Macromolecular Materials and Engineering

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Recently Published Articles

  1. Reversibly Dispersible/Collectable Metal-Organic Frameworks Prepared by Grafting Thermally Responsive and Switchable Polymers

    Heyang Liu, He Zhu and Shiping Zhu

    Article first published online: 1 SEP 2014 | DOI: 10.1002/mame.201400251

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    A reversibly dispersible/collectable metal-organic framework (MOF) system is presented. This system is based on the modification of MOF by grafting thermally switchable polymers. The resulted MOF materials, without losing their original framework, can be readily dispersed in water at room temperature and be re-collected when heated. The dispersion/collection process is reversible.

  2. Poly(vinyl alcohol) Cryogel Formation Using Biocompatible Ice Nucleating Agents

    Yanjiao Jiang, Hazrat Hussain and Joerg Kressler

    Article first published online: 29 AUG 2014 | DOI: 10.1002/mame.201400229

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    To control the influence of supercooling on the preparation of poly(vinyl alcohol) (PVA) cryogel, various biocompatible ice nucleating agents, including, two fatty alcohols, and various amino acids are investigated for their ice nucleating efficiency in PVA aqueous solutions for the production of PVA cryogel at relatively higher freezing temperature.L-Aspartic acid is found to be the most effective ice nucleating agent that could nucleate ice in concentrated PVA aqueous solution at ∼−5 °C.

  3. Strategies for High Quality Injection Moulding of Polymer Nanopillars

    Rasmus H. Pedersen, Qian Xu, John M. Stormonth-Darling and Nikolaj Gadegaard

    Article first published online: 27 AUG 2014 | DOI: 10.1002/mame.201400134

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    We show tunable reproduction of polymer nanostructures by injection moulding. Using a novel fabrication method to produce a master with a gradient in pattern height we conduct detailed investigations of the injection moulding process of nanopillar structures. Material choice and moulding parameters lead to optimization and control of the final result.

  4. Melt Processing and Characterization of Bionanocomposites Made from Poly(butylene succinate) Bioplastic and Carbon Black

    Michael Snowdon, Amar Kumar Mohanty and Manjusri Misra

    Article first published online: 26 AUG 2014 | DOI: 10.1002/mame.201400088

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    Now that biopolymers have entered the industrial marketplace, new advancements in biobased nanocomposites are underway. Using poly(butylene succinate) (PBS) and low volume percentages of carbon black filler, a thermal and electrically conductive plastic with good particle dispersion and increased mechanical performance may be obtained compared to conventional PBS.

  5. Structure Development of Low-Density Polyethylenes During Film Blowing: A Real-Time Wide-Angle X-ray Diffraction Study

    Martin van Drongelen, Dario Cavallo, Luigi Balzano, Giuseppe Portale, Iakovos Vittorias, Wim Bras, Giovanni C. Alfonso and Gerrit W. M. Peters

    Article first published online: 22 AUG 2014 | DOI: 10.1002/mame.201400161

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    Structure development of low-density polyethylenes during film blowing: a real-time wide-angle X-ray diffraction study. Blown film extrusion was combined with in-situ wide-angle X-ray diffraction at a synchrotron radiation beam line. The structure evolution was examined in terms of crystallinity and molecular orientation along the extrusion direction for different processing conditions. Three grades with different molecular properties were examined.