نتایج جستجو برای: vapor phase polymerization
تعداد نتایج: 657173 فیلتر نتایج به سال:
We report on the universal fabrication of Janus microparticles from a wide variety of organic and inorganic components. The Janus particle fabrication described in this study details the synthesis of the highly cross-linked polymer nanocoatings on top of the partially embedded particles via plasma enhanced chemical vapor deposition. Here we conducted the plasma enhanced polymerization of differ...
A pulsed plasma enhanced chemical vapor deposition (PECVD) reactor is used for the preparation of thin polyacetylene films. A theoretical model based on the mass transport characteristics of the reactor is developed in order to correlate with experimentally obtained spatial deposition profiles for the acetylene plasma polymer film deposited within the cylindrical reactor. Utilizing a free radic...
In this paper, we propose a Monte Carlo simulation model for the initial growth of polymer films by considering only monomer surface diffusion in the vapor-deposition polymerization process. In the model, monomers are deposited randomly on a two-dimensional square lattice with periodic boundary conditions and are allowed to diffuse with nearest neighbor hops. Whenever monomers meet, they stop d...
In moist convection, atmospheric motions transport water vapor from the earth’s surface to the regions where condensation occurs. This transport is associated with three other aspects of convection: the latent heat transport, the expansion work performed by water vapor, and the irreversible entropy production due to diffusion of water vapor and phase changes. An analysis of the thermodynamic tr...
Histamine stimulation of swine carotid artery induces both contraction and actin polymerization. The importance of stimulus-induced actin polymerization is not known. Tyrosine phosphorylation of the scaffolding protein paxillin is thought to be an important regulator of actin polymerization. Noise temperature, hysteresivity, and phase angle are rheological measures of the fluidity of a tissue, ...
UNLABELLED The potential adverse health effects of PM2.5 (particulate matter with an aerodynamic diameter<2.5 μm) and vapor samples from three communities that neighbor railyards, Commerce (CM), Long Beach (LB), and San Bernardino (SB), were assessed by determination of chemical reactivities attributed to the induction of oxidative stress by air pollutants. The assays used were dithiothreitol (...
Abstract Gas to liquid (GTL) process involves heterogeneous catalytic chemical reactions that convert synthesis gas to hydrocarbons and water vapor. A three phase reactor, called Low temperature Fischer-Tropsch (LTFT) is commonly applied for GTL process. In this reactor the gaseous phase includes the synthesis gas, light hydrocarbons and water vapor, the liquid phase is a mixture of the h...
Monolayers of a polymerizable phospholipid on water have been studied both before and after polymerization. Before polymerization, the phase diagram is established by isotherm measurements and optical microscopy (epifluorescence and direct observation between crossed polarizer and analyzer). This allows us to bring into evidence a coexistence region between a condensed and an expanded phase, ab...
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