Transcription of Objectives Polymers - National Council of …
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Objectives Polymers - National Council of …
Do you think that daily life would have been easier andcolourful without the discovery and varied applicationsof Polymers ? The use of Polymers in the manufactureof plastic buckets, cups and saucers, children s toys,packaging bags, synthetic clothing materials, automobiletyres, gears and seals, electrical insulating materials andmachine parts has completely revolutionised the dailylife as well as the industrial scenario. Indeed, thepolymers are the backbone of four major industries , elastomers, fibres and paints and word polymer is coined from two Greek words:poly means many and mer means unit or part. Theterm polymer is defined as very large molecules havinghigh molecular mass (103-107u). These are also referredto as macromolecules, which are formed by joining ofrepeating structural units on a large scale. The repeatingstructural units are derived from some simple andreactive molecules known as monomers and are linkedto each other by covalent bonds.
427 Polymers C:\Chemistry-12\Unit-15.pmd 28.02.07 Polymers can also be classified on the basis of mode of polymerisation into two sub groups.
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