3.12 Polymerisation

Question 1

What is condensation polymerisation?

Answer 1

Condensation polymerisation takes place when two monomers react and small molecule, often water or hydrogen chloride is eliminated.

Question 2

What are esters formed from, and what are polyesters formed from (+ what is the small molecule that is formed?)

Answer 2

Esters are formed on reaction between carboxylic acids and alcohols. Polyesters (+H2O) are formed when dicarboxylic acids react with diols

Question 3

What are amides formed from, and what are polyamides formed from (+ what is the small molecule that is formed?)

Answer 3

Amides are formed on reaction between carboxylic acids and an amine. Polyamides (+H2O) are formed when dicarboxylic acids react with diaminoalkanes.

Question 4

What monomers is Kevlar made from?

Answer 4

Benzene-1,4-diamine and Benzene-1,4-dicarboxylic acid

Question 5

Is Kevlar a polyester or polyamide?

Answer 5

A polyamide

Question 5

Is Kevlar a polyester or polyamide?

Answer 5

A polyamide

Question 6

Which tend to be more biodegradable, addition or condensation polymers?

Answer 6

Condensation polymers

Question 7

Why are addition polymers less biodegradable?

Answer 7

Because they are made up (normally) of strong, C-C bonds, and are non polar, meaning they are at less threat of nucleophilic attack.

Question 8

What are the alternatives to sending polymers to landfill?

Answer 8

Recycling, reusing, or incineration.