liquid solution crystal phase separation
thermodynamics of systems containing flexible - chain polymers - v.j. klenin
Ngày tải lên :
17/03/2014, 15:00
... with phase separation or mentioned it only in its relation to fractionation A need has, therefore, arisen to look into the questions of liquid- liquid phase separation (including multiphase separation) ... level of particles (structures) of the new phase Therefore, despite of the distinguishing nature of phase separation (eg., liquid- liquid or liquid- crystal) , the system remains heterogeneous for ... Liquid( Solution) -Crystal Phase Separation 753 753 6.1 Conditions of phase equilibrium 6.2 Phase analysis of the system poly(viny1alcohol) water 758 6.3 Mixed types of phase separation...
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Báo cáo hóa học: "Nanophotothermolysis of Poly-(vinyl) Alcohol Capped Silver Particles" docx
Ngày tải lên :
22/06/2014, 01:20
... which is expected to be due to the change in the crystallite size of the PVA capped silver particles before and after laser irradiation The mean crystallite diameter was calculated (using Scherrer’s ... excitation damping of the surface charge However the exact mechanism is still under investigation The phase of the NPs has been investigated by X-ray diffraction technique As shown in Fig 3, resultant ... borohydride and mM of trisodium citrate was added to the above beaker under vigorous stirring This solution was used as the reference colloid Then PVA capped samples were prepared by inserting wt%...
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Gradual phase and morphology transformation of Fe3O4nanoparticles to a - FeOOH nanorods in alcohol/water mediain the presence of surfactant F127
Ngày tải lên :
19/03/2014, 16:48
... Fe(II)Fe(III) intermediate [15] as pH of the solution rose to 11 The Fe(II)Fe(III) intermediate was a black precipitate suspended steadily in solution When the solution was aged in air, a color change ... only phase When the volume ratio of alcohol to water is set to 1:1 (sample b), peaks of both Fe3O4 and a-FeOOH appear in XRD pattern, as shown in Fig 1b It reveals the coexistence of two phases ... Fig 1b It reveals the coexistence of two phases in the product From the above results, a gradual phase transformation from Fe3O4 to a-FeOOH can be seen with increasing volume ratios of alcohol/water...
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Báo cáo "Thermomechanical characteristics of rigid poly(vinyl chloride) crosslinked by a peroxide in the presence of trimethylolpropane trimethacrylate " pdf
Ngày tải lên :
03/04/2014, 15:20
... network of crystallites (8.6%), which act as physical crosslinks, and melt over a wide temperature range starting at about 110 oC About Tg, softening depends on the melting of these crystallites, ... respectively Dry blends are prepared in a laboratory scale Fielder mixer All components (except liquid peroxide and TMPTMA) are placed in the mixer when temperature of 50oC is reached They are ... sample preparation The PVC used was the K60 PVC suspension resin EVIPOL SH6030 containing 8.6% crystallnity, from EVC (the United Kingdom) The processing aid Paraloid K120N, the lubricants waxes...
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Báo cáo hóa học: " Synthesis of silicalite-poly(furfuryl alcohol) composite membranes for oxygen enrichment from air" docx
Ngày tải lên :
20/06/2014, 23:20
... Preparation of silicalite nanocrystals Silicalite nanocrystals were synthesized according to the previously published procedures [15] In a typical synthesis, silicalite nanocrystals were synthesized ... synthesis from a clear solution with a molar composition of TPAOH:4.8 SiO2:44 H2O The synthesis solution was prepared in a 250-mL polypropylene bottle First, 20 g of M TPAOH solution was added dropwise ... vigorous stirring Strong magnetic stirring was maintained for h The solution was then heated in an oven at 80°C for to days for crystallization, resulting in a milky silicalite suspension The solid...
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Báo cáo hóa học: " Solvothermal synthesis of uniform bismuth nanospheres using poly(N-vinyl-2-pyrrolidone) as a reducing agent" pptx
Ngày tải lên :
21/06/2014, 06:20
... 0.5 mmol Bi(NO3)3·5H2O was dissolved in 12.5 mL of 0.1 mol/L mannitol solution, then 7.5 mL NH ·H O (5 mol/L) was added to the solution slowly with vigorously stirring After stirring for about 15 ... complexes (Bi III -mannitol), which were formed in ammonia solution In this study, it was found that there was no black product precipitated from the solution in the absence of PVP under identical experiment ... solvothermal growth of single-crystalline bismuth nanowires Nanotechnology 2008, 19:115602 Cao S, Guo C, Wang Y, Miao J, Zhang Z, Liu Q: Template-catalyst-free growth of single crystalline bismuth nanorods...
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Water Quality Modeling
Ngày tải lên :
23/09/2012, 16:02
... The physical size of the grids or elements and the time step for the solution must be selected to ensure that the mathematical solutions are stable and converge rapidly In this instance, the grid ... averaging over time for a numerical solution In other words, it is assumed that the concentration of the water quality parameter is constant for the time step in the solution The validity of this assumption ... calibration variable Volatilization refers to the changing of a substance from a liquid to gaseous state at the liquid interface The process is a function of Henry's Law, transfer coefficients...
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Báo cáo y học: "Determinants of improvement in quality of life of alcohol-dependent patients during an inpatient withdrawal programme"
Ngày tải lên :
03/11/2012, 10:52
... 41) Several factors could explain this great improvement in QoL: cessation of alcohol intake, resolution of withdrawal syndrome, resocialisation of patients through various meetings and other...
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Watershed
Ngày tải lên :
06/11/2012, 15:30
... of the crash faded, replaced by an eerie silence disturbed only by the faint sizzling of leaking liquids on hot engine components A small flicker of flame licked briefly at the wreckage, and then...
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Phân lập Promoter của Gene mã hóa cho enzyme cinamyl alcohol dehydrogenase
Ngày tải lên :
09/11/2012, 16:13
... Thnh phn phn ng ghộp ni nh sau: Bng 2.10 Thnh phn phn ng ghộp ni Thnh phn STT Th tớch DNA Salt solution 1l H20 kh ion 3,5l Vector pENTR 0,5 - 4l 1l Tng th tớch 6l Hn hp phn ng c nhit phũng...
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Phân lập Promoter của Gen mã hóa cho enzyme cinnamyl alcohol Dehydrogenase (Cad) và thiết kế vector chuyển Gen mang đoạn gen mã hóa cho Enzyme cinnamoyl CoA reductase (CCR) từ cây bạch đàn Uro
Ngày tải lên :
12/11/2012, 18:01
... Thnh phn phn ng ghộp ni nh sau: Bng 2.10 Thnh phn phn ng ghộp ni Thnh phn STT Th tớch DNA Salt solution 1l H20 kh ion 3,5l Vector pENTR 0,5 - 4l 1l Tng th tớch 6l Hn hp phn ng c nhit phũng...
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