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Questions and Answers
Who coined the term 'polymer'?
Who coined the term 'polymer'?
- Hermann Staudinger
- IUPAC
- Polymer Science Community
- Jöns Jacob Berzelius (correct)
What are macromolecules in a polymer composed of?
What are macromolecules in a polymer composed of?
- Random subunits
- Alternating subunits
- Many repeating subunits (correct)
- Single repeating subunit
What unique physical properties are produced by the large molecular mass of polymers?
What unique physical properties are produced by the large molecular mass of polymers?
- Transparency, low density, low strength
- Hardness, low ductility, low malleability
- Toughness, high elasticity, viscoelasticity (correct)
- Brittleness, low elasticity, rigidity
In which year was the modern concept of polymers as covalently bonded macromolecular structures proposed?
In which year was the modern concept of polymers as covalently bonded macromolecular structures proposed?
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What fields study polymers?
What fields study polymers?
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What is the function of a lubricant?
What is the function of a lubricant?
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What is the historical origin of lubricants?
What is the historical origin of lubricants?
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What accelerated the growth of lubrication in the Industrial Revolution?
What accelerated the growth of lubrication in the Industrial Revolution?
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In addition to reducing friction, what are other uses of lubricants mentioned in the text?
In addition to reducing friction, what are other uses of lubricants mentioned in the text?
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What is the property of reducing friction known as?
What is the property of reducing friction known as?
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