3 publications
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The Improvement of Polyvinyl Chloride Synthesis Using Different ApproachesBy Chukwuemeka Peter Ukpaka
Abstract: Polyvinyl chloride (PVC) is produced by the polymerization of the vinyl chloride monomer either by direct chlorination of olefins or by addition of hydrogen chloride to acetylene. The polymerization conditions are: heat, peroxides or oxidizing agents with basic structure as -CH2CHCl.CHCl-CH2.CHCl-. Polyvinyl chloride is a thermoplastic and its plasticity can be increased by incorporating ‘plasticizers’ of relatively low molecular weight organic materials during molding or extrusion. PVC has high hardness …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 2, 2020 · pp. 48–52 Read article →
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Overview on the Synthesis and Characteristics of PolystyreneBy Chukwuemeka Peter Ukpaka
Abstract: Polystyrene, a synthetic aromatic polymer, is one of the most wide spread polymers in the world. The monomer is styrene (vinylbenzene)- a petroleum based liquid hydrocarbon. Polystyrene can be solid or foamed. It was first discovered by a German apothecary Edmon Simon as far back as in 1839 from the resin of Turkish sweet gum trees. Polystyrene is formed by a polymerization method known as chain growth. Physically, it is …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 2, 2020 · pp. 26–30 Read article →
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Overview on the Thermal Properties, Geometric Structure and Recycling Process of Thermoplastic Materials.By Chukwuemeka Peter Ukpaka
Abstract: This study is aim to discuss the thermal properties, geometric structure and recycling process of thermoplastic materials. Also, recycling is one of the most important actions currently available to reduce the negative impact on the environment and represent one of the most dynamic areas in plastics industry today. Thermal properties, geometric structure and recycling process of thermoplastic materials deals with the properties of thermoplastics which includes: it may melt before …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 20–24 Read article →