synthesis of polymers containing stable aminoxyl radicals

... element; evaluated the ability of polymers on separating each of the rare earth metal ions on the ion exchange column Main contents of dissertation - Synthesis polymers containing suitable funtional ... Objectives of the dissertation Successfully synthesis polymers containing suitable funtional groups to seperate the light rare earth element (La, Nd, Pr, and Ce); evaluted the efficiency of polymers ... minutes, 30% of monomer, 8% of crosslinker (in monomer), 1% of initiator, 0,3% of Span 80 at 300 rpm and ¼ of the phase ratio monomer/oil +The optimal condition for the modification of P[AM-co-VSA]

Ngày tải lên: 09/01/2020, 15:30

... (TG-DTA) in flowing atmosphere of N2 The general way of the thermal decomposition of cyanido complexes is characterized by leaving of N -donor ligands and then decomposition of all cyanido groups in ... ± SDs of three independent assays. 2.1.7 Determination of apoptotic potential of C1 and C2 In the present study, to test whether the mechanism of antiproliferative and cytotoxic activity of C1 ... effect of C1 and C2 on the morphology of HeLa, HT29, and C6 cells The effect of C1 and C2 on the morphology of HeLa, HT29, and C6 cells was visualized (Figure 7). Trang 10Figure 6 Inhibition of recombinant

Ngày tải lên: 12/01/2022, 23:36

... Rutledge Submitted to the Faculty of the College of Arts and Sciences of American University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy In Chemistry AMERICAN ... observation of carbon nanotubes it was of the MWNT type The discovery of SWNTs followed less than two years later The diameter of a carbon nanotube is of nanometer size and length of micrometer ... SEM Image of Aligned PC, FI€TS - s5 s1 ng nu mg 75 SEM Image of Aligned PCL FIbeTs G5 HH ng ng nếp 75 SEM Image of Aligned PCL FIbers 0 G HHgnH ngnt 76 SEM Image of the Edges of Aligned

Ngày tải lên: 14/11/2014, 12:32

... group of the ketoprofen molecule interacted with the polymer, leading to the disruption of the carbonxylic acid dimer of the crystalline ketoprofen Figure 4 TEM images of the nanoparticles containing: ... distribution of nanoparticles containing: (a) 10% (w/w) ketoprofen and 90% (w/w) Eudragit E100 and (b) 10% (w/w) ketoprofen and 90% (w/w) Eudragit RS Figure 7 XRD patterns of the nanoparticles containing: ... vibration of the carbonyl moiety of ester groups could be identified for both the materials at 1732 cm 1 For the nanoparticles containing ketoprofen, Eudragit E100 and Eudragit RS, the position of the

Ngày tải lên: 16/12/2017, 04:55

... Scheme 6 Synthesis of thiazoles (25), (26), and (27) Trang 7Page 7 of 14Abdelriheem et al Chemistry Central Journal (2017) 11:53 Scheme 7 Synthesis of 1,3,4-thiadiazoles (31a–d) Scheme 8 Synthesis of ... and (12b) Trang 5Page 5 of 14Abdelriheem et al Chemistry Central Journal (2017) 11:53 Scheme 4 Synthesis of thieno[2,3-b]pyridines (15a–c) and (16) Scheme 5 Synthesis of pyridine derivatives ... (10b) Method A Dropwise addition of a solution of the appro-priate diazonium salt of heterocyclic amines (8a) and (8b) (5 mmol) to a stirred mixture of sodium salt of (2) (1.25 g, 5  mmol), sodium

Ngày tải lên: 29/05/2020, 15:10

... than one mode of interaction In addition, we made a lot of efforts in producing macro-porous polymer sheet (frit) used for SPE, a small part of the project The mechanical property of the frit is ... Chi Minh City with the title “Synthesis of silica-based reverse-phase material possessing octadecyl groups (C18) and polymer-based strong cation-exchange material containing sulfonate groups as ... densities comparable or even higher than those of commercially available materials in the local market The production costs are also competitive In the case of cation exchange materials we are able

Ngày tải lên: 23/01/2021, 10:01

... Breathing of central bonds 336 In-plane vibration of phenyl-C-phenyl 423 Out-of-plane vibrations of phenyl-C-phenyl 524, 561 Ring skeletal vibration of radical orientation 724, 913 Out-of-plane ... thefinal stage of the synthesis in order to adjust the pH of the solution, thereby enhancing the growth and formation of nanorods[14] The as-prepared colloidal solution contained a mixture of spheres, ... concentrations of seed and base relative to that of silver ion concentration are vital in the seed mediated synthesis in determining the aspect ratio of anisotropic nanostructures The number of nucleation

Ngày tải lên: 04/02/2021, 12:36

... Breathing of central bonds 336 In-plane vibration of phenyl-C-phenyl 423 Out-of-plane vibrations of phenyl-C-phenyl 524, 561 Ring skeletal vibration of radical orientation 724, 913 Out-of-plane ... thefinal stage of the synthesis in order to adjust the pH of the solution, thereby enhancing the growth and formation of nanorods[14] The as-prepared colloidal solution contained a mixture of spheres, ... concentrations of seed and base relative to that of silver ion concentration are vital in the seed mediated synthesis in determining the aspect ratio of anisotropic nanostructures The number of nucleation

Ngày tải lên: 17/03/2021, 20:24

... presence of soft donor atoms in the macrocyclic system enhanced the selective extraction for soft metal ions such as silver(I) and mercury(II).24−26 Several papers related to the synthesis of phthalocyanines ... character-ization of a series of metal-free phthalocyanines and metallophthalocyanines containing 18- and 21-membered macrocycles with mixed donor atoms The effects of varying ring sizes of the macrocycle ... result of D2h symmetry.39,40 The resolution of the split of the Q band decreases with increasing wavelength and the presence of aggregated phthalocyanine species in solution.41−44 In the case of

Ngày tải lên: 12/01/2022, 23:41

... vibration of OH group), 3105 (strength vibration of NH group), 2917-2850 (strength vibration of SP3 CH), 1585, 1488 (strength vibration of C=C aromatic), 1465 (bending vibration of CH2); 1H NMR ... vibration of OH group), 3150 (strength vibration of NH group), 2930-2860 (strength vibration of SP3 CH), 1590, 1495 (strength vibration of C = C aromatic), 1475 (bending vibration of CH2); 1H ... vibration of OH group), 3180 (strength vibration of NH group), 2950-2840 (strength vibration of SP3 CH), 1595, 1500 (strength vibration of C=C aromatic), 1470 (bending vibration of CH2); 1H NMR

Ngày tải lên: 13/01/2022, 00:28

... aza222-based polymers Future research could focus on the synthesis of Eu 2+ -containing aza222-based polymers and the evaluation of their luminescence properties.To enhance the yield of the intermediate ... 0.11 (15:1 2.3 1 H- and 13 C-NMR Spectra of 2.4 and 2.6–2.11 Synthesis of Azacryptand Ligands for Luminescence Studies ofIntroductionThe unique stability of half-filled 4f orbitals allows europium ... added dropwise to a stirred mixture of K2CO3.The synthesis involved mixing 7.80 g (56.4 mmol) of a compound with 8.56 g (56.0 mmol) of methyl bromoacetate in 130 mL of acetone, followed by stirring

Ngày tải lên: 22/10/2022, 22:17

... without isolation of the prepolymers produced during the first-step polym-erization of iBEA or a mixture of iBEA and IBoA (See Fig. 1 for the accurate sequence structures of the block copolymers) Therefore, ... (1.6 mg), AMVN (3.5 mg), and DPDT (4.1 mg) in 1.5 g of anisole in a glass tube, was added 1.36 g of iBEA or a mixture of 0.95 g of iBEA and 0.62 g of IBoA The solution was degassed by a freeze–thaw ... freeze–thaw technique three times, and then N2 was Fig 1 Syntheses of random and block copolymers by TERP method Table 1 Synthesis of block copolymers by TERP Polymerization conditions: [AMVN]/[AIBN] = 1.4/1.0

Ngày tải lên: 24/11/2022, 17:37

... Hypothetical mechanism for the formation of 1a The synthesis of symmetrical bis-anilides 1a-like has previously been reported It consists of treatment of diethyl esters of the malonic acids and anilines ... Docking results of 100 independent runs for title and reference compounds *Total number of clusters † Number of distinct conformational clusters found out of 100 runs / number of multi-member ... have shown effectiveness, the rapid emergence of resistant variants, often cross-resistant to the members of a given class, limits the efficacy of existing antiretroviral drugs Therefore, it

Ngày tải lên: 24/11/2022, 17:54

... evaporation of fossil fuels Trang 6Overview of some oxides containing Ni C2 02 4N'+O, >4Ni*+ 2 O2 Trang 7Overview of some oxides containing Ni Trang 8Overview of some oxides containing Ni ... presence of the single crystal of NiO Trang 24Synthesis of nanoscale nickel oxide 2 Affecting of pH to the gel Ni#-PVA: ¢ pH: an important parameter in material synthesis In solution Trang 25Synthesis ... precipitation of metal as hydroxide => PVA Is a source of fuel. Trang 26Synthesis of nanoscale nickel oxide 3 Affecting of the molar ratio of Ni#/PVA ¢ Changing the molar ration of Ni#*/PVA

Ngày tải lên: 09/03/2025, 21:32

... for the synthesis of vitamin C,Beata A Wolucka1and David Communi2 1 Laboratory of Mycobacterial Biochemistry, Pasteur Institute of Brussels, Institute of Public Health, Belgium 2 Institute of Interdisciplinary ... crucial physiologic processes, including: biosynthesis of colla-gen and other hydroxyproline⁄ hydroxylysine-containing proteins⁄ peptides; synthesis of secondary metabolites, hormones and cytokines ... characterization of l-gulonolactone oxidase from chicken kidney microsomes Biochemistry 21, 5076– 5082 14 Loewus FA (1999) Biosynthesis and metabolism of ascorbic acid in plants and of analogs of ascorbic

Ngày tải lên: 07/03/2014, 12:20

... biosynthesis of glycosaminoglycan in mammals and of cell wall polysaccharides in plants Given the importance of these glycans to some organisms, the development of a system for production of ... production of UDP-GlcA and UDP-Xyl via conversion of a large precursor pool of UDP-Glc into the derivative molecules Here, we report the generation of yeast strains capable of producing large amounts of ... usefulness of this yeast system for the synthesis of glycans Furthermore, we observed that overexpression of AtUGD1 caused a reduction in the UDP-d-glucose pool, whereas coexpression of AtUXS3

Ngày tải lên: 07/03/2014, 12:20

... there will be very few of them Professor S Ya.Frenke1, Head of the Department of Anisotropic Polymer Systems of the Instatute of Macromolecular Compounds, Russian Academy of Sciences St.Petersbourg, ... chemistry of polymers is established In this case the author successfully avoids the shadow of Hodel’s theorem of insufficiency and gives rigorous methods of single and double regularization of incorrect ... THERMODYNAMICS OF SYSTEMS CONTAINING FLEXIBLE-CHAIN POLYMERS Scientific edition by Professor Sergei Ya Frenkel Translated by Sergei L Shmakov and Dmitri N 'Ifichinin THERMODYNAMICS OF SYSTEMS CONTAINING...

Ngày tải lên: 17/03/2014, 15:00

... They evaluated a variety of commercially available polymers, amorphous polymers of various molecular weights They also studied linear, weakly associative polymers composed of tri-alkyltin fluoride, ... binary mixture of β-D-maltose octaacetate and CO2 Copolymers of tetrafluoroethylene (TFE) and vinyl acetate (VAc) exhibited lower miscibility pressures than either of the homopolymers, probably ... stereoregularity favors dissolution of polymers in CO2 which is able to maximize the entropy of mixing between CO2 and polymers. 74-76 To dissolve the compounds into CO2, a large amount of cosolvent was introduced...

Ngày tải lên: 13/11/2014, 10:49

... Mechanism of Lipase-Catalyzed Polymerization of Cyclic Lactones Scheme 2.5 Production of PHAs Scheme 2.6 Representative Members of PHAs Scheme 2.7 Structure of Poly(3HB-co-3HV) Scheme 4.1 Synthesis of ... 6.2.1 Synthesis of 2-Oxepane-1,5-dione (OPD) 98 6.2.2 Synthesis of poly(2-Oxepane-1,5-dione)-diol (POPD) 98 6.2.3 Synthesis of poly(ester-urethane)s (PCTOPD)s containing hyperbranched ... wt% of sirolimus Figure 6.11 Compression curve for stent from PCTOPD-27 with the thickness of 0.22 mm and out diameter of 3.45 mm x LIST OF TABLES Table 1.1 Comparison of the properties of SMPs...

Ngày tải lên: 11/09/2015, 09:58