Polymer Science Quiz

Polymer crystallinity refers to the degree of structural order in a polymer. Factors affecting Tg (glass transition temperature) include chain flexibility, molecular weight, and presence of plasticizers.

A polymer is a material composed of very large molecules formed by joining together thousands of small molecular units by chemical bonds.

The molecular weight of polymers can be measured by average molecular weight (weight average and number average) and Polydispersity Index.

<p>Some commercially important polymers include Polyethylene, Polyvinyl acetate, Polydimethyl Siloxane, Epoxy resins, and Polylactic acid (PLA).</p> Signup and view all the answers

<p>Conducting polymers are materials that can conduct electricity. They conduct through the movement of charge carriers (electrons or electron holes) along the polymer chain.</p> Signup and view all the answers

<p>The pre-requisites for studying polymers include knowledge of polymer, monomer, polymerization, degree of polymerisation, classification of polymers, and mechanism of polymerisation.</p> Signup and view all the answers

<p>The molecular weight of polymers refers to the average molecular weight (weight average and number average) of a polymer, polydispersity index, and numerical problems related to molecular weight.</p> Signup and view all the answers

<p>Polymer crystallinity is related to the glass transition temperature (Tg) and the factors affecting it include viscoelasticity.</p> Signup and view all the answers

<p>The text mentions polyethylene, polyvinyl acetate, polydimethyl siloxane, epoxy resins, and polylactic acid (PLA) as commercially important polymers.</p> Signup and view all the answers

<p>The mechanism of conduction in conducting polymers and examples and applications are mentioned in the text.</p> Signup and view all the answers

<p>A polymer is a material composed of very large molecules formed by joining together thousands of small molecular units by chemical bonds. Due to their large size, they are also called macromolecules.</p> Signup and view all the answers

<p>The molecular weight of polymers refers to the average molecular weight (weight average and number average) of a polymer, along with the Polydispersity Index.</p> Signup and view all the answers

<p>Polymer crystallinity refers to the arrangement of polymer chains in a regular, repeating pattern. The factors affecting the glass transition temperature (Tg) include molecular weight, chain flexibility, and the presence of additives.</p> Signup and view all the answers

<p>Conducting polymers are materials capable of conducting electricity. The mechanism of conduction in polymers involves the movement of charges along the polymer chains. Examples and applications of conducting polymers exist in various electronic and sensor devices.</p> Signup and view all the answers

<p>Some commercially important polymers include Polyethylene, Polyvinyl acetate, Polydimethyl Siloxane, Epoxy resins, and Polylactic acid (PLA). These polymers have wide-ranging industrial applications.</p> Signup and view all the answers