Materials Literature
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Many of the macroscopic properties of foams and emulsions are controlled by the mesoscopic properties of the thin films separating the bubbles or droplets. The properties of these films depend on contributions (1) from the adsorbed surface layers and (2) from the liquid that separates these adsorbed layers. To separat…
A high-performance gas barrier film has been prepared using a simple oxygen plasma treatment of an organic/inorganic hybrid sol-gel coat on a poly(ether sulfone) substrate. The gas barrier layer formed from the plasma treatment was an inorganic silicon oxide (SiO(x)) having a compositional gradient interface with the…
The process of biomineralization occurs in various natural organisms with astonishing ease by the interplay between polymers and mineralization but eludes a fundamental understanding. In addressing how specific polymers direct selection of mineral morphologies and their growth kinetics, we present a new model based on…
Abstract In order to develop PP (polypropylene)‐based blends with balanced toughness and rigidity, the poly‐blends of PP/PC (polycarbonate)/POE (ethylene–octene copolymer) were prepared by applying styrene–ethylene–propylene–styrene (SEPS) as the macromolecular compatibilizer. The compatibilizing effect was studied in…
Fire continues to be a worldwide problem. It claims thousands of lives and causes tens of billions of dollars in loss of property every year. In this 5th volume of Fire and Polymers, current fire-related problems are discussed and solutions delineated. This peer-reviewed volume is designed to be representative of the…
Facile synthesis of second-generation dendrons with an aldehyde, epoxy, or t-Boc group at the focal point and nine carboxylic acid groups at the periphery is reported. The scheme includes a coupling of the first-generation dendrons and a two-step, one-pot reaction that proceeds through a Boc deprotection and in situ c…
A method to vary locally the physical properties of a porous material is presented. A wet gel is first prepared following conventional sol−gel techniques. The pore walls are derivatized by adding to the gelling solution a silane carrying a polymerizable moiety such as trimethoxysilylpropyl. The solvent of the wet gel…
Abstract Polypropylene/(wood flour)/(kenaf fiber) hybrid composites were prepared in an internal mixer. Kenaf was considered as a fibrous filler and wood flour as a particulate filler. The lignocellulosic loading used was 50%. Dynamic mechanical thermal analysis properties such as storage modulus ( E ′), loss modulus…
Preface ix FIBER COMPOSITES. Influence of Fiber Orientation on the Mechanical Properties and Microstructure of C/C-SiC Composite Plates Produced by Wet Filament Winding Technique 3 Fabian Breede, Severin Hof mann, Enrico Klatt, and Sandrine Denis High-Temperature Interlaminar Tension Test Method Development for Cerami…
A relation between template properties and template performance has been established: template particles with a surface layer of cinnamic acid molecules, either adsorbed or covalently bonded, promote crystallization of cinnamic acid, while particles without such a layer do not. The BET surface area and dynamic light s…
Herein we present the synthesis and the use of salen copper complexes as flame retardants in TPU. Fire retardancy evaluated by mass loss calorimeter show that 10% loading in TPU decreases significantly the peak rate of heat released (pRHR). The diminution of pRHR depends of the structure of the salen copper complex. T…
The general effect of surface hydrophobicity/hydrophilicity on the aggregation of peptides is studied by simulations of oversaturated aqueous solutions of hydrophobic and hydrophilic amyloidogenic peptides. Peptide aggregation was studied in bulk solution, in solutions confined between hydrophobic boundaries (smooth p…
The present article will highlight two different approaches to obtaining phosphorus-modified epoxy materials which are expected to be qualified for high performance printed wiring boards (PWB). The first method involves the incorporation of novel non-reactive derivatives of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10…
By means of computer simulations, we study how droplets of hard, rodlike particles optimize their shape and internal structure under the influence of the osmotic compression caused by the presence of spherical particles that act as depletion agents. At sufficiently high osmotic pressures, the rods that make up the dro…
Fabrication of nano-sized objects is one of the most important issues in nanoscience and nanotechnology. Soft nanomaterials with flexible properties have been given much attention and can be obtained through bottom-up processing from functional molecules, where self-assembly based on supramolecular chemistry and desig…
The use of magnetic drug targeting (MDT) to selectively deliver chemotherapeutic drugs to tumor cells is a widely investigated approach; however, the notion of targeting tumor endothelial cells by this method is a fairly new concept. Positively-charged (cationic) liposomes have an extraordinarily high affinity for tum…
Abstract A nano‐composite coating was formed using nano‐ZnO as pigment in different concentrations, to a specially developed alkyd‐based waterborne coating. The nano‐ZnO modified composite coatings were applied on mild steel substrate by dipping. The dispersion of nano‐ZnO particles in coating system was investigated…
BACKGROUND: Gemcitabine (Gemc) is an efficient chemotherapeutic drug in various cancer types (e.g., pancreas) but has only limited effects on hormone-refractory prostate cancer (HRPCa). Since HRPCa cells are highly sensitive to even low doses of Gemc in vitro, the lack of clinical effects might be due to rapid degrada…
It has been well known that recoil loop openness is related to soft-phase presence in exchange-coupled hard-soft nanocomposite magnets. Our study on recoil loop openness of exchange-coupled nanocrystalline magnets (both single-phase and composite) using a micromagnetic finite-element method has revealed that the recoi…
A new system for measuring magnetic viscosity in bulk hard magnetic materials base on a pulsed field method is presented. After the magnetizing field pulse, the stray field of the sample, which is proportional to the magnetic moment, is measured with a compensated set of two Hall probes. The set of Hall probes is driv…