Browsing by Author "Muhammad Amjad"

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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.