma Ozkan, Omer Yunus Gumus and Halil Ibrahim Unal

      Version of Record online: 10 OCT 2016 | DOI: 10.1002/macp.201600275

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      Boronic acid polymer based electrorheological fluids are determined to have low Δε′ values and show very weak polarizabilities. With the addition of Triton-X, the Δε′ values and polarizabilities are dramatically increased due to gathering of dipole groups as a result of formation of microclusters. Furthermore, conductivity and molecular structure of the polymers are other parameters that affect polarizability and electrorheological performance.

    10. A New Approach for the Synthesis of pH-Responsive Cross-Linked Micelles from a Poly(glycidyl methacrylate)-Based Functional Copolymer (pages 2744–2754)

      Gökhan Kocak, Gökhan Solmaz and Vural Bütün

      Version of Record online: 10 OCT 2016 | DOI: 10.1002/macp.201600326

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      Aqueous micellar solution of poly(ethylene glycol)methyl ether-block-poly(3-diethylamino-2-hydroxypropyl methacrylate) copolymer is successfully prepared at pH 12. Cores of micelles are cross-linked with divinyl sulfone at room temperature. The resulting core cross-linked micelles exhibit pH-responsive behavior.

    11. Kinetics and Modeling of the Radical Polymerization of Trimethylaminoethyl methacrylate chloride in Aqueous Solution (pages 2755–2764)

      Patrick Drawe, Hendrik Kattner and Michael Buback

      Version of Record online: 7 NOV 2016 | DOI: 10.1002/macp.201600362

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      Kinetics and modeling of the radical polymerization of trimethylaminoethyl methacrylate chloride in aqueous solution are studied between 30 and 70 °C by online near-infrared (NIR) spectroscopy and by single-pulse–pulsed-laser polymerization in conjunction with NIR spectroscopy to illustrate alternative routes toward individual rate coefficients for fully ionized monomers.

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