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Вы можете ознакомиться и скачать презентацию на тему Polymers. Доклад-сообщение содержит 7 слайдов. Презентации для любого класса можно скачать бесплатно. Если материал и наш сайт презентаций Mypresentation Вам понравились – поделитесь им с друзьями с помощью социальных кнопок и добавьте в закладки в своем браузере.

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polymers by Adrian Mirza

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What is a polymer? A polymer is a large molecule, or macromolecule, composed of many repeated subunits. Because of their broad range of properties, both synthetic and natural polymers play an essential and ubiquitous role in everyday life.

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Term The term "polymer" derives from the ancient Greek word πολύς (polus, meaning "many, much") and μέρος (meros, meaning "parts").The term was coined in 1833 by Jöns Jacob Berzelius.

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Polymerization Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers.

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Science Polymers are studied in the fields of biophysics and macromolecular science, and polymer science (which includes polymer chemistry and polymer physics).

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Types of Polymers are two types: - Natural polymeric materials such as shellac, amber, wool, silk and natural rubber have been used for centuries. - Synthetic polymers that includes synthetic rubber, phenol formaldehyde resin (or Bakelite), polyethylene, polypropylene, po-lyacrylonitrile, PVB, silicone, and many more.