Macromolecular Chemistry and Physics

Cover image for Vol. 212 Issue 19

October 4, 2011

Volume 212, Issue 19

Pages 2067–2180

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Full Papers
    1. Macromol. Chem. Phys. 19/2011

      Yanting Luo, Juchen Guo, Chunsheng Wang and Deryn Chu

      Version of Record online: 23 SEP 2011 | DOI: 10.1002/macp.201190042

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      Cover:. Alkaline anion exchange membranes based on quaternized poly(methyl methacrylate-co-butyl acrylate-co-vinylbenzyl chloride) (QPMBV) are synthesized through miniemulsion copolymerization and an ion-exchanging process. The QPMBV membrane fuel cells demonstrate one of the best overall fuel cell performances, including high power density and durability. Further details can be found in the article by Y. Luo, J. Guo, C. Wang,* and D. Chu on page 2094.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Full Papers
  3. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Full Papers
    1. High Ionic Strength Promotes the Formation of Spherical Copolymer Particles (pages 2071–2086)

      Nancy Weber, Miriam M. Unterlass and Klaus Tauer

      Version of Record online: 23 SEP 2011 | DOI: 10.1002/macp.201100206

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      Images of poly[styrene-co-(styrene sulfonate)] particles from surfactant-free self-initiated emulsion copolymerization with different IS after dialysis: a) redispersed spheres (high IS, Na2SO4), b) redispersed splotchy particles (low IS, no salt), c) mixed morphologies in the solids after freeze drying (high IS, Na3PO4), d) cubes of Prussian Blue among copolymer particles after dialysis [high IS, K4Fe(CN)6].

    2. Red-Emitting Polymer Microspheres Containing Zinc Porphyrins (pages 2087–2093)

      Fei Wang, Kewei Ding and Feipeng Wu

      Version of Record online: 24 AUG 2011 | DOI: 10.1002/macp.201100188

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      Novel polymer microspheres containing zinc porphyrins are synthesized by one-step copolymerization with high yield. Because of the porphyrin assemblies, the polymer microspheres exhibit higher color purity and better monochromaticity of the red fluorescence in solution and in the solid state than ZnAOTPP monomer. This indicates that the polymer microspheres can be promising red-light-emitting materials.

    3. Tunable High-Molecular-Weight Anion-Exchange Membranes for Alkaline Fuel Cells (pages 2094–2102)

      Yanting Luo, Juchen Guo, Chunsheng Wang and Deryn Chu

      Version of Record online: 24 AUG 2011 | DOI: 10.1002/macp.201100218

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      Novel alkaline anion-exchange membranes (AAEMs) based on poly[(methyl methacrylate)-co-(butyl acrylate)-co-(vinylbenzyl chloride)] are fabricated and characterized. They possess tunable properties that facilitate balancing the mechanical properties and conductivity of the membrane. The obtained AAEMs demonstrate one of the best overall fuel cell performances including high power density and durability.

    4. Non-oxidative Thermal Degradation of Poly(glycidol), Poly(glycidol)-g-L-lactide, and Poly(glycidol)-g-glycolide (pages 2103–2113)

      Jeffrey L. Atkinson and Sergey Vyazovkin

      Version of Record online: 26 JUL 2011 | DOI: 10.1002/macp.201100243

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      Analysis of the reaction products and the kinetics of the thermal degradation of poly(glycidol) (PG) and its two derivatives, poly(glycidol)-g-L-lactide (PG-g-La) and poly(glycidol)-g-glycolide (PG-g-Gly), is performed. The results suggest that in the two-step degradation of the PG derivative, the first step is associated with decomposition of the pendant groups and the second is due to degradation of the PG backbone.

    5. Efficiency Increase of Poly(ethylene terephthalate-co-isosorbide terephthalate) Synthesis using Bimetallic Catalytic Systems (pages 2114–2120)

      Jean Christophe Bersot, Nicolas Jacquel, René Saint-Loup, Patrick Fuertes, Alain Rousseau, Jean Pierre Pascault, Roger Spitz, Françoise Fenouillot and Vincent Monteil

      Version of Record online: 1 AUG 2011 | DOI: 10.1002/macp.201100146

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      The combination of antimony oxide with a second nontoxic metal (Met2) (lithium, magnesium, or aluminium) leads to a higher efficiency in the catalyzed transesterification step in the synthesis of poly(ethylene terephthalate-co-isosorbide terephthalate). This allows the antimony content used in the synthesis to be decreased and coloration problems to be reduced.

    6. Thermally Curable Polyoxanorbornene by Ring Opening Metathesis Polymerization (pages 2121–2126)

      Mehmet Atilla Tasdelen and Hakan Durmaz

      Version of Record online: 19 AUG 2011 | DOI: 10.1002/macp.201100258

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      Synthesis and characterization of various polyoxanorbornenes with different molecular weights containing thermally curable benzoxazine units in the side chain via ring opening metathesis polymerization are reported. The thermally activated ROP of the polymeric precursors containing benzoxazine units are also investigated by DSC studies.

    7. New Alternating Copolymers of 3,6-Carbazoles and Dithienylbenzothiadiazoles: Synthesis, Characterization, and Application in Photovoltaics (pages 2127–2141)

      Nicolas Berton, Chiara Ottone, Vanessa Labet, Rémi de Bettignies, Séverine Bailly, André Grand, Christophe Morell, Saïd Sadki and Frédéric Chandezon

      Version of Record online: 25 AUG 2011 | DOI: 10.1002/macp.201100209

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      New 3,6-linked carbazole-based copolymers are studied for OPV use. The benzothiadiazole-containing low-bandgap polymer PCDTBT exhibits a photovoltaic effect over a wider range than high-bandgap PBTC when mixed with PCBM in BHJ solar cells, yielding correspondingly larger short-circuit current efficiency under standard simulated solar illumination.

    8. Template-Assisted Fabrication of Highly Ordered Interpenetrating Polymeric Donor/Acceptor Nanostructures for Photovoltaic Applications (pages 2142–2150)

      Niko Haberkorn, Sehee Kim, Ki-Se Kim, Michael Sommer, Mukundun Thelakkat, Byeong-Hyeok Sohn and Patrick Theato

      Version of Record online: 24 AUG 2011 | DOI: 10.1002/macp.201100269

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      The template-assisted fabrication of well-ordered interpenetrating donor/acceptor networks based on organic semiconductors is described. Complete embedding without aggregation or collapsing of semiconducting nanorod arrays is possible, making templating a versatile tool for the fabrication of well-ordered bulk heterojunction films with a large donor/acceptor interface on the nanometer scale for photovoltaic devices.

    9. Responsive Poly(acrylic acid) and Poly(N-isopropylacrylamide) Monoliths by High Internal Phase Emulsion (HIPE) Templating (pages 2151–2158)

      Sebastijan Kovačič, Karel Jeřabek and Peter Krajnc

      Version of Record online: 12 AUG 2011 | DOI: 10.1002/macp.201100229

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      High internal phase emulsions are used to prepare monoliths with polyacrylic components inside the cavities of a polystyrene skeleton. These materials exhibit responsive behavior in terms of temperature- or pH-dependent flow through the materials.

    10. Determination of Solubility Parameters for Organic Semiconductor Formulations (pages 2159–2165)

      Florian Machui, Steven Abbott, David Waller, Markus Koppe and Christoph J. Brabec

      Version of Record online: 19 AUG 2011 | DOI: 10.1002/macp.201100284

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      The applicability of Hansen solubility parameters in designing organic semiconductor ink formulations is analyzed by determining and predicting the solubility behavior of three different organic semiconductors. A large number of solvents are studied and temperature-dependent solubility is examined to enhance the practical relevance of this work.

    11. A Simple Scheme for Grafting an Ion-Imprinted Layer onto the Surface of Poly(propylene) Fibers (pages 2166–2172)

      Tongyi Li, Lei Wu, Shuixia Chen, Haichao Li and Xiuzhu Xu

      Version of Record online: 19 AUG 2011 | DOI: 10.1002/macp.201100195

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      Polyethylenimine-modified ion-imprinted fibers are prepared by first grafting a poly(glycidyl methacrylate) functional layer onto poly(propylene) fibers and then reacting with a Cu2+ imprinted layer through a covalent bond. With satisfying thermal stability and mechanical properties, the ion-imprinted fiber shows a high adsorption capacity and a high selectivity for Cu2+.

    12. Measurement Protocols for Reporting PEDOT Thin Film Conductivity and Optical Transmission: A Critical Survey (pages 2173–2180)

      Manrico Fabretto, Kamil Zuber, Carlos Jariego-Moncunill and Peter Murphy

      Version of Record online: 19 AUG 2011 | DOI: 10.1002/macp.201100303

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      Differences in the reported values of the electrical conductivity and optical switching range of PEDOT are analyzed. It is shown that these differences can partially be attributed to the measurement protocols used rather than to any intrinsic differences as a result of synthesis. An examination of various measurement protocols highlights the range of reported values that are possible.

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