Macromolecular Materials and Engineering
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Recently Published Articles
- Thermal Stability of Sulfonated Poly(Ether Ether Ketone) Films: on the Role of Protodesulfonation
Beata T. Koziara, Emiel J. Kappert, Wojciech Ogieglo, Kitty Nijmeijer, Mark A. Hempenius and Nieck E. Benes
Article first published online: 27 AUG 2015 | DOI: 10.1002/mame.201500075
Exposing thin films of sulfonated poly(ether ether ketone) to temperatures as low as 160 °C causes partial desulfonation, followed by further degradation at higher temperatures. By exchanging the sulfonate proton for a sodium ion, SPEEK films are thermally stable up to temperatures exceeding 200 °C.
- On the Routines of Wild-Type Silk Fibroin Processing Toward Silk-Inspired Materials: A Review
Vadim Volkov, Ana V. Ferreira and Artur Cavaco-Paulo
Article first published online: 27 AUG 2015 | DOI: 10.1002/mame.201500179
A vast piece of literature, describing various methods for silk fibroin lab-scale processing, is currently found. Due to the fact, different reviews, based on several grouping strategies (i.e., silk-based hydrogels, silk-derived devices for controlled release, etc.) exist. The purpose of the present survey is to unite variety of physical, chemical, and enzymatic approaches of fibroin processing, regardless of their final product destination.
- One-Step In Situ Synthesis of Polyamide Microcapsules With Inorganic Payload and Their Transformation into Responsive Thermoplastic Composite Materials
Nadya Dencheva, Zlatan Denchev, Senentxu Lanceros-Méndez and Tiberio Ezquerra Sanz
Article first published online: 27 AUG 2015 | DOI: 10.1002/mame.201500194
For the first time, well-dispersed solid loads are incorporated into highly porous polyamide 6 microcapsules (PAMC) by suspension anionic polymerization of ϵ-caprolactam in the presence of the respective nano- or microsized inorganic particles. The PAMC prepared with diameters of 25–80 μm entrap up to 30 wt% of load. Their melt-processing produces high-strength thermoplastic composites with tailored electrical and dielectric properties.
- Diffuse-In/Condense-Out Behavior of Glycerol Induces Formation of Composite Membranes with Uniform Pores
Zheng-Hui Wang, Wei Cheng, Cai-Hong Liu, Jun Ma, Wen-Juan Zhang and Ji Li
Article first published online: 27 AUG 2015 | DOI: 10.1002/mame.201500224
A novel method for preparing polymer membranes with uniform pores is demonstrated. Based on the diffuse-in/condense-out behavior of glycerol, the self-assembly of the template molecules and the precipitation of the polymer molecules is subtly combined together. This leads to the formation of composite membrane consisting of porous substrate and surface layer bearing uniform pores.
- Surface-Initiated Atom Transfer Radical Polymerization (SI-ATRP) From Graphene Oxide: Effect of Functionalized Graphene Sheet (FGS) on the Synthesis and Material Properties of PMMA Nanocomposites
Nutenki Rajender and Kattimuttathu I. Suresh
Article first published online: 24 AUG 2015 | DOI: 10.1002/mame.201500256
In this study, the effect of functionalized graphene sheets (FGS) synthesized by two methods, namely acrylation of graphene oxide (GO) and esterification of GO, on the material properties of PMMA nanocomposites has been investigated. The surface properties of the graphene–PMMA nanocomposites have been reported for the first time.