Macromolecular Rapid Communications

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Recently Published Articles

  1. Alkylphenyl Substituted Naphthodithiophene: A New Building Unit with Conjugated Side Chains for Semiconducting Materials

    Shaowei Shi, Keli Shi, Rui Qu, Zupan Mao, Hanlin Wang, Gui Yu, Xiaoyu Li, Yongfang Li and Haiqiao Wang

    Article first published online: 23 SEP 2014 | DOI: 10.1002/marc.201400403

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    A versatile 2-D conjugated polymer PNDTP-DPP, which contains alkylphenyl substituted naphthodithiophene as the donor unit, is synthesized and characterized. Investigation of polymer solar cells and organic field-effect transistors demonstrates a promising power conversion efficiency (PCE) of 4.11% and a high hole mobility of up to 0.86 cm2 V–1 s–1.

  2. Poly(isobutylene) Nanoparticles via Cationic Polymerization in Nonaqueous Emulsions

    Thomas Schuster, Florian E. Golling, Joseph W. Krumpfer, Manfred Wagener, Robert Graf, Abdulhamid A. Alsaygh, Markus Klapper and Klaus Müllen

    Article first published online: 23 SEP 2014 | DOI: 10.1002/marc.201400401

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    Poly(isobutylene) (PIB) nanoparticles are prepared in nonaqueous fluorinated emulsions. The required inert emulsifier for the oil-in-perfluoroalkane system is synthesized. The emulsifier is applied for the heterogeneous cationic polymerization of isobutylene yielding PIB number-average molecular weights (inline image) of 27 000 g mol−1. For inline image > 20 000 g mol−1, the particles are shape-persistent at room temperature and ≈100 nm in diameter.

  3. Highly Active ppm Level Organic Copper Catalyzed Photo-Induced ICAR ATRP of Methyl Methacrylate

    Xiaowu Jiang, Jian Wu, Lifen Zhang, Zhenping Cheng and Xiulin Zhu

    Article first published online: 23 SEP 2014 | DOI: 10.1002/marc.201400393

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    Highly active organic copper catalyzed photo-induced polymerization of methyl methacrylate (MMA) by ICAR (initiators for continuous activator regeneration) atom transfer radical polymerization (ATRP) with ppm level catalyst concentration is conducted successfully. Moreover, the obtained poly(methyl methacrylate)s (PMMAs) have narrow molecular weight distributions and high end functionality.

  4. Mechanically Tailored Agarose Hydrogels through Molecular Alloying with β-Sheet Polysaccharides

    Aurelien Forget, Raphaelle-Anne Pique, Vincent Ahmadi, Steffen Lüdeke and V. Prasad Shastri

    Article first published online: 22 SEP 2014 | DOI: 10.1002/marc.201400353

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    Hydrogels with tunable mechanical properties are of major importance for studying cell biology in a tri-dimensional environment. The present work describes an alternative to chemical crosslinking through blending of two polysaccharides of different secondary structures. Through control of the β-sheet distribution and overall content, stiffness, topography, and fiber architecture of the resulting hydrogel can be tailored.

  5. Utilizing Stretch-Tunable Thermochromic Elastomeric Opal Films as Novel Reversible Switchable Photonic Materials

    Christian G. Schäfer, Christina Lederle, Kristina Zentel, Bernd Stühn and Markus Gallei

    Article first published online: 22 SEP 2014 | DOI: 10.1002/marc.201400421

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    A facile approach for the preparation of novel thermoresponsive spherical particle architectures as starting material for photonic bandgap materials is reported. By taking advantage of the melt-shear organization process and subsequent spatial UV-induced crosslinking strategies, elastomeric poly(diethylene glycol methyl­ether methacrylate)-based opal films are produced and investigated with regard to their excellent thermochromic properties.