School of Systems and Technology (SST)

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https://escholar.umt.edu.pk/handle/123456789/207
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 "Acrylic acid"

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    Grafting of starch with acrylic acid for the preparation of biodegradable polymers
    (University of Management and Technology, 2015) Humayun Irshad
    The graft polymerization of starch with monomer like acrylic acid was carried out using free radical polymerization mechanism. To generate free radicals, ammonium per sulphate was thermally disintegrated by heating it in aqueous solution at the temperature of 80 degrees celsius. Different experimental methods were performed to investigate the effect of different parameters like (temperature, amount of starch and the ratio of monomer acrylic acid on grafting. The temperature of 90 degrees celsius was found to be optimum for good grafting. The amount of starch was taken as 0.75g in experimentally designed method. The best grafted product was obtained by adding 3ml monomer acrylic acid in 0.75g starch. For the preparation of nanocomposite of starch grafted acrylic acid 0.02g of Ni nanoparticles were incorporated in reaction kettle at 15 minutes prior to completion of the reaction time. SEM, TGA/DSC, FTIR techniques were used to characterize the grafted polymer and its nanocomposite. To investigate the biodegradability soil burial method was applied. The biodegradability of 23.21% in 60 days was shown by starch grafted acrylic acid polymer while its nanocomposite showed 16.19% biodegradability in same period of time.
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    Synthesis and characterization Of gelatin grafted biodegradable copolymer using acrylic acid and vinyl acetate
    (UNIVERSITY OF MANAGEMENT AND TECHNOLOGY, 2015) Muhammad Amjad
    From the beginning of life polymers are with us and are used as a building block of life. All living things in the world such as plants, animals, microorganisms and even though human being have the polymer as a basic constituent. In past, we have been familiar with only natural polymers. These polymers are mostly used in the form of textile fibers. But at the end of 19thcentury the natural polymers were modified into synthetic polymers. In modern era (1968), John Wesley Hyatt synthesized the first synthetic polymer cellulose nitrate from the natural raw material. After the synthesis of first synthetic polymer, change the ideas of scientists for the development of society. They use the synthetic polymers directly or indirectly to synthesis the different products. In previous few decades, with the development of science and technology, the amount of synthetic polymers increased all over the world each yeari. But due to these synthetic polymers in USA and other countries 20 to 25% volume of total solid municipalwasteincreasedii.Today, we can say that all comforts and luxury in this world is possible due to the synthetic polymers.