Macromolecular Materials and Engineering
Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Recently Published Articles
- Anisotropic Supports in Metallocene-Catalyzed Polymerizations: Templates to Obtain Polyolefin Fibers
Daejune Joe, Florian E. Golling, Kathrin Friedemann, Daniel Crespy, Markus Klapper and Klaus Müllen
Article first published online: 23 APR 2014 | DOI: 10.1002/mame.201300435
Polyethylene nanofibers are prepared by metallocene-catalyzed polymerization on anisotropic supports. The supports are fabricated by electrospinning functionalized polystyrene nanoparticles and subsequent loading with the catalyst. The diameter of the obtained fibers is controlled by the polymerization time.
- The Thermal Behavior of Polylactide with Different D-Lactide Content in the Presence of Dissolved CO2
Mohammadreza Nofar, Aboutaleb Ameli and Chul B. Park
Article first published online: 22 APR 2014 | DOI: 10.1002/mame.201300474
High D-lactide content PLA cannot crystallize even under high-pressure CO2. Crystallization rate of the other PLAs with medium and low D-lactide contents increases by increasing the amount of dissolved CO2 and by reducing the D-lactide contents. But their final crystallinity behaves differently under various CO2 pressures. As cooling rate increases, maximum achieved crystallinity appears at higher CO2 pressures.
- Flow-Induced Coalescence in Polydisperse Systems
Ivan Fortelný and Josef Jůza
Article first published online: 17 APR 2014 | DOI: 10.1002/mame.201400050
The theory of coalescence in polymer blends containing droplets polydisperse in size is derived. The dependence of coalescence efficiency on average droplet radius differs strongly from that for monodisperse systems commonly used for interpretation of experiments. It has a strong impact on description of the phase structure evolution in flowing polymer blends.
- Effect of Particle Size and Shape on the Reinforcing Efficiency of Nanoparticles in Polymer Nanocomposites
Hojjat Mahi Hassanabadi and Denis Rodrigue
Article first published online: 17 APR 2014 | DOI: 10.1002/mame.201300442
By rheological and mechanical analyses, the effect of five different nanoparticles, including clay nanocrystalline cellulose, multiwall carbon nanotube, talc, and CaCO3, on polymer dynamics in the melt and solid state is investigated. Furthermore, considering their effect on rheological and mechanical properties, the particles are compared based on a cost-to-performance ratio.
- Toward In Situ Compatibilization of Polyolefin Ternary Blends through Morphological Manipulations
Reza Khalili, Seyed Hassan Jafari, Mohammad Reza Saeb, Hossein Ali Khonakdar, Udo Wagenknecht and Gert Heinrich
Article first published online: 14 APR 2014 | DOI: 10.1002/mame.201300452
The compatibilizing action of PP and HDPE constituents in their corresponding 75/(25) ternary blends with PA6 is evaluated by varying the type of continuous phase and weight fraction in minority phase. Tensile and impact properties are traced to infer morphological transitions from partial encapsulation to matrix/shell/core type morphology.