C11 - Polymers Flashcards
Whats one of the most important uses of crude oil?
making polymers
Polymers are made of…
many monomer molecules
Plastic are made of…
very large covalently bonded molecules called polymers
What is the reaction between alkene monomers to form a polymer called?
additional polymerisation
How does addition polymerisation work?
the double carbon-carbon covalent bond ‘opens up’ and is replaced by a single carbon-carbon bond, so thousands of molecules join together
Products of addition polymerisation?
the polymer-
the repeating unit in addition polymers has the same atoms as…
the monomer, due to the double bond ‘opening up’
Examples of condensation polymers?
nylon, polyester
Products of condensation polymerisation?
polymer + other small molecule (usually water or HCl)
Main differences between addition and condensation polymerisation?
- c. produces 2 products
- in c. usually 2 different monomers, with 2 of the same functional groups on each monomer, are used
What are polyesters made from?
the condensation polymerisation of diol and a dicarboxylic acid with H2O given off in the reaction
Glucose is a….
monosaccharide (made of 1 sugar unit)
Monosaccharides can also act as monomers to make…
polymers called polysaccharides
Glucose monomers –>
Glucose monomers –>
starch polymers + water
cellulose polymers + water
Proteins are also…
natural polymers
