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C29.1 Condensation polymers AQA A2 Chemistry C29 Polymerisation Kerboodle Answers: Page No. 201
1 a The number of carbon atoms in each monomer
b 1, 10-diaminodecane NH2(CH2)10NH2
2 They also have CONH linkages.
3 Propane-1,3,-diol
4
(a) Amide
(b) Ester
5
Practice Questions: Page No. 202-203
(a) CH3CH=CHCH3
Addition polymerisation
(b) CH3CH(OH)CH(OH)CH3 or with no brackets
Butane–2,3–diol
2,3–dimethylbutanedioic acid
Condensation polymerisation
(c) NaOH or HCl or Na2CO3
2
Polyamide or nylon (2,4) Condensation
3 (a) (i)
(ii) Addition
(b)
(i) C3H4O2
(ii)
(iii) Can be hydrolysed or can react with nucleophiles.
4 (a)
(b) CH3CH=CHCH2CH3
(c)
5 (a
(i) 2-methylbut-1-ene
(ii)
(b)
Condensation
(Poly)peptide OR (poly)amide
6 (i) Hexane-1,6-diamine
(ii)
(b) (i)
(ii)
7 (a)
Polyalkenes are inert since they have a structure like a saturated alkane and are therefore difficult to react (unless there is UV light to break the bonds in the molecules)
(b) Polyesters and polyamides can have the peptide link hydrolysed in acidic conditions or by enzyme action, etc.
(c) Not using up natural resources to make the raw materials and stops build-up of landfill sites with polymers in them.
8
a(i) Monomer A is diol. Name compound A.(1 mark)
(ii) What type ol compound is monomer B?(1 mark)
(b) Monomer A and monomer B can react together to form a useful new substance named compound C.
(i) Draw a repeat unit of the new substance compound C.(1 mark)
(ii) Circle the ester linkage in compound C.(1 mark)
(iii) Name the non-organic product of this reaction.(1 mark)
(iv) State the type of reaction that has taken place.(1 mark)
(v) Suggest why a lab coat made from compound C may be damaged if concentrated sodium hydroxide was accidentally spilt on it.
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