Essential Organic Chemistry (3rd Edition)
Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 15.10, Problem 21P

(a)

Interpretation Introduction

Interpretation:

The structure of a short segment of PHB has to be drawn.

Concept Introduction:

Biodegradable polymers:

  • Polymers which can be ruined by microorganisms such as fungi, algae or bacteria.
  • Polyactide(PLA) is an example for biodegradable polymer.
  • Polyhydroxyalkanoates(PHAs)- step growth polymers of 3-hydroxycarboxylicacids.
  • An important PHA is PHB which is an example of a polymer of 3-hydroxybutyricacid

(b)

Interpretation Introduction

Interpretation:

The structure of a short segment of PHBV with alternating monomers has to be drawn.

Concept Introduction:

Biodegradable polymers:

  • Polymers which can be ruined by microorganisms such as fungi, algae or bacteria.
  • Polyactide(PLA) is an example for biodegradable polymer.
  • Polyhydroxyalkanoates(PHAs)- step growth polymers of 3-hydroxycarboxylicacids.
  • An important PHA is PHB which is an example of a polymer of 3-hydroxybutyricacid

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1. What is polymer? a. A large molecule made by twisted chains. b. A small molecule made of one atom. c. A large molecule made by human. d. A large molecule made by monomers.
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Of the benzene molecule it is true that: a. c-c bonds have different bond lengths since they are single and double bonds. b.carries out aromatic electrophilic addition reactions c. the actual structure is a resonance hybrid d.it can be correctly represented with an equilibrium between two resonant structures.
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