Introduction IntroductionIntroductionIntroduction IntroductionIntroduction of of PolymersPolymersPolymers Polymers Polymers
Polymer - The word ‘polymer’ is the Greek word : poly means many and mer means unit or parts, A Polymer is a large molecule that comprises repeating structural units joined by the covalent bonds.
Monomer – The small molecule or repeating unit or the building block in the structure of polymer is called monomer.
To be a monomer , the substance unit should have a functionality of at least two , some compounds have two functionality other have double or triple bonds in the molecule .
Polymerization it is chemical reaction in which two or more than two molecules of one or more than one substance combine together to form a molecule of high molecular weight.
Degree of Polymerization – Number of monomer or repeating unit(n) in the polymer chain is called degree of polymerization (DP)
Degree of polymerization (DP) is used to calculate the average molecular weight of polymer.
Average molecular weight of polymer= DP X Weight of repeating unit.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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