Polymers And Amino Acids

Question 1

Additional polymer

Answer 1

Long chain made from many monomers and no product is formed

Question 2

Condensation polymer

Answer 2

In a condensation reaction 2 molecules join to form a larger molecule with a small molecule such as hcl or h2o being released

Question 3

Polyester

Answer 3

Alcohol + carboxylic acid react
Ester functional group is formed and water is made

Question 4

Need to know polyester

Answer 4

Terylene
Ethane-1-2-diol and benzene-1-4-dicarboxylic acid
Uses - carpets clothes

Question 5

Polyamides

Answer 5

When as amine and a carboxylic acid react - amide functional group formed

Question 6

Need to know polyamide
Nylon 6,6

Answer 6

1,6-diamino hexene and hexane-1,6-dicarboxylic acid
Uses - fibres in clothing

Question 7

Need to know example polyamide
Kevlar

Answer 7

Benzene-1,4-diamine and benzene-1,4- dicarboxylic acid
Uses- used in manufacture of body armour and crash helmets

Question 8

Additional polymers biodegradable

Answer 8

Have non polar c-c bonds cannot be hydrolysed
Burn or incinerated - environmental issues

Question 9

Condensation polymers biodegrade

Answer 9

Are biodegradable
Can be hydrolysed in acid/basic conditions

Question 10

Amino acids in neutral ph

Answer 10

Zwitterion
N gains a proton positive charge
Oh on carboxylic acid loses a proton so negative charge

Question 11

Amino acids in acidic and alkaline conditions.

Answer 11

In acidic conditions amine/base accepts a proton
In alkaline conditions carboxylic acid is deprotonated

Question 12

Enzymes and optical isomers

Answer 12

Specific to 1 isomers- stereospecific

Question 13

Anti cancer drugs

Answer 13

Cisplatin
Binds to dna in cancerous cells so dna cannot unwind
Can bind to dna in healthy cells - can be targeted straight to cancer cells
Unwanted side effects - can be given in minimal amounts
Replaces 2 chloride ligands with a nitrogen from 2 adjacent guanine bases