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Original Article
The Effect of H2SO4 Concentration on Corrosion of Kirkuk’s Oil and Gas Pipelines with Studying Corrosion Reaction Rates Kinetically
The Effect of H2SO4 Concentration on Corrosion of Kirkuk’s Oil and Gas Pipelines with Studying Corrosion Reaction Rates Kinetically

Ahmed Hamdi Hattab; Shakhawan Beebany; Ako Sabir Kaki

Volume 7, Issue 4 , April 2023, Pages 257-267

https://doi.org/10.22034/chemm.2023.376042.1632

Abstract
  Acidic corrosions for oil and natural gas pipelines have been investigated by studying the effect of sulfuric acid (H2SO4) on carbon steel surface sample. Three different concentrations ...  Read More
Original Article
Synthesis and Antimicrobial Activity of New 4-Fromyl Pyrazole Derivatives Drived from Galloyl Hydrazide
Synthesis and Antimicrobial Activity of New 4-Fromyl Pyrazole Derivatives Drived from Galloyl Hydrazide

Fayyadh Abed Nashaan; Muna Sameer Al-Rawi

Volume 7, Issue 4 , April 2023, Pages 267-276

https://doi.org/10.22034/chemm.2023.366582.1619

Abstract
  The new compounds of 3-substituted phenyl-5-(3,4,5-trihydroxyphenyl)-4H-pyrazole-4-carbaldehyde [III]a-e were synthesized by reacting various hydrazones derived from galloyl hydrazide ...  Read More
Original Article
Analytical, Optical, and Thermal Study of Sulphonated Polystyrene Prepared from Some Industrial Polystyrene Waste
Analytical, Optical, and Thermal Study of Sulphonated Polystyrene Prepared from Some Industrial Polystyrene Waste

Maiada Adnan

Volume 7, Issue 4 , April 2023, Pages 277-287

https://doi.org/10.22034/chemm.2023.374210.1631

Abstract
  In this study sulfonated polystyrene (SPS) was prepared from some industrial waste polystyrene (PS). The degree of sulfonated and molecular weight were determined. An analytical study ...  Read More
Original Article
M-Polynomials and Topological Indices of Porphyrin-Cored Dendrimers
M-Polynomials and Topological Indices of Porphyrin-Cored Dendrimers

Mehri Hasani; Masoud Ghods

Volume 7, Issue 4 , April 2023, Pages 288-306

https://doi.org/10.22034/chemm.2023.370497.1626

Abstract
  Porphyrin-cored dendrimers of the Gn generation with n ⩾ 1 are of four types PCD-I, PCD-II, PCD-III, and PCD-IV. In this article, several necessary chemical structures of porphyrin-cored ...  Read More
Original Article
Photodetector Biased on ZnO Nanoparticles/Poly-TPD Organic Material
Photodetector Biased on ZnO Nanoparticles/Poly-TPD Organic Material

Zahraa Hassan Ali; Lamees A. Abdullah

Volume 7, Issue 4 , April 2023, Pages 307-313

https://doi.org/10.22034/chemm.2023.379131.1636

Abstract
  In the present study, a photodetector was prepared by depositing PEDO TPSS and TPD polymer on porous silicon (PSi) substrates using spin coating technique. The response time of the ...  Read More
Original Article
A Novel Design for Gas Sensor of Zinc Oxide Nanostructure Prepared by Hydrothermal Annealing Technique
A Novel Design for Gas Sensor of Zinc Oxide Nanostructure Prepared by Hydrothermal Annealing Technique

Ali E. Hashim; Fuad T. Ibrahim

Volume 7, Issue 4 , April 2023, Pages 314-324

https://doi.org/10.22034/chemm.2023.377977.1634

Abstract
  Zinc oxide (ZnO) nanoparticles were prepared under different conditions using hydrothermal technique. The effect of reaction time on the size and shape of the nanoparticles was studied. ...  Read More