C11 - Polymerisation Flashcards
polymers
a substance made from very large molecules
- made up of many repeating parts
monomer
small reactive molecules
-react together in repeating sequences to form polymers
ethene
smallest unsaturated hydrocarbon
-used in polythene
polythene use
plastic bags
bottles
cling film
poly(propene) use
rope
carpet
tougher plastic
forming polymers
alkene’s double carbon bond opens up
-thousands of molecule attac
addition polymerisation atom economy
100%
-as only one product is made
examples of products made from condensation polymerisation
polyester
nylon
nylon
strong
lightweight
condensation polymerisation
-makes 2 products
polymer and small molecule
condensation polymerisation small molecule
H20
HCL
Addition polymerisation
addition polymer
condensation polymerisation
condensation polymer + small molecule
Polyester
-1 alcohol monomer
-1 carboxylic acid monomer
General formula for polyester
diol + dicarboxylic acid = polyester + water
di in dicarboxylic acid
means 2 -COOH groups
nylon’s small molecule
HCL
condensation polymerisation monomers
-2 diff monomers (OH and COOH)
-2 same functional groups (2 -OH and 2 -COOH)
glucose formula
C6H12O6
carbohydrates formula
Cx (H2O)y
monosaccharide
monomers for polysaccharides
eg of monosaccharide
glucose
-one sugar unit
eg of polysaccharides
starch
cellulose
cellulose chain configuration
-straight chains
-neatly stacked
-stronger inter molecular forces
starch chain configuration
branched chains
-more gaps than cellulose
glucose monomers = starch
starch polymers and water
glucose monomers = cellulose
cellulose polymers and water
starch use
plant’s energy stores
cellulose use
plant structure (cell wall)
monomers for Protein polymers
amino acids
amino acids
-20 variations
-2 functional groups
2 functional groups of amino acids
amine group
carboxylic acids
amine group
-NH2
glycine (amino acid)
links to form polypeptide molecule
peptide links
between amino acids to form proteins
deoxyribonucleic acid
- DNA
contains genetic code that determines amino acid sequence for proteins
DNA is which type of polymerisation
condensation polymerisation
-water = small molecule
monomer for DNA
nucleotides
DNA structure
double helix
2 long strands of polynucleotides
-held together by inter molecular forces
nucleotides are made from
-sugar (deoxyribose)
- phosphate
and base
4 types of bases for DNA
-A
-T
G
C
Dna pairs
always a and t
always g and c
DNA base T
thymine
DNA base A
adenine
DNA base G
Guanine
DNA base C
cytosine