Browsing by Author "SEHAR HUSSAIN"

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    Preparation of biodegradable polymer
    (UMT, Lhr, 2018) SEHAR HUSSAIN
    The grafting of starch with different monomers like acrylic acid, methyl methacrylate and acrylonitrile was carried out with the free radical polymerization method. Thermal disintegration of potassium per sulphate caused the generation of free radicals at 70oC. The efficient grafting was proceeded by optimizing different parameters through many experiments such as amount of starch, quantity of monomers and temperature, one gram of starch and 6 ml of the monomers. Then carbon nanocomposites of these grafted polymers were prepared by adding 0.05 g of carbon nanoparticles during the course of reaction. The thin films prepared from these carbon nanocomposite were subjected to characterization through SEM, FTIR, tensile strength and biodegradation tests. SEM, FTIR and tensile strength results revealed fruitful information regarding the properties of these materials, while biodegradability was found to be 27.5% in 60 days. In this way grafted polymers with acrylic acid, methyl methacrylate, acrylonitrile, styrene and ethyl acrylate were obtained, characterized by SEM, FTIR and tensile strength techniques.