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Polymer Basics: Nomenclature and Structure

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Polymer Basics: Nomenclature and Structure

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Questions and Answers

What process is involved in linking monomers together to form a polymer?

Addition reaction

Condensation

Biopolymerization

Polymerization (correct)

What type of polymer is synthesized by scientists?

Condensation polymers

Biopolymers

Addition polymers

Synthetic polymers (correct)

What type of polymer is prepared from alkenes through addition reactions?

Synthetic polymers

Condensation polymers

Addition polymers (correct)

Biopolymers

How are polymer formulas typically written?

By enclosing the repeating unit within brackets, followed by the letter n Signup and view all the answers

What is the name of the polymer commonly known as Teflon?

Polytetrafluoroethylene Signup and view all the answers

What is the term for polymers synthesized by cells?

Biopolymers Signup and view all the answers

What is the characteristic of polymer chains in crystalline regions?

Highly ordered Signup and view all the answers

What is the effect of substituents or branches on the density of a polymer?

It reduces the density Signup and view all the answers

What is the characteristic of thermoplastic polymers?

They have both crystalline and amorphous regions Signup and view all the answers

What is the reason why thermosetting polymers cannot be remelted?

Because of their covalent cross-links Signup and view all the answers

What is the characteristic of elastomers?

They are flexible and can be stretched Signup and view all the answers

What happens to thermoplastic polymers when they are heated?

They become softer and can be molded Signup and view all the answers

What is the characteristic of a chain-growth process?

Monomers add one-by-one to the same end of a growing chain Signup and view all the answers

What type of polymerization is associated with step growth?

Condensation polymerization Signup and view all the answers

What is the name given to regions of a polymer where the chains are highly ordered with respect to one another?

Crystallites Signup and view all the answers

What is the primary force that holds individual chains of a polymer together?

Van der Waals forces Signup and view all the answers

What is the characteristic of a cross-linked polymer?

It has covalently bonded linking units between chains Signup and view all the answers

What is the term for polymers of intermediate length formed during step growth?

Oligomers Signup and view all the answers