29 - Polymers Flashcards
What are polyesters formed from?
Diols and dicarboxylic acids
What are polyamides formed from?
Dicarboxylic acids and diamines
What is a polypeptide formed from?
Amino acids
Give one example of a polyester.
Terylene
Give 2 examples of polyamides.
Nylon 6,6
Kevlar
What are the monomers of Terylene?
Benzene-1,4-dicarboxylic acid
Ethane-1-2-diol
What are the monomers of Nylon 6,6?
Hexanedioic acid
Hexane-1,6-diamine
What are the monomers of Kevlar?
Benzene-1,4-diamine
Benzene-1,4-dicarboxylic acid
What is Terylene used for?
Clothing, tire cord
What is Nylon used for?
Clothing, tire cords
What is Kevlar used for?
Bulletproof vests, tennis racquets
How can polyesters and polyamides be broken down?
Hydrolysis
Give three methods for the disposal of polymers.
Landfill
Incineration
Recycling
Give a safety precaution to filling a burette. (1)
Fill below eye level
Give two practical steps needed before recording an initial burette reading. (2)
Remove funnel
Ensure no air bubbles
