Macromolecular Rapid Communications

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Recently Published Articles

  1. 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.

  2. 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.

  3. Water-Based Adhesives with Tailored Hydrophobic Association: Dilution Resistance and Improved Setting Behavior

    Alexander Dundua, Katharina Landfester and Andreas Taden

    Article first published online: 22 SEP 2014 | DOI: 10.1002/marc.201400391

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    Water-soluble model additives are employed to adjust the viscoelastic properties of hydrophobically modified alkali-soluble latexes. Response of the rheological and mechanical properties upon dilution with water is tailored and dilution resistant systems are obtained. General structure–property relationships are provided to improve the setting behavior of respective water-based adhesive systems.

  4. First Acyclic Diene Metathesis Polymerization Under Biphasic Conditions Using a Dicationic Ruthenium Alkylidene: Access to High-Molecular-Weight Polymers with Very Low Ruthenium Contamination

    Jing Zhao, Dongren Wang, Benjamin Autenrieth and Michael R. Buchmeiser

    Article first published online: 19 SEP 2014 | DOI: 10.1002/marc.201400413

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    The acyclic diene metathesis (ADMET) polymerization of polar dienes by the action of the dicationic ruthenium alkylidene [Ru(DMF)3(1,3-dimesitylimidazolin-2-ylidene)(CH-2-(2-PrO-C6H4)2+ 2BF4] under biphasic conditions using 1-butyl-2,3-dimethylimidazolium tetrafluoroborate and 1,2,4-trichlorobenzene allows for the high yield synthesis of high-molecular-weight polymers (inline image ≤ 40 000 g mol−1, yields ≤ 99%). Ru-contamination of the polymers without any additional purification is as low as 1.2 ppm.

  5. Masthead: Macromol. Rapid Commun. 18/2014

    Article first published online: 18 SEP 2014 | DOI: 10.1002/marc.201470063