Macromolecular Materials and Engineering

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Recently Published Articles

  1. 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

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    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.

  2. 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

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    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.

  3. 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

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    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.

  4. 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

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    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.

  5. 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

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    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.

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