نور ضياء جعفر الموسوي

Six semi-IPN hydrogels (N1–N6) were synthesized by redox polymerization with different molar ratios of 2-(dimethylamino)ethyl methacrylate (DMAEMA) and sodium alginate. Methylene-bisacrylamide acted as a crosslinker for DMAEMA, and calcium chloride was used as a crosslinking agent for sodium alginate. The synthesized semi-IPN hydrogels are characterized by swelling ratio, scanning electron microscopy (SEM), BET, thermal gravimetric analysis (TGA), and differential scanning calor. The adsorption capacities of the prepared hydrogel polymers for the removal of Congo red dye from their aqueous solutions were studied at an initial concentration of 700 ppm. N3 and N4 hydrogels exhibited the highest adsorption capacities. The optimum pH and temperature were found to be 7 and 65 °C, respectively, resulting in adsorption capacities of 1365 mg/g and 1328 mg/g, with adsorption percentages of 97.53% and 94.857% for N3 and N4, respectively. The adsorption behavior of both hydrogel adsorbents followed Langmuir's model. It exhibited pseudo-second-order kinetics during the adsorption of CR dye, referring to the adsorption of CR on N3 and N4 adsorbents as chemisorption. The thermodynamic parameters have been calculated, and they refer to endothermic, randomness, and spontaneous adsorption. Desorption experiments were also performed, and NaOH was identified as the most effective eluent for CR dye recovery. Keywords: hydrogel, Semi-IPN, DEMAEMA, sodium alginate, adsorption, congo red

Six new semi-IPN hydrogels using 2-acrylamido-methylpropane-1-sulfonic acid (AMPS) and Gelatin at different ratios through redox polymerization were prepared. Methylene-bisacrylamide and glutaraldehyde were used as the crosslinking agents for AMPS and Gelatin, respectively. The hydrogels’ swelling ratios and surface morphologies were analyzed using SEM for characterization. Porosity and specific surface area using the Brunauer–Emmett–Teller technique. DSC and Tg were also used for the thermal analysis of the prepared hydrogels, which show trans-glass temperature (Tg) higher than their raw materials AMPS and Gelatin. The prepared hydrogels were used to eliminate the cationic dye MB from the water-based solutions with an initial concentration of 600 ppm. The study discovered that the N9 and N10 hydrogels were extremely effective at removing a certain dye from aqueous solutions with an optimum pH level of 11 and an optimum temperature of 65°C. Both N9 and N10 achieved high removal efficiencies, reaching equilibrium at 90 min, whereas the other hydrogels required 120 min. N9 performed slightly better at 1078.919 mg/g and N10 at 1057.404 mg/g. The adsorption behavior of the two hydrogels followed the Langmuir model. The hydrogels exhibited pseudo-second-order kinetics. The thermodynamic study cleared that the adsorption of MB dye was endothermic and spontaneous. Results also showed that the adsorption of dyes with hydrogels N9 and N10 is chemisorption in nature. Desorption studies were conducted using 0.1 M HCl and NaOH. HCl was found to be the best eluent for dye recovery.

This work presents syntheses of six new Schiff base compounds from Ampicillin, p-hydroxyl Benzaldehyde reacted with (pentanol, hexanol, and heptanol) to produce (4-pentloxy, 4- hexaloxy, and 4- hepteloxy) Benzaldehyde, and compounds (phydroxy, p- chloro, p-nitro) Benzaldehyde used to produce Schiff base compounds. The prepared compounds have been identified using (FT-IR and H1-NMR) techniques. The microscopic phases were determined using a polarized light microscope (POM), and the thermal properties of the transition temperatures for these compounds were measured using a differential scanning calorimeter (DSC). All compounds' melting points, colors, and yields were detected. Then the liquid crystalline behavior was studied, which showed that the compounds gave liquid crystalline properties and determined whether the compounds gave the nematic phase or the smectic phase.

The research involves preparation of seven new compounds of chalcone derivatives and their heterocyclic rings derived from 2- amino Thiazole by the reaction of 2- amino Thiazole with 2-hydroxy benzaldehyde (salisaldehyde) in ethanol and hydrochloric acid to prepare azo compound(A), then compound (A) reacted with acetophenone derivatives (p-bromo, p-chloro and p-hydroxy acetophenone) to Prepare chalcone derivatives (H1-H3) .Also the work includes preparing of seven-membered heterocyclic rings through two consecutive steps , The first step includes the preparation of Schiff base compound (S). The second step includes the preparation of the oxazepine derivatives (Z1,Z2) through the cyclic closure of (Schiff base compound (S) with the (maleic, phthalic) anhydrides respectively. All compounds were investigated with (FT-IR, H1NMR,13CNMR) techniques. The physical properties and the antibacterial activity study were also studied for all the prepared compounds and showed good results.

Two series of compounds resulting from the reaction of alkoxy benzaldehyde with alkoxy amoxicillin were prepared. first series, five compounds were prepared by fixing alkoxy benzaldehyde with carbon atoms (6) with (butaoxy, pentaoxy, hexaoxy,heptaoxy, octakoxy) Amoxicillin, while second series, four compounds were also prepared by fixing alkoxy Amoxicillin with carbon atoms (6) with (butaoxy, pentaoxy, heptaoxy, octakoxy) benzaldehyde, and the necessary measurements were taken to verify the resulting compounds, such as (FTIR), (HNMR), and measurements Regarding the determination of liquid crystalline compounds by polarized light microscopy (POM), it was found that the presence of (nematic and smectic) phases in the case of cooling is in addition to the isotropic phase.

palm bark has been investigated as economic easily obtained and eco-friendly adsorbents to removal Brilliant green dye in Batch experiments. The belongings of contact time, preliminary dye concentration, heat, besides function of pH in solution were estimated. Extreme adsorption aptitude was obtained at pH 9.The adsorption isotherms were evaluation by obeying Langmuir and Freondlich adsorption model with correlation coefficients R2(0.995-0.925)and(0.976-0.995) at four different temperatures respectively. In addition thermodynamic factors like energy ∆G, ∆H, plus ∆S of adsorption have been deliberate .The results in this study indicated that palm bark is adsorbate effective for the BG adsorption in aqueous solution.

المشاركة كمحكم علمي في منافسات الاولمبياد العلمي لطلبة الجامعات العربية لاربع سنوات متتالية علما ان مدة الاولمبياد تمتد على مدى 9 شهور وتعقد جلسات الاولمبياد العلمي على منصة يقين العلمية وعلى برنامج الزوم ويشارك فيه طلبة الدراسات الاولية والماجستير والدكتوراه في جميع الجامعات العربية كالعراق ومصر وسوريا ولبنان وليبيا والجزائر وغيرها

المشاركة في مهرجان الكيمياء كلجنة تحضيرية والمقام في جامعة الكوفة/ كلية التربية للبنات في 16/2/2026

المشاركة في مؤتمر الكيمياء والمقام في جامعة الكوفة/ كلية التربية للبنات في 05/06/2026

المشاركة ببحث في مؤتمر طلبة الدراسات العليا السنوي الثاني بعنوان تحضير بعض البوليمرات شبكية التداخل الهلامية بطريقة بلمرة الاكسدة والاختزال واستخدامها لازالة الصبغات ومعالجة المياه

المركز الثاني في دورة المركبات النانوية وطرق تحضيرها 2/1/2023

المشاركة بجهاز مصنع في معرض الابتكارات العلمية 2022 بعنوان انتاج بوليمرات لتثبيت الترب والكثبان الرملية ومكافحة التصحر