Macromolecular Chemistry and Physics

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Best of Macros 2017 is now online. Click here to read about the selected articles and their authors.

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  1. Light-Switchable Supramolecular Self-Assembly of Soft Colloids

    Ping Wang, Qiaofeng Yang, Zhipeng Ye, Chuanzhuang Zhao and Jingfa Yang

    Version of Record online: 25 JUL 2017 | DOI: 10.1002/macp.201700280

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    Self-assembly of microgels is an efficient strategy of constructing intelligent material but reversible self-assembly of microgels remains a challenge. Utilizing the light-responsive host–guest interaction between an azobenzene-nanogel and an α-cyclodextrin microgel, this manuscript proposes a facile method to realize the assembly/disassembly of soft colloids with visible/UV light. Moreover, the as-prepared colloid cluster shows responsiveness to competitive host molecules and temperature.

  2. A Generalized Packing Model for Bulk Crystalline Regioregular Poly(3-alkylthiophenes) with Extended Side Chains

    Anne Bohle, Dmytro Dudenko, Nils Koenen, Daniel Sebastiani, Sybille Allard, Ullrich Scherf, Hans Wolfgang Spiess and Michael Ryan Hansen

    Version of Record online: 20 JUL 2017 | DOI: 10.1002/macp.201700266

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    The crystalline form I of regioregular poly(3-alkylthiophenes) with extended side chains is shown to crystallize in the space group P21/c from a combination of solid-state NMR experiments and condensed-phase nucleus-independent chemical shift calculations.

  3. Condensed Mode Cooling for Ethylene Polymerization: Part IV. The Effect of Temperature in the Presence of Induced Condensing Agents

    Fabiana N. Andrade and Timothy F. L. McKenna

    Version of Record online: 20 JUL 2017 | DOI: 10.1002/macp.201700248

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    The effect of adding chemically inert alkanes to the reactor during gas phase polymerization of ethylene has a number of complex, often contradictory effects. One of these is that, at constant pressure of ethylene, increasing the reactor temperature in the presence of an induced condensing agent leads to a lower observable reaction rate.

  4. One-Step Spontaneous Formation of Dual Wrinkling on Uniform-Sized Microparticles Induced by Surface

    Jinsol Im, Dongik Yoo, Jihoon Kim, Sukeun Yoon and Kuk Young Cho

    Version of Record online: 19 JUL 2017 | DOI: 10.1002/macp.201700152

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    Dual wrinkling structure on the surface of uniform-sized biodegradable microparticles is prepared by using blends of hydrophobic polymer and amphiphilic block copolymer and by introducing dimple-forming organic phase change materials. Both labyrinthine and hexagonal dimple structures are spontaneously formed from the conventional microparticle fabrication procedure of the solvent-emulsion evaporation method.

  5. Conjugated Side Chain Tuning Effect of Indacenodithieno[3,2-b]thiophene and Fluoro-Benzothiadiazole-Based Regioregular Copolymers for High-Performance Organic Field-Effect Transistors

    Henry Opoku, Ji Young Lee, Keun Cho, Benjamin Nketia-Yawson, Bogyu Lim and Yong-Young Noh

    Version of Record online: 19 JUL 2017 | DOI: 10.1002/macp.201700225

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    Two regioregular indacenodithieno[3,2-b]thiophene and fluoro-benzothiadiazole-based donor–acceptor type copolymers with different conjugated side chains of hexyl-phenyl or hexyl-thienyl are synthesized to study the effects of the side chain on performance of organic field-effect transistors (OFETs). Top-gate/bottom-contact OFETs with a hexyl-thienyl substituted polymer show higher hole mobility up to 0.211 than 0.086 cm2 V−1 s−1 for the polymer with hexyl-phenyl side chains.

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