School of Systems and Technology (SST)

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One of the best in Pakistan, consisting Moreover about two dozen faculty members have doctoral degrees.

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Browsing School of Systems and Technology (SST) by Subject "Acrylonitrile"

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    Synthesis and characterization of gelatin grafted biodegradable plastic using acrylonitrile and vinyl acetate
    (UNIVERSITY OF MANAGEMENT AND TECHNOLOGY, 2015) Wajad Ulfat
    The backbone of gelatin was grafted with the monomers of vinyl acetate and acrylonitrile. This grafted copolymer was obtained by the employing of free radical polymerization technique with potassium per sulfate which acted as initiator in the reaction. The stirring and heating of reaction was constant at 80 oC. The polymer was characterized by the use of FTIR, TGA and DSC. FTIR proved the grafting of monomers on the backbone of the gelatin. TGA-DSC analyzed the degradation and melting of the copolymer and nanocomposite polymer. The nanocomposite polymer was prepared with the incorporation of suitable quantity of Nickel doped nanoparticles. Soil burial method was used for the study of biodegradation of this polymer and its test range is 60 days. The degradation study of prepared samples W-1 and W-2 was shown to degradation results 29.9 and 11.05 percent respectively. At the beginning of the test was observed that weight of the copolymer (W-1) was increased due to the absorption of moisture from the soil. But after 20 days the weight of polymer was decreased constantly. The W-1 sample showed the high degradation rate. The nanocomposite polymer W-2 sample showed the resistance against the biodegradation. Nanocomposite polymers were also less moisture absorber. Results showed that the grafting was a unique technique which induced the biodegradation that was not present in the synthetic polymers. The nanoparticles imparted the resistance against the microbes; therefore these nanocomposite polymers are best for the packing of food.
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    Synthesis and characterization of gelatin grafted biodegradable plastic using acrylonitrile and vinyl acetate
    (UNIVERSITY OF MANAGEMENT AND TECHNOLOGY, 2015) Wajad Ulfat
    The backbone of gelatin was grafted with the monomers of vinyl acetate and acrylonitrile. This grafted copolymer was obtained by the employing of free radical polymerization technique with potassium per sulfate which acted as initiator in the reaction. The stirring and heating of reaction was constant at 80 oC. The polymer was characterized by the use of FTIR, TGA and DSC. FTIR proved the grafting of monomers on the backbone of the gelatin. TGA-DSC analyzed the degradation and melting of the copolymer and nanocomposite polymer. The nanocomposite polymer was prepared with the incorporation of suitable quantity of Nickel doped nanoparticles. Soil burial method was used for the study of biodegradation of this polymer and its test range is 60 days. The degradation study of prepared samples W-1 and W-2 was shown to degradation results 29.9 and 11.05 percent respectively. At the beginning of the test was observed that weight of the copolymer (W-1) was increased due to the absorption of moisture from the soil. But after 20 days the weight of polymer was decreased constantly. The W-1 sample showed the high degradation rate. The nanocomposite polymer W-2 sample showed the resistance against the biodegradation. Nanocomposite polymers were also less moisture absorber. Results showed that the grafting was a unique technique which induced the biodegradation that was not present in the synthetic polymers. The nanoparticles imparted the resistance against the microbes; therefore these nanocomposite polymers are best for the packing of food