Macromolecular Materials and Engineering

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Recently Published Articles

  1. Cationic Aerosol Photopolymerization

    Ertan Akgün, Alex Muntean, Jürgen Hubbuch, Michael Wörner and Marco Sangermano

    Article first published online: 29 SEP 2014 | DOI: 10.1002/mame.201400211

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    Photoinitiated polymerization in aerosols is employed for the preparation of spherical polymer particles via cationic polymerization. Crosslinked polymer spheres with a high gel content are obtained by processing vinyl ether and epoxy monomers via aerosol-photopolymerization technique, which exhibits great potential for the development of multifunctional materials.

  2. Altering the Trigger-Behavior of Programmed Shape Memory Natural Rubber (SMNR) by Solvent Vapor

    Dominik Quitmann, Michael Dibolik, Frank Katzenberg and Joerg C. Tiller

    Article first published online: 12 SEP 2014 | DOI: 10.1002/mame.201400224

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    The trigger-behavior of a programmed SMNR is significantly changed by treating the constrained sample with solvent vapor. This solvent-induced athermal alteration of the trigger-temperature is a new way to change the properties of a shape memory polymer after programming. The here introduced evaluation method of the trigger-curve by the first derivative allows clearer insights in the trigger-behavior.

  3. Solid-State Properties and Controlled Release of Ranitidine Hydrochloride from Tailored Oxidised Cellulose Beads

    Jani Trygg, Emrah Yildir, Ruzica Kolakovic, Niklas Sandler and Pedro Fardim

    Article first published online: 10 SEP 2014 | DOI: 10.1002/mame.201400175

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    Oxidised cellulose beads were studied as a drug delivery systems at simulated gastrointestinal track. Spectrometric and calorimetric measurements showed that the drug was solidified in amorphous form and the release of the model drug was pH independent, providing biocompatible polymer matrix for fast and controlled drug release.

  4. Facile Synthesis of Hydroxyl-Terminated Oligoethylenes

    Robert S. A. Meyer, Julia S. Scholtyssek and Gerrit A. Luinstra

    Article first published online: 10 SEP 2014 | DOI: 10.1002/mame.201400193

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    An efficient one-pot two-step route to hydroxyl-terminated oligoethylenes is described. 2,6-bis[1-(2,6-dichlorophenyl-imino)ethylene] iron dichloride/MAO catalysis produces aluminum long chain alkyls in a nearly Coordinative Chain Transfer Polymerization. The alkyls are converted to hydroxyl-terminated PE by air and hydrolysis. Oxidation efficiency is higher for lower molecular weight alkyls.

  5. Evidences of Transesterification, Chain Branching and Cross-Linking in a Biopolyester Commercial Blend upon Reaction with Dicumyl Peroxide in the Melt

    Francesca Signori, Alessia Boggioni, Maria Cristina Righetti, Consuelo Escrig Rondán, Simona Bronco and Francesco Ciardelli

    Article first published online: 5 SEP 2014 | DOI: 10.1002/mame.201400187

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    The thermo-mechanical, rheological and structural features of the BASF Ecovio®T2280, based on PLA and PBAT, were rationalized after processing in the melt, in the presence of low (0–0.2 wt.-%) amount of DCP. The reported strategy is economically balanced, easy, reliable and effective for tuning material properties, since standard equipment and no complex purification steps were applied.

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