نتایج جستجو برای: hexamethyldisilazane
تعداد نتایج: 107 فیلتر نتایج به سال:
In this paper, an ultra-scratch-resistant, hydrophobic and transparent coating was fabricated by the sol–gel method using (3-Glycidyloxypropyl) triethoxysilane (GPTES) curing agents. When silanol condensated, ring-opening reaction of epoxy groups also took place, which formed a double-cross-linked network (Si–O–Si R3N). This structure restricted molecule chains from being twisted or dislocated,...
Introduction Sample preparation is a critical step in scanning electron microscopy (SEM) imaging. This is especially true for biological samples because of charge build-up and sensitivity to vacuum and electron beam damage. In terms of ultrastructure imaging, a variety of advancements in detectors and approaches have improved biological imaging such that fewer steps are required for sample prep...
Trimethylsilylation of chitin was studied in detail to establish a reliable method, and the properties of the resulting product were elucidated. Chitin was successfully trimethylsilylated with a mixture of hexamethyldisilazane and trimethylsilyl chloride in pyridine. Compared to alpha-chitin, beta-chitin was much more reactive and advantageous as a starting material to prepare fully substituted...
Many copper water lines for municipal drinking water in Santa Fe, New Mexico USA, have developed pinhole leaks. The pitting matches the description of Type I pitting of copper, which has historically been attributed to water chemistry and to contaminants on the copper tubing surface. However, more recent studies attribute copper pitting to microbial induced corrosion (MIC). In order to test for...
Plasma damage and metal ion penetration are critical issues for porous low-dielectric-constant (low-k) materials used in the back-end-of-line interconnects. This study proposed a novel process with in-situ repairing plasma-induced capping barrier low-k by Hexamethyldisilazane (HDMS) plasma treatment. For plasma-damaged material, its surface hydrophilic state was transformed to hydrophobic HDMS ...
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