DNA/AMINES/POLYMERS/AMINO ACIDS Flashcards
What are the 2 fuctionsl groups of amino acids
NH2 and COOH
Are amino acids chiral? Why?
Yes
1 carbon has 4 different groups
Synthesis of amino acids
NUCLEOPHILIC ADDITION
Define addition polymer
Long chain formed from msny monomers and no other product is formed
Condensation polymer
2 molecule joined to form a larger one with a small molecule as H2O and HCl being released
Uses of terylene
Carpet
Clothing
How to make polyesters
Dicarboxylic acid + diold
Diols + dicyl chloride
How to make polyamides
Diamine + diclyl chloride
Dicarboxylic acid+ diamines
Uses of nylon
Used as fibres in clothing
Uses of kevlar
Used in manufucturing body armour & carsh helmets
Are addition polymers biodegradable? Why?
Not biodegradable
Have non-polar C-C bonds can’t be hydrolysed
Are condensation polymer biodegradable? Why?
Yes
Can be hydrolysed under basic or acidic condition as delta +ve on C of polar bond C-O can be attacked by nucleophile
Why does zwitterions formed
[H+]=[OH-]
How are tertiary structure held
Held by
hydrogen bond
Ionic bonds
Disulfide bonds (s-s)
Why is secondary structure formed
Electron deficient H attracts lone pair on Oxygen