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Synthesis, characterization and Study of the physical properties of some new silicone polymers
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This study involves the synthesis of a new class of silicon polymers, designated as P1-P7, derived from dichlorodimethylsilane (DCDMS) in combination with various organic compounds (Schiff bases prepared from different amines and appropriate aldehydes or ketones) [I-V] through condensation polymerization. The structures of all monomers and polymers were characterization by FTIR and 1HNMR spectroscopy (for some polymers). The results of thermogravimetric analysis (TGA) and differential scanning calorimetry DSC test show stable thermal behaviour. Polymers with a higher concentration of aromatic rings in their repeating structural units exhibited a higher temperature for weight loss, indicating increased thermal stability. Thermal measurements reflect the fact that all the polymers prepared in this study possess thermal stability, and the most thermally stable are the polymers that contain more phenyl rings. The inhibitory feature of the prepared polymers is studied through many tests, which include measuring the erosion rate through methods known as weight loss and scanning electron microscopy tests. In the weight loss method, the inhibiter gives good efficiency in protecting aluminium metal, to reach the inhibition efficiency to 83% using polymer P5 inhibitor with concentration of 0.15 in 0.1 M solution of NaOH. On the other hand, P4 it showed the lowest inhibition efficiency of 16.74% at a concentration of 0.05. Scanning electron microscopy (SEM) images showed that a high corrosion inhibition efficiency of the polymers in NaOH solution (0.1 M), while the metal surface under the corrosion containing the inhibitors showed lower corrosion than that which could be found on the same metal surface, that is located in a completely empty media of the barrier and also clearly showed the protective layer on the surface. Viscosity testing in dimethylsulfoxide solvent showed that the true viscosity increases three fold when the concentration increases from 0.1 to 0.7. The results also showed that copolymer P7 has a higher viscosity.

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Publication Date
Sun Mar 01 2015
Journal Name
Baghdad Science Journal
Study of the Toxic effect of new Cadmium ( II) complex [ CdL2]. 1/2H2O on GPT and ALP activity in some organs of female mice comparable with anitumor drug Cyclophosphamide (CP)
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Cadmium has been known to be harmful to human healthy , manily Via contaminated drinking water , food supplies , tobacco and industrial pollutant . The aim of this study was to determine the toxicity of new Cadmium (II) complex ( Bis[ 5- ( P- nitrophenyl ) – ? 4 – Phenyl- 1,2,4- triazole -3- dithiocarbamatohydrazide] cadmium (II) Hydra ( 0.5) and compare it with anticancer drug cyclophosphamide ( CP) in female albino mice . This complex causes to several alterations in Enzymatic activity of Glutamate Pyruvate Transaminase (GPT) and Alkaline Phosphatase (ALP ) in three organs after the treatment of mice with different doses of a new cadmium (II) complex ( 0.09 / 0.25ml , 0.18/ 0.5ml and 0.25mg /0.7 ml /30 gm of mous

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Publication Date
Fri Jun 01 2012
Journal Name
Journal Of Engineering
Effects of Functionalized Polyethylene and Styrene ButadIene Styrene Polymers on Performance Grade of Local Asphalt
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Rutting is one of the major distresses in pavement. The objective of this paper is to develop an improved asphalt binder grading system for Iraq based on the principal of Superpave system, and increasing performance grade of product asphalt binder in Iraq using polymers without raising the viscosity of the binder. Two types of polymers are used, Plastomers, Functionalized Polyethylene (PE) which is developed by asphalt research group in Wisconsin University in the USA, and Elastomers, Styrene Butadiene Styrene (SBS) with and without cross linker. Mastercurve are drown for these modified binders, Rolling thin film aged, to show effects on rheological properties at high temperature for complex modulus (G*) and phas

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Publication Date
Sun Dec 30 2018
Journal Name
Baghdad Science Journal
Spectroscopic Studies and Thermal Analysis of New Azo Dyes Ligands and their Complexes with some Transition of Metal Ions
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New Azo ligands HL1 [2-Hydroxy-3-((5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl)-1-naphth aldehyde] and HL2 [3-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)diazenyl)-2-hydroxy-1-naphthaldehyde] have been synthesized from reaction (2-hydroxy-1-naphthaldehyde) and (5-amino-1,3,4-thiadiazole-2-thiol) for HL1 and (4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) for HL2. Then, its metal ions complexes are synthesized with the general formula; [CrHL1Cl3(H2O)], [VOHL1(SO4)] [ML1Cl(H2O)] where M = Mn(II), Co(II), Ni(II) and Cu(II), and general formula; [Cr(L2)2 ]Cl and [M(L2)2] where M = VO(II), Mn(II), Co(II), Ni(II) and Cu(II) are reported. The ligands and their metal complexes are characterized by phisco- chemical spectroscopic

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Publication Date
Sat Aug 01 2015
Journal Name
Journal Of Sol-gel Science And Technology
Synthesis and spectroscopic properties of silica nanoparticles as scatter centers in random gain porous media
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Publication Date
Fri Feb 03 2023
Journal Name
Nano Hybrids And Composites
Synthesis and Characterization of Nanoparticles Extracted from <i>Catharanthus roseus</i> Plant
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The Catharanthus roseus plant was extracted and converted to nanoparticles in this work. The Soxhlet method extracted alkaloid compounds from the plant Catharanthus roseus and converted them to the nanoscale. Chitosan polymer was used as a linking material and converted to Chitosan nanoparticles using Sodium TriPolyPhosphate (STPP). The extracted alkaloids were linked with Chitosan nanoparticles CSNPs by maleic anhydride to get the final product (CSNPs- Linker- alkaloids). The synthesized (CSNPs- Linker- alkaloids) was characterized using SEM spectroscopy UV–Vis., Zeta Potential, and HPLC High-Performance Liquid Chromatography. Scanning electron microscope (SEM) analysis shows that the Chitosan nanoparticles (CSNPs) have small dim

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Publication Date
Wed Jun 01 2022
Journal Name
Iraqi Journal Of Physics
Synthesis and Characterization of Ternary BexZn1-xO Nano Thin Films prepared by Pulsed Laser Deposition Technique
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         Beryllium Zinc Oxide (BexZn1-xO) ternary nano thin films were deposited using the pulsed laser deposition (PLD) technique under a vacuum condition of 10-3 torr at room temperature on glass substrates with different films thicknesses, (300, 600 and 900 nm). UV-Vis spectra study found the optical band gap for Be0.2Zn0.8O to be  (3.42, 3.51 and 3.65 eV) for the (300, 600 and 900nm) film thicknesses, respectively which is larger than the value of zinc oxide ZnO (3.36eV) and smaller than that of beryllium oxide BeO (10.6eV). While the X-ray diffraction (XRD) pattern analysis of ZnO, BeO and Be 0.2 Zn 0.8 O powder and nano-thin films indicated a hexa

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Publication Date
Thu Feb 01 2018
Journal Name
Journal Of Pharmacy Research
Synthesis and antimicrobial evaluation of new-[2-amino-4- (4-chloro-/4-bromophenyl)-1,3-thiazole derivatives
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Publication Date
Sat Oct 01 2022
Journal Name
Journal Of Engineering
Evaluation of the Physical and Chemical Treatment of Wastewater for the Dairy Industry
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Dairy wastewater generally contains fats, lactose, whey proteins, and nutrients. Casein precipitation causes the effluent to decompose into a dark, strong-smelling sludge. Fluid waste contains soluble organic matter, suspended solids, and gaseous organic matter, which cause undesirable taste and smell, grant tone and turbidity, and advance eutrophication, which plays an essential role in increasing biological oxygen demand (BOD) in water. It also contains detergents and disinfecting agents from the rinses and washing processes, which increase the need for chemical oxygen (COD). One of the characteristics of dairy effluents is their relatively high temperature, high organic contents, and wide pH range, so the discharge of wastewater into

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Publication Date
Thu Apr 29 2010
Journal Name
Journal Of The First Specialized National Conference In Chemistry 29-30 April 2010 University Of Thi-qar College Of Science
Preparation and Characterization of Mixed ligand complexes of Lanthanum (III) with 8- hydroxyqinoline and some amino acids
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Publication Date
Sat Jul 25 2026
Journal Name
Journal Of Physical Education
Platform proposal impact in the development of some special physical abilities in the level of achievement of ran (1500) meters of the young players in athletics.
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