Materials Literature
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Thermoplastic elastomers (TPEs) are known to exhibit a phase-separated morphology which depends on their chemical structure and processing. The design of novel TPEs with predefined properties which are also independent of the material thermal history has so far remained a challenge. The focus of this work is on the se…
Economic and environmental concerns have driven the development of biobased polymers and materials in recent years. The PHAs family was not the main focus of studies for decades, however, this class of polymers has been gaining scientific and industrial interest. The variety of polymers that make up the PHA family—mor…
Microfibrillated cellulose (MFC) was prepared by controlling the re-precipitation of cellulose prepared in the mixture form of NaOH/Urea solubilized microcrystalline cellulose (MCC) and starch. The cellulose re-precipitation was carried-out in an HCl bath, resulting in a MFC form having relatively lower crystallinity…
François Béguin opened the discussion of the paper by Yury Gogotsi: After vacuum treatment of the SiC-CDC at 700 °C, the specific surface area increases by around 1000 m2 g−1. You explain it by the removal of surface functional groups. However, the elemental analysis in table 1 shows almost the
Dynamic mechanical measurements were used to investigate the effect of small molecule additives on the order-to-disorder transitions (ODTs) of Pluronic, poly(ethylene oxide) (PEO)–poly(propylene oxide) (PPO)–PEO triblock copolymer surfactant melts. The small molecule additives contain multiple functional groups (carbo…
In this paper, we added CdSe/ZnS core/shell quantum dots (QDs) into anthracene-contained polymer. The photoluminescent (PL) characteristic of polymer/QD composite film could identify the energy transitions of anthracene-contained polymer and QDs. Furthermore, the electroluminescent (EL) characteristic of hybrid LED al…
First principles investigations, within the spin-polarized density functional theory, are performed to study energetic stability and electronic properties of point defects (vacancies and antisites) in PbSe and PbTe: bulk and nanowire (NW). Our results show that the energetic stability of these defects is ruled by rela…
In order to clarify controversial reports on the Fe-Re phase diagram, a new experimental investigation has been carried out. Three intermetallic phases have been evidenced, including the new report of the P phase found for the first time in a binary system. The phase relations involving the σ phase were established. I…
Silica microfiber wool was systematically functionalized in order to provide an extremely water repellent and oleophilic material. This was carried out using a two-step functionalization that was shown to be a highly effective method for generating an intense water repulsion and attraction for oil. A demonstration of…
Polyimide nanocomposites containing three different types of nanofillers were compared in terms of their thermal properties, morphology, and oxygen permeability. Organically modified hectorite clay (STN), functionalized hexadecylamine-graphene sheets, and an STN/hexadecylamine-graphene sheets complex were utilized as…
The excellent biodegradability, compatibility and versatile structural composition of polyhydroxyalkanotes (PHAs) have secured their significance for industrial applications. More importantly, these polymers can also play a critical role in biomedical applications such as a 3D scaffold for tissue engineering, bio-adhe…
Staphylococcus aureus is one of the most common nosocomial sources of soft-tissue and skin infections and has more recently become prevalent in the community setting as well. Since the use of penicillins to combat S. aureus infections in the 1940s, the bacterium has been notorious for developing resistances to antibio…
Nanotwinned metals have opened exciting avenues for the design of high strength and high ductility materials. In this work, we investigate crack propagation along coherent twin boundaries in nanotwinned metals using molecular dynamics. Our simulations reveal that alternating twin boundaries exhibit intrinsic brittlene…
This article reports the oxidation of Chitosan by using periodate and the characterization of the dialdehyde chitosan (DAC) generated by the reaction. Oxidised chitosan were further characterised by FTIR analysis, 1 HNMR and TGA. The morphological analyses of oxidized chitosan by SEM confirmed the non change of elonga…
A PSDCM-(I) crystal with phenyl as the electron donor in its molecular structure exhibits a large powder SHG intensity about 0.3 times that of OH1.
Mixing two nonconducting hydrogen-bonded liquids, each exhibiting a low dielectric relaxation strength, can result in a highly electrically absorbing fluid. This susceptibility amplification effect is demonstrated for mixtures of monohydroxy alcohols. Whereas in the pure liquids a tendency to form ringlike low-dipole…
In this work, a series of cationic microfibrillated cellulose (CMFC) were prepared by introducing quaternary amine groups, and the sorption of a model compound for bile salts, sodium cholate, in vitro was determined. Various variables, contact time, initial concentration of sodium cholate, and the presence of salts, w…
PURPOSE: Macromolecular prodrugs obtained by covalently conjugating small molecular drugs with polymeric carriers were proven to accomplish controlled and sustained release of the therapeutic agents in vitro and in vivo. Polyethylene glycol (PEG) has been extensively used due to its low toxicity, low immunogenicity an…
Using the raw powders synthesized via a modified coprecipitation method with the ethanol–water precipitant solvent and combined with various powder calcination temperatures, the ceramics were fabricated by dry pressing, vacuum sintering, and air annealing. The results showed that higher powder calcination temperature…
The dynamic compressive behaviors of ZrB 2 ‐based ceramic composites were investigated through the convenient and high‐temperature S plitting H opkinson P ressure B ars. The effects of strain rate on dynamic compressive strength, stress–strain relationship and fracture mechanisms were discussed in detail. Moreover, th…