Molecular Design, Graft Polymerization and Performance Evaluation of Radiation Curable Flame Retardant Monomers Derived from Phosphorus-Nitrogen Systems.
North Carolina State University Theses Textile Engineering, Chemistry and Science.
Materials Literature
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Templating calcium carbonate drug delivery carriers based on polyphosphoester copolymers
The design of drug delivery systems (DDS) often requires biodegradable and biocompatible materials that allow safe retention and controlled release of the drug. In this respect, CaCO3 particles are appropriate drug carriers that have excellent properties such as low density, high specific surface areas and porosity fo…
Determining the Mechanism of Low Temperature Graphene Growth
Abstract : A single layer graphene electrode has been successfully grown by the chemical vapour deposition (CVD) method using a liquid chlorobenzene carbon source trapped in a PMMA polymer matrix at a growth temperature of 450 deg C. Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and Ultraviolet-Visible (U…
Physics Of Conductivity Noise In Graphene
This thesis describes the conductivity fluctuations or noise measurements in graphenebased field effect transistors. The main motivation was to study the effect of disorder on the electronic transport in graphene. In chapter 4, we report the noise measurements in graphene field effect (GraFET) transistors with varying…
frulhns v0.4.2
frulhns v0.4.2 This R package distributes all electrophysiological spike data, statistical analysis, and traced neurons associated with the open access publication: A bidirectional circuit switch reroutes pheromone signals in male and female brains Cell, 155(7):1610-1623, 19 December 2013 doi:10.1016/j.cell.2013.11.02…
Nature of itineracy in CoV$_2$O$_4$: A first principles study
Inspired by recent experiments, we have theoretically explored the nature of itineracy in CoV$_2$O$_4$ under pressure and investigated, using first principles density functional theory calculations, if it has any magnetic and orbital ordering. Our calculations indicate that there could be two possible routes to obtain…
Copper NMR study of CuCrO2
We have carried out 63,65Cu NMR spectra measurements in magnetic field up to about 15.5 T on single crystal of a multiferroic triangular-lattice antiferromagnet CuCrO2. The measurements were performed for perpendicular and parallel orientation of the magnetic field with respect to the c-axis of the crystal, and the de…
THERMAL AND MECHANICAL PROPERTIES OF AN IRON BASED AMORPHOUS ALLOY
The Fe-Si-B is a well known system of technical importance used for various applications due to promising magnetic properties and corrosion resistant. Melt spun ribbons (MSRs) of 50 m thickness of Fe77.5Si13.3B9.2 alloy were produced by melt spinning technique. Master alloys were prepared by using 3-4 N pure metals. T…
1,10-Phenanthroline, 1-oxide
[1891-19-6] C12H8N2O (MW 196.21) InChI = 1S/C12H8N2O/c15-14-8-2-4-10-6-5-9-3-1-7-13-11(9)12(10)14/h1-8H InChIKey = OFEFUDKSXOZQFL-UHFFFAOYSA-N (functionalization at the 2-position of the phenanthroline ring: cyanation3 and halogenation4, 5; methylation6) Alternate Names: 1,10-phenanthroline-N-oxide. Physical Data: mp…
Results on field measurements in a flat pole magnet with the current caring sheets
The results of measurements with a gradient magnet arranged with the help of current sheets are represented and analyzed
Tris(1,1,1,3,3,3-hexafluoro-2-propyl)phosphite
[66470-81-3] C9H3F18O3P (MW 532.06) InChI = 1S/C9H3F18O3P/c10-4(11,12)1(5(13,14)15)28-31(29-2(6(16,17)18)7(19,20)21)30-3(8(22,23)24)9(25,26)27/h1-3H InChIKey = MJOVEPJSFHDSOJ-UHFFFAOYSA-N Physical Data: bp 130 °C; d 1.69 g mL−1. Solubility: no data available. Form Supplied in: colorless, clear liquid. Purification: di…
Resonant x-ray scattering from chiral materials: α-quartz, α-berlinite, and tellurium
We study the resonant x-ray scattering (RXS) at Si K, Al K and Te Ll-edges from chiral materials, ?-quartz, ?-berlinite, and tellurium. For the forbidden reflections (001) and (00), we deduce the scattering matrix for the El El event by summing up the local scattering matrices. The oscillation terms proportional to co…
Deep-level transient spectroscopy characterization of In(Ga)As quantum dots fabricated using Bi as a surfactant
In recent years, deep-level transient spectroscopy (DLTS) has been used to evaluate the electrical characteristics of quantum dots (QDs) for evaluating not only defects around QDs, but also the capture and emission properties of carriers in QDs. In this report, the electrical characteristics of 10-layer QDs grown usin…
A new chiral phase of BiFeO3evidenced from resonant x-ray Bragg diffraction
Results that support a new chiral phase in the only multiferroic material known above room temperature have been obtained by a resonant x-ray Bragg diffraction experiment, with the incoming x-ray beam tuned near the Fe K-edge (7.1135 keV), performed in its ferroelectric phase. The R3c forbidden reflection (0,0,9) H wa…
Improvement of Carbon Nanotubes Dispersivity in Poly(Styrene/Methacrylate) Composites by Chemical Functionalization
In this work composite materials of improved properties based on styrene and methacrylate copolymers with differently functionalized multiwalled carbon nanotubes (CNT) were prepared. In order to obtain a fine dispersion and to enhance the interfacial interaction of CNT with surrounding polimer matrix a chemical modifi…
Resonance of graphene nanoribbons doped with nitrogen and boron: a molecular dynamics study
Based on its enticing properties, graphene has been envisioned with applications in the area of electronics, photonics, sensors, bio-applications and others. To facilitate various applications, doping has been frequently used to manipulate the properties of graphene. Despite a number of studies conducted on doped grap…
Characteristics of electron emission from cross-sectional surface of porous Si layer
Electrons are emitted from the cross-sectional surface of a porous Si layer. The measurement of electron emission from the cross-sectional surface of the porous Si layer on a glass substrate by applying positive and negative DC voltage and AC voltage is demonstrated. The electron emission device is formed of a layered…
Existence of covalent-like bonding in Pd40Cu20Ge40 metallic glass observed by anomalous x-ray scattering
To elucidate the local structure of Pd 40 Cu 20 Ge 40 metallic glass having curious thermodynamic properties of a low melting point and an extremely small ratio of glass transition-and melting temperatures, anomalous x-ray scattering experiments were performed close to the Pd, Cu, and Ge K edges. The results were anal…
Synthesis of a novel class of mixed-type surfmers and their properties in water
Abstract Three new mixed-type surfmers were synthesized using poly(propylene oxide)/poly(ethylene oxide)/poly(propylene oxide) (PPO-PEO-PPO) having terminal tertiary amine group as the basic material: (1) PPO-PEO-PPO with a carboxyl group on one end (MTA); (2) PPO-PEO-PPO with a quaternary ammonium group on one end (J…
Effect of electrolyte solutions on sunflower oil water interfacial tension in presence of surfactant
The basic ingredients of cosmetics are usually an oil phase, water phase and a surfactant. Anionic surfactants are usually used in cosmetics as they have lower CMC values. But due to presence of an oily phase the surfactant used should have antifungal or antibacterial properties also. So CTAB was used as surfactant du…