Polymers: Microstructural Features and Properties

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Questions and Answers

Which property does the isomeric state affect in the case of butane?

  • Viscosity
  • Boiling point (correct)
  • Density
  • Melting point

What is the initiator example given for the chemistry of polymers?

  • Hydrochloric acid
  • Benzoyl peroxide (correct)
  • Acetic acid
  • Ethanol

What does Mn stand for in the context of molecular weight calculation?

  • Total weight of polymer
  • Molar mass
  • Mass of a mole of chains (correct)
  • Total number of molecules

What does % crystallinity refer to in polymers?

<p>Percentage of material that is crystalline (C)</p>
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What type of polymer involves large blocks of A alternating with large blocks of B?

<p>Alternating block polymer (B)</p>
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What are the basic microstructural features of polymers?

<p>Crystallinity and molecular weight distribution (D)</p>
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How are polymer properties affected by molecular weight?

<p>Higher molecular weight leads to decreased flexibility (B)</p>
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What do polymeric crystals accommodate within the polymer chain?

<p>Packing of the polymer chains in an ordered manner (A)</p>
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What is the fundamental composition of most polymers?

<p>Carbon and hydrogen (C)</p>
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What phenomenon describes hydrocarbon compounds with the same composition but different atomic arrangements?

<p>Isomerism (D)</p>
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