7 questions
The repeating unit of a polymer is shown.
Which monomer or pair of monomers could be used to make this polymer?
ClOC(CH2)4NH2 only
ClOC(CH2)4COCl only
ClOC(CH2)4COCl and H2N(CH2)6NH2
ClOC(CH2)6COCl and H2N(CH2)4NH2
The structure of part of a polyester chain is shown.
Which statement correctly explains why plastics made from this polyester only soften at high temperatures?
Hydrogen bonds and van der Waals’ forces exist between polyester chains.
Permanent dipole-dipole forces and van der Waals’ forces exist between polyester chains.
The carbon-carbon bonds in the chain are strong.
The carbon-oxygen bonds in the chain are strong.
Which compound can form a polymer without needing another reagent?
HOCH2CH2OH
HOOCCH2CH2COOH
HOCH2CH2COCl
ClCH2CH2COOH
Which polymer is least likely to be biodegraded after several years in a landfill site?
Kevlar
Nylon
Polythene
Terylene
Which compound can polymerise by reaction with itself?
NH2CH2CH2NH2
CH3CH2CONH2
HOOCCH2COOH
NH2CH2COCl
This question is about the following reaction scheme which shows the preparation of polymer P.
Polymer P is formed in a two-step reaction from N. The first stage is a neutralisation reaction. The volume, in cm3, of a 0.20 mol dm−3 solution of H2NCH2CH2NH2 required to neutralise 6.8 × 10−3 mol of the acid N is
17
34
68
136
Terylene is made by reacting benzene-1,4-dicarboxylic acid and ethane-1,2-diol.
Terylene is
an addition polymer.
a polyamide.
a polyester.
a nylon.