نتایج جستجو برای: polycarbonate membrane
تعداد نتایج: 391370 فیلتر نتایج به سال:
The electrical properties of electrodeposited zinc‐copper‐telluride (ZnCuTe) nanowires embedded in polycarbonate track‐etch membrane (Whatman) having pore‐diameters of 200, 100 and 50nm have been studied and reported in this paper. Scanning electron microscopy (SEM) confirmed the formation of the nanowires of uniform diameter equal to the diameter of the templates used. ...
The introduction of programmes to detect bladder cancer in people exposed to carcinogens and the increased interest in the value of urinary cytology as a diagnostic procedure have resulted in the need for a satisfactory method of preparing specimens. Ideally, the method must be simple to perform and reproducible, and result in a high degree of cellular clarity and minimal cellular distortion. V...
This paper presents an effective technique to fabricate thermoplastic nanocomposites with high loading of well-dispersed single-walled carbon nanotubes (SWNTs). SWNT membranes were made from a multi-step dispersion and filtration method, and then impregnated with polycarbonate solution to make thermoplastic nanocomposites. High loading of nanotubes was achieved by controlling the viscosity of p...
Unstabilised bisphenol A polycarbonate samples were aged under UV radiation for periods of up to 3000 hours. The samples were then characterised using FTIR/ATR, GPC, SEM, microscopy, light transmission and colour changes. The changes in optical properties were related back to the changes in the polymer microstructure and composition. In this study, the molecular weight of polycarbonate was seen...
This study was designed to evaluate the suitability of a novel bioabsorbable material in treating bone defects. A poly(desaminotyrosyl-tyrosine-ethyl ester carbonate) (PDTE carbonate) membrane (thickness 0.2-0.3 mm) was implanted into the mandibular angle of 20 New Zealand White rabbits to cover a through-and-through defect (12 x 6 mm). In group 1, the defects were left unfilled but covered wit...
Membrane bioreactor-reverse osmosis process (MBR-RO) is widely applied in wastewater treatment, especially when high-quality treated water needed. Although MBR shows better performances the removal of pathogens than conventional activated sludge process, stable operation RO latter step MBR-RO depends on residual bacteria filtrate microfiltration membranes. Species and sizes found with 0.2 μm po...
A series of CoIII carboxylate based upon N,N,O,O-tetradentate Schiff base ligand framework have been prepared. X-ray diffraction analysis confirms that these Schiff base CoIII carboxylate are all monomeric species with a six-coordinated central Co in their solid structures. The activities and polycarbonate selectivity of these complexes toward the copolymerization of epoxide (cyclohexene oxide ...
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