Directly related questions
- 20N.3.sl.TZ0.3b(i): Thermoplastic composites are increasingly replacing thermosets. Suggest one advantage of...
- 20N.3.sl.TZ0.3b(i): Thermoplastic composites are increasingly replacing thermosets. Suggest one advantage of...
- 20N.3.sl.TZ0.b(i): Thermoplastic composites are increasingly replacing thermosets. Suggest one advantage of...
- 20N.3.sl.TZ0.3c: Explain why phthalates are replaced by other plasticizers in the production of plastics.
- 20N.3.sl.TZ0.3c: Explain why phthalates are replaced by other plasticizers in the production of plastics.
- 20N.3.sl.TZ0.c: Explain why phthalates are replaced by other plasticizers in the production of plastics.
- 20N.3.sl.TZ0.3b(ii): Explain how thermoplastics, such as polyvinylchloride, PVC, can be made more flexible by the...
- 20N.3.sl.TZ0.3b(ii): Explain how thermoplastics, such as polyvinylchloride, PVC, can be made more flexible by the...
- 20N.3.sl.TZ0.b(ii): Explain how thermoplastics, such as polyvinylchloride, PVC, can be made more flexible by the...
- 20N.3.hl.TZ0.3b(ii): Explain how thermoplastics, such as polyvinylchloride, PVC, can be made more flexible by the...
- 20N.3.hl.TZ0.3b(ii): Explain how thermoplastics, such as polyvinylchloride, PVC, can be made more flexible by the...
- 20N.3.hl.TZ0.b(ii): Explain how thermoplastics, such as polyvinylchloride, PVC, can be made more flexible by the...
-
18M.3.sl.TZ1.4a:
Both of these are thermoplastic polymers. Outline what this term means.
-
18M.3.sl.TZ1.4a:
Both of these are thermoplastic polymers. Outline what this term means.
-
18M.3.sl.TZ1.a:
Both of these are thermoplastic polymers. Outline what this term means.
-
18M.3.sl.TZ1.4b.i:
Compare and contrast the structures of HDPE and LDPE.
-
18M.3.sl.TZ1.4b.i:
Compare and contrast the structures of HDPE and LDPE.
-
18M.3.sl.TZ1.b.i:
Compare and contrast the structures of HDPE and LDPE.
-
18N.3.hl.TZ0.2b:
Structures of poly(methyl acrylate), PMA, and Bakelite® are shown.
Suggest, giving reasons, which is the thermoplastic polymer and which is the thermosetting polymer.
-
18N.3.hl.TZ0.2b:
Structures of poly(methyl acrylate), PMA, and Bakelite® are shown.
Suggest, giving reasons, which is the thermoplastic polymer and which is the thermosetting polymer.
-
18N.3.hl.TZ0.b:
Structures of poly(methyl acrylate), PMA, and Bakelite® are shown.
Suggest, giving reasons, which is the thermoplastic polymer and which is the thermosetting polymer.
-
19M.3.hl.TZ1.4b:
Suggest, giving a reason, how elastomers used for the tyre tread can increase the traction between the tyre and the road.
-
19M.3.hl.TZ1.4b:
Suggest, giving a reason, how elastomers used for the tyre tread can increase the traction between the tyre and the road.
-
19M.3.hl.TZ1.b:
Suggest, giving a reason, how elastomers used for the tyre tread can increase the traction between the tyre and the road.
- 19N.3.sl.TZ0.4c: Polypropene is a thermoplastic. Outline what is meant by thermoplastic.
- 19N.3.sl.TZ0.4c: Polypropene is a thermoplastic. Outline what is meant by thermoplastic.
- 19N.3.sl.TZ0.c: Polypropene is a thermoplastic. Outline what is meant by thermoplastic.
- 19N.3.hl.TZ0.5b: State and explain why plasticizers are added to polymers.
- 19N.3.hl.TZ0.5b: State and explain why plasticizers are added to polymers.
- 19N.3.hl.TZ0.b: State and explain why plasticizers are added to polymers.
-
17N.3.sl.TZ0.7b.i:
Describe how the structures of LDPE and HDPE affect one mechanical property of the plastics.
-
17N.3.sl.TZ0.7b.i:
Describe how the structures of LDPE and HDPE affect one mechanical property of the plastics.
-
17N.3.sl.TZ0.b.i:
Describe how the structures of LDPE and HDPE affect one mechanical property of the plastics.
-
18M.3.hl.TZ1.4c.ii:
Deduce, giving a reason, whether the atom economy of a condensation polymerization, such as this, would be greater or less than an addition polymerization, such as the formation of HDPE.
-
18M.3.hl.TZ1.4c.ii:
Deduce, giving a reason, whether the atom economy of a condensation polymerization, such as this, would be greater or less than an addition polymerization, such as the formation of HDPE.
-
18M.3.hl.TZ1.c.ii:
Deduce, giving a reason, whether the atom economy of a condensation polymerization, such as this, would be greater or less than an addition polymerization, such as the formation of HDPE.
-
18M.3.sl.TZ1.4b.ii:
State one way in which a physical property of HDPE, other than density, differs from that of LDPE as a result of this structural difference.
-
18M.3.sl.TZ1.4b.ii:
State one way in which a physical property of HDPE, other than density, differs from that of LDPE as a result of this structural difference.
-
18M.3.sl.TZ1.b.ii:
State one way in which a physical property of HDPE, other than density, differs from that of LDPE as a result of this structural difference.
-
18M.3.sl.TZ2.4a:
Sketch four repeating units of the polymer to show atactic and isotactic polypropene.
-
18M.3.sl.TZ2.4a:
Sketch four repeating units of the polymer to show atactic and isotactic polypropene.
-
18M.3.sl.TZ2.a:
Sketch four repeating units of the polymer to show atactic and isotactic polypropene.
-
18N.3.sl.TZ0.2b.i:
Structures of poly(methyl acrylate), PMA, and Bakelite® are shown.
Suggest, giving reasons, which is the thermoplastic polymer and which is the thermosetting polymer.
-
18N.3.sl.TZ0.2b.i:
Structures of poly(methyl acrylate), PMA, and Bakelite® are shown.
Suggest, giving reasons, which is the thermoplastic polymer and which is the thermosetting polymer.
-
18N.3.sl.TZ0.b.i:
Structures of poly(methyl acrylate), PMA, and Bakelite® are shown.
Suggest, giving reasons, which is the thermoplastic polymer and which is the thermosetting polymer.
-
19M.3.hl.TZ2.5a:
Draw a section of isotactic polychloroethene (polyvinylchloride, PVC) showing all the atoms and all the bonds of four monomer units.
-
19M.3.hl.TZ2.5a:
Draw a section of isotactic polychloroethene (polyvinylchloride, PVC) showing all the atoms and all the bonds of four monomer units.
-
19M.3.hl.TZ2.a:
Draw a section of isotactic polychloroethene (polyvinylchloride, PVC) showing all the atoms and all the bonds of four monomer units.
-
19M.3.hl.TZ2.5c:
Explain how plasticizers affect the properties of plastics.
-
19M.3.hl.TZ2.5c:
Explain how plasticizers affect the properties of plastics.
-
19M.3.hl.TZ2.c:
Explain how plasticizers affect the properties of plastics.
-
19M.3.sl.TZ1.4b:
Suggest, giving a reason, how elastomers used for the tyre tread can increase the traction between the tyre and the road.
-
19M.3.sl.TZ1.4b:
Suggest, giving a reason, how elastomers used for the tyre tread can increase the traction between the tyre and the road.
-
19M.3.sl.TZ1.b:
Suggest, giving a reason, how elastomers used for the tyre tread can increase the traction between the tyre and the road.
-
19M.3.sl.TZ2.5a:
Draw a section of isotactic polychloroethene (polyvinylchloride, PVC) showing all the atoms and all the bonds of four monomer units.
-
19M.3.sl.TZ2.5a:
Draw a section of isotactic polychloroethene (polyvinylchloride, PVC) showing all the atoms and all the bonds of four monomer units.
-
19M.3.sl.TZ2.a:
Draw a section of isotactic polychloroethene (polyvinylchloride, PVC) showing all the atoms and all the bonds of four monomer units.
-
19M.3.sl.TZ2.5d:
Explain how plasticizers affect the properties of plastics.
-
19M.3.sl.TZ2.5d:
Explain how plasticizers affect the properties of plastics.
-
19M.3.sl.TZ2.d:
Explain how plasticizers affect the properties of plastics.
-
19N.3.sl.TZ0.4a:
Draw a section of an isotactic polypropene polymer chain containing four repeating units.
-
19N.3.sl.TZ0.4a:
Draw a section of an isotactic polypropene polymer chain containing four repeating units.
-
19N.3.sl.TZ0.a:
Draw a section of an isotactic polypropene polymer chain containing four repeating units.
- 19N.3.sl.TZ0.4b: Predict, with a reason, whether isotactic or atactic polypropene has the higher melting point.
- 19N.3.sl.TZ0.4b: Predict, with a reason, whether isotactic or atactic polypropene has the higher melting point.
- 19N.3.sl.TZ0.b: Predict, with a reason, whether isotactic or atactic polypropene has the higher melting point.
- 19N.3.sl.TZ0.4d: Discuss why the recycling of plastics is an energy intensive process.
- 19N.3.sl.TZ0.4d: Discuss why the recycling of plastics is an energy intensive process.
- 19N.3.sl.TZ0.d: Discuss why the recycling of plastics is an energy intensive process.
- 20N.3.hl.TZ0.3b(i): Thermoplastic composites are increasingly replacing thermosets. Suggest one advantage of...
- 20N.3.hl.TZ0.3b(i): Thermoplastic composites are increasingly replacing thermosets. Suggest one advantage of...
- 20N.3.hl.TZ0.b(i): Thermoplastic composites are increasingly replacing thermosets. Suggest one advantage of...
- 20N.3.hl.TZ0.3b(iii): Explain why phthalates are replaced by other plasticizers in the production of plastics.
- 20N.3.hl.TZ0.3b(iii): Explain why phthalates are replaced by other plasticizers in the production of plastics.
- 20N.3.hl.TZ0.b(iii): Explain why phthalates are replaced by other plasticizers in the production of plastics.
- 23M.2.HL.TZ1.3ai: Outline the meaning of homologous series.
- 23M.2.SL.TZ1.3ai: Outline the meaning of homologous series.
- 23M.2.HL.TZ1.3ai: Outline the meaning of homologous series.
- 23M.2.HL.TZ1.i: Outline the meaning of homologous series.
- 23M.2.SL.TZ1.3ai: Outline the meaning of homologous series.
- 23M.2.SL.TZ1.i: Outline the meaning of homologous series.
- 23M.2.HL.TZ2.7a: Identify the type of reaction.
- 23M.2.HL.TZ2.7a: Identify the type of reaction.
- 23M.2.HL.TZ2.a: Identify the type of reaction.