Macromolecular Materials and Engineering
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Recently Published Articles
- Mechanically Strengthened Polyamide 66 Nanofibers Bundles via Compositing With Polyvinyl Alcohol
Shasha Wu, Guoqiang Zheng, Xiaoyang Guan, Xingru Yan, Jiang Guo, Kun Dai, Chuntai Liu, Changyu Shen and Zhanhu Guo
Article first published online: 16 OCT 2015 | DOI: 10.1002/mame.201500220
Mechanically enhanced electrospun PA66 nanofiber bundles with a highest tensile strength of 126.4 MPa are successfully manufactured through compositing with PVA after treating the bundles with 5.0 wt% PVA. The superb interface adhesion is responsible for the enhanced mechanical properties of the composite bundles.
- Quenching Phase Separation by Vapor Deposition Polymerization
Ran Tao and Mitchell Anthamatten
Article first published online: 15 OCT 2015 | DOI: 10.1002/mame.201500280
A template-free method is applied to fabricate continuous-phase, porous polymer films by simultaneous phase separation during vapor deposition polymerization. Experiments show that the morphology and porosity of the as-deposited polymer thin films depend on deposition rate, cross-linker density, the mass transfer mobilities of phase-separating species, and the interaction energies between species.
- Flame Retardancy of Polymers: The Role of Specific Reactions in the Condensed Phase
Bernhard Schartel, Birgit Perret, Bettina Dittrich, Michael Ciesielski, Johannes Krämer, Patrick Müller, Volker Altstädt, Lin Zang and Manfred Döring
Article first published online: 9 OCT 2015 | DOI: 10.1002/mame.201500250
Specific reactions control charring in burning polymers. In a preceding step, the reactants are provided in competition to releasing volatiles. Such a simple two-step model enables a detailed description as well as a general overview of the flame-retardancy mechanisms in the condensed phase. A comprehensive case study of seven phosphorous flame retardants in two epoxy resins underlines the model.
- Melt Processed PCL/PEG Scaffold With Discrete Pore Size Gradient for Selective Cellular Infiltration
Roberto Scaffaro, Francesco Lopresti, Luigi Botta, Salvatrice Rigogliuso and Giulio Ghersi
Article first published online: 7 OCT 2015 | DOI: 10.1002/mame.201500289
In this work, the authors developed a three-layered PCL scaffold through a melt mixing–compression molding–particle leaching process. The pore size is well controlled by NaCl particles dimension. The mechanical properties and cell migration capability of the scaffold is significantly impacted by the pore size.
- High Strength Self-Healing Magnetic Elastomers With Shape Memory Effect
Xian Qi Feng, Gong Zheng Zhang, Quan Ming Bai, Hao Yang Jiang, Bo Xu and Huan Jun Li
Article first published online: 6 OCT 2015 | DOI: 10.1002/mame.201500226
A novel shape memory magnetic elastomer with high mechanical strength consisting of conventional polymer and Fe3O4 nanoparticles is reported. The elastomer exhibits superparamagnetism and superior self-healing performance. Under the irradiation of IR light, the crack can be healed automatically without the application of external force.