نتایج جستجو برای: silane
تعداد نتایج: 2688 فیلتر نتایج به سال:
Particle-agglomerated films exhibit rough surfaces, which can be suitable for realization of ultra hydrophobicity. We fabricated particles and their deposits silica with organic functional groups (SiO:CH) by plasma polymerization organosilicon reactants including methyl vinyl groups. The trimethyl(vinyl)silane reactant showed a uniform deposition the plasma-polymerized SiO:CH in large area, whi...
Flexible Janus nanosheets of molecular scale thickness (3.5 nm) are massively fabricated by a sol-gel process of a self-assembled monolayer of an amphiphilic silane onto a template. Groups of both sides are tuneable, and thus performance of the nanosheets, for example, is pH responsive. As a flexible solid emulsifier, the desired species can be wrapped with an individual nanosheet, which is pH ...
Here, we report a method to use natural wood lauan as a template to fabricate superhydrophobic biomorphic copper on a carbon substrate (Cu/C). First, a carbon substrate with the microstructure of lauan was obtained by sintering lauan in an oxygen-free environment. A biomorphic Cu/C material was then obtained by immersing this carbon substrate into a Cu(NO3)2 solution and sintering. Finally, the...
Although the growth mechanism of the CVD of polysilicon from silane has been extensively studied for some years, the chemistry of the gas-solid interactions is still not fully understood. In particular, there has been very little consideration of possible bonding modes of homogeneous silane species to silicon surfaces. In fact, most models of silicon growth from silane assume a simple, single s...
Water-soluble, silane-functionalized ZnO nanocrystals were synthesized with improved colloidal stability, and their photostability was controlled for the selective detection of aldehydes.
In this paper we report an investigation on the linear and nonlinear properties of a non-classic push-pull molecule, based molecular design concept ‘donor-free’ chromophore. Herein terthiophene unit acts both as donor π-spacer group tris(trimethylsiloxy)silane substituent acceptor group. This latter can represent model fragment silica surface it has been compared with classic like nitro The chr...
The title compound, C(44)H(60)Si, was prepared as an inter-nal standard for diffusion-ordered NMR spectroscopy. The Si atom lies on a special position with site symmetry.
BACKGROUND No specific indications about the pre-treatment of indirect composite restorations is provided by the manufacturers of most self-adhesive resin cements. The potential effect of silane treatment to the bond strength of the complete tooth/indirect restoration complex is not available.The aim of this study was to determine the contribution of different surface treatments on microtensile...
OBJECTIVES In this in vitro study, the effect of various drying (surface reaction) times of a commercial silane, other than that recommended by the manufacturer (at least 5 min), on the bond strength between the resin composite and silica coated base and noble alloys was evaluated. METHODS A total of 112 disc specimens (9 mm diameter and 0.5 mm thickness) were cast out of two types of alloy d...
There is a great interest in electronic transitions in hydrogen-rich materials under extreme conditions. It has been recently suggested that the group IVa hydrides such as methane (CH(4)), silane (SiH(4)), and germane (GeH(4)) become metallic at far lower pressures than pure hydrogen at equivalent densities because the hydrogen is chemically compressed in group IVa hydride compounds. Here we re...
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