Macromolecular Materials and Engineering
Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Materials Science Weekly Newsletter
Recently Published Articles
- Influence of External Tension on the Structure and Properties of Melt-Spun PAN Precursor Fibers during Thermal Oxidation
Shuping Liu, Keqing Han, Lei Chen, Ying Zheng, Muhuo Yu, Jiaqi Li and Zhao Yang
Article first published online: 22 MAY 2015 | DOI: 10.1002/mame.201500104
During stabilization stage, the structure and properties of melt-spun PAN precursor fibers undergo a series physical and chemical changes formed infusible ladder structure. External tension mainly influenced on the chemical and crystal structures, carbon yield and physical properties. When external tension was 0.56 cN · dtex−1, pre-oxidized melt-spun fibers had excellently comprehensive properties.
- Shear-Induced Reinforcement Effect in Polymer/Fumed Silica Nanocomposites
Xun Chen and Margaret J. Sobkowicz
Article first published online: 21 MAY 2015 | DOI: 10.1002/mame.201500082
The work describes unusual network formation in nancomposites with fractal nanofillers under steady shear. Our results show that this shear-induced structure persists for long times after shearing event. This could have important implications for processing nanocomposites with improved mechanical properties.
- All-Dry Fabrication of Poly(methacrylic acid)-Based Membranes with Controlled Dissolution Behavior
Scott Seidel, Christopher Chu Cheong, Philip Kwong and Malancha Gupta
Article first published online: 15 MAY 2015 | DOI: 10.1002/mame.201500050
Porous poly(methacrylic acid)-based membranes are produced by chemical vapor deposition and thermal annealing. The chemical functionality of the membranes is tailored in order to tune the dissolution behavior in aqueous media from pH-dependent dissolution to full insolubility.
- Alginate–Hydroxyapatite Bone Scaffolds with Isotropic or Anisotropic Pore Structure: Material Properties and Biological Behavior
Davide Porrelli, Andrea Travan, Gianluca Turco, Eleonora Marsich, Massimiliano Borgogna, Sergio Paoletti and Ivan Donati
Article first published online: 13 MAY 2015 | DOI: 10.1002/mame.201500055
Alginate-hydroxyapatite scaffolds have been studied in order to evaluate the effect of the morphology on mechanical and biological properties. Anisotropic scaffolds have been obtained by applying the Ice Segregation Induced Self Assembly process, while isotropic scaffolds have been prepared by a freeze-drying technique.
- Regenerated Cellulose Fibers Prepared from Wheat Straw with Different Solvents
Jing-Huan Chen, Ying Guan, Kun Wang, Feng Xu and Run-Cang Sun
Article first published online: 8 MAY 2015 | DOI: 10.1002/mame.201500066
Biodegradability-regenerated cellulose fibers are manufactured from renewable wheat straw resources through environmentally friendly processes with [Amim]Cl, [Bmim]Cl, [Emim]Ac, DMAc/ LiCl, and NMMO as solvents. The obtained fibers have good thermal stability, and the morphology and mechanical strength of the fibers are highly depended on the type of solvents. This study proposes an alternative resource for the manufacture of regenerated fibers.