Discussion of a master’s thesis
The Department of Chemistry at the College of Education for Pure Sciences/ Karbala University was discussed a master’s thesis entitled (the synthesis of a new nano-copolymer and its application in removing pollutants), by the student (Amir Salem Muhammad). The thesis was discussed under the heading of the respected Dean of the College of Education for Pure Sciences, Prof. Hamida Idan Salman, and under the supervision of each of the Associate Dean for Scientific Affairs, Prof. Mohamed Nazem Bahgat, and the Head of the Chemistry Department, Prof. Dr. Sajid Hassan Kazar, on Thursday, 17/6/2021, in the discussion room of the Chemistry Department. The thesis aimed to synthesize a new nanopolymer by esterification process, characterizing this new nanopolymer using techniques (FT-IR, 1HNMR, 13C NMR, AFM and XRD), particle size measurement of this new nanopolymer by (AFM, XRD) techniques, this new nanopolymer was used to remove pollutants by adsorption process with three dyes (malachite green, reactive red, and dispersed blue).
The thesis’s conclusion indicated that the nanopolymer produced by the reaction of phthalic anhydride and pentaerythritol was distinguished by techniques (FT-IR, 1H-NMR, 13CNMR, AFM, and XRD). The AFM results showed that the average size of the polymer nanoparticle is 97.23 nm, while the XRD was 97.19 nm. This proves that the prepared polymer is nanoscale. The XRD pattern indicates that the presence of solid aromatic rings, stemming from phthalic acid, leads to more rigid structures, which should be more prone to crystallization than a fully aliphatic polymer, Carbonyl groups since there is an excess of carbonyl groups concerning alcohol groups. A greater amount of phthalic acid indicated that the molecular motions, due to the stiffness of the aromatic rings, should facilitate the packing of the polymer chains into crystal lattices. The discussion resulted in several recommendations, including:
Calculating the amount of adsorption with other dyes using different polymers with other processes, using polymers of nanoparticles as drug delivery systems, using other processes to remove water, air, and land pollutants, and using other types of hydroxyl compounds to provide a greater number of contact points with carboxylic compounds. The student received an excellence grade.
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