Polymer chemistry Flashcards
What molecules can form condensation polymers?
Molecules that contain COOH and OH groups or COOH and NH2 groups
What is eliminated during during the condensation polymerisation/
Water or HCl
What are the two types of condensation polymer considered?
Polyesters and polyamides
What is a polyester between?
A diol and a dicarboxylic acid or between a molecule that contains an OH and COOH
What are the two components of PET
Ethane-1,2-diol and Benzene -1,4- dicarboxylic acid (aka terephthalic acid)
Draw the reaction to form PET
on page
What is nylon the condensation reaction between
Hexane-1,6-diammine and Hexandioic acid / Hexandioyl chloride
Draw the reaction to form nylon
on page
What bonds are there between polyamides
H bonds
What bonds are there between polyesters?
Permanent dipole-dipole forces of attraction
Why are condensation polymers used more often than addition polymers?
Condensation polymers are used more often as they are biodegradable and and can hydrolysed. Addition polymers will remain in the environment for thousands of years