Macromolecular Materials and Engineering
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Materials Science Weekly Newsletter
Recently Published Articles
- Thermally Reduced Graphite Oxide and Mechanochemically Functionalized Graphene as Functional Fillers for Epoxy Nanocomposites
Katrin Tschoppe, Fabian Beckert, Michaela Beckert and Rolf Mülhaupt
Article first published online: 20 OCT 2014 | DOI: 10.1002/mame.201400245
This study is on tailoring of functional carbon fillers for carbon/epoxy composites in order to improve mechanical and electrical properties. In addition to the thermal reduction of graphite oxide, the mechanochemical functionalization of multilayer graphene by ball milling of graphite under nitrogen and carbon dioxide pressure is investigated. This process is cost efficient and offers considerable potential for industrial applications.
- Reactive Blending of Nitrile Butadiene Rubber and In situ Synthesized Thermoplastic Polyurethane-Urea: Novel Preparation Method and Characterization
Muhammad Tahir, Klaus Werner Stöckelhuber, Nasir Mahmood, Hartmut Komber and Gert Heinrich
Article first published online: 20 OCT 2014 | DOI: 10.1002/mame.201400298
Reactive blending of nitrile butadiene rubber and thermoplastic polyurethane-urea, synthesized in-situ via the prepolymer route, is realized. The 1H NMR analysis of solvent extracted thermoplastic polyurethane-urea phase of the blends shows upto 93% conversion of the diamine i.e. Bisaniline-M. The blend vulcanizates show a remarkable improvement in tensile properties, abrasion resistance and tear strength.
- In Situ Synthesis of Polymer Embedded Silver Nanoparticles via Photopolymerization
Rabia Nazar, Silvia Ronchetti, Ignazio Roppolo, Marco Sangermano and Roberta M. Bongiovanni
Article first published online: 7 OCT 2014 | DOI: 10.1002/mame.201400204
A highly versatile UV technology is being opted to cure polymer films embedding metal nanoparticles coated by polypyrrole. Simultaneous reduction of silver ions and photoinduced oxidation of pyrrole to polypyrrole is investigated. In the presence of the UV-curable monomer, multiphasic films are obtained; depending on the silver salt and pyrrole content, a decrease in resistivity is observed.
- Fibers Mechanically Similar to Sheep Wool Obtained by Wet Spinning of Gelatin and Optional Plasticizers
Philipp R. Stoessel, Renzo A. Raso, Tim Kaufmann, Robert N. Grass and Wendelin J. Stark
Article first published online: 7 OCT 2014 | DOI: 10.1002/mame.201400240
Gelatin processing into biofibers is achieved by spinning a protein precipitate into ethanol combined with continuous fiber drawing. This allows the production of a continuous porous protein filament, which does not have the limitation of small staple fiber length as, e.g., in wool. Furthermore, the application of plasticizers demonstrates the versatility of the proposed method.
- 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
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.