Студенттер мен жас ғалымдардың «фараби әлемі» атты халықаралық ғылыми конференциясы
SYNTHESIS OF POLYMER-METAL COMPLEX BASED ON COPPER(
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Сборник конф Фараби Әлемі 2023 химфак-печать
| SYNTHESIS OF POLYMER-METAL COMPLEX BASED ON COPPER(
II) NITRATE AND POLYVINYL ALCOHOL Dyussenkulova B.Zh., Maksotova K.S., Bakirova B.S.,Tasbolatova N.A. Supervisor: d.ch.sc., associate professor Akbayeva D.N. al-Farabi Kazakh National University balgyn111@gmail.com Complexes are high order compounds consisting of a central metal atom bonded with nonmetal atoms or group of atoms around it, called ligands. They poses a huge variety of application in fields of chemistry, chemical industry and technology, such as metallurgy, catalysis, etc. In this work the formation process of polymer-metal complex compound by mixing copper(II) nitrate with polyvinyl alcohol was investigated. Polyvinyl alcohol (PVA) is a water soluble synthetic plastic polymer, which has a property of self-cross-linking, biodegradability, biocompatibility and does not have a negative environmental effect, that makes it eco-friendly. Copper nitrate is a a blue crystalline inorganic substance, that refers to salts of copper and nitric acid. It easily absorbs moisture from the air and dissolves in water.It is an ideal reagent due to its commercial availability and stability. The composition of PVA-Cu 2+ complex was determined by conductometric and pH-metric titration. According to the results from conductometric studies, it can be argued that the complexation process is accompanied by an increase in the electrical conductivity of the system at the ratios PVA:Cu 2+ =1:1 mol:mol. Data obtained from pH-metric titration shows that the optimal molar ratio of the reacting components is PVA/Cu 2+ = 1/1 mol/mol. It means that one central copper ion bonds with one mono-link of polymer ligand.Then the complex compound films were analysed by isomolar series methods (UV-Vis). Obtained PVA-Cu 2+ complex compound will be applied for synthesis of copper nanoparticles with use of polyvinyl alcohol (PVA) as a stabiliser and reducing agent. «Фараби Әлемі» атты студенттер мен жас ғалымдардың халықаралық конференциясы 134 жүктеу/скачать 2,6 Mb. Достарыңызбен бөлісу:
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