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CHE 105/110 Introduction to Chemistry - Exercises and Answers

Polymers

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QUESTION ANSWER

1.

Explain the relationship between a monomer and a polymer.

1.

A polymer is many monomers bonded together.

3.

Draw the polymer made from this monomer.

Structural formula of 1-butene

3.

Structural formula of poly-butane (polymer formed from several (n) butene molecules.

5.

What is the difference between an addition polymer and a condensation polymer?

5.

In an addition polymer, no small molecule is given off as a product, whereas in a condensation polymer, small parts of each monomer come off as a small molecule.

7.

List three properties of polymers that vary widely with composition.

7.

solubility in H2O and other solvents, melting point, flammability, color, hardness, transparency, film thickness, wetability, surface friction, moldability, and particle size (answers will vary)

9.

Draw the silicone made from this monomer.

Structural formula of 1,2 dimethyl-silane.

9.

 

Structural formula of poly-methylsylane (polymer formed from several (n) sylane molecules.

11.

Explain how starch is a polymer.

11.

Starch is composed of many glucose monomer units.

13.

Explain how protein is a polymer.

13.

Proteins are polymers of amino acids, which act as the monomers.

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