Provide the structure of poly(propylene oxide) that is formed by ...

[frankwu]

Provide the structure of poly(propylene oxide) that is formed by base catalyzed ring opening polymerization of the propylene oxide shown below.
 
   

Question 2

Provide the structure of the poly(lactic acid) that is formed by base catalyzed ring opening polymerization of the dilactone shown below.
 
   

Question 3

Provide the structure of polyacetylene that is formed by ring-opening metathesis polymerization of 1,3,5,7-cyclooctatetraene.
 
   

Question 4

Provide the mechanism for backbiting of a radical chain end of polyethylene, which results in a butyl side chain on the polymer backbone.

Question 5

Provide the mechanism whereby two radical chain ends undergo dispropotionation to give two dead chain ends.
 
   

Question 6

Provide the structure of azoisobutyronitrile, AIBN, and show the mechanism whereby it undergoes thermal decomposition to give two radicals and a molecule of N₂.

Question 7

Provide the structure of poly(methyl methacrylate).

Question 8

Provide the structure of polystyrene.

Question 9

Provide the structure of poly(butylene adipamide).

Question 10

Provide the structure of poly(ethylene succinate).

Question 11

Classify each polymer below as step-growth or chain-growth. Place the appropriate term in the blank provided.
  _________________
   

Question 12

Classify each polymer below as step-growth or chain-growth. Place the appropriate term in the blank provided.
  _________________
   

Question 13

Classify each polymer below as step-growth or chain-growth. Place the appropriate term in the blank provided.
  _________________
 

Question 14

Nitroethylene is expected to be _______ reactive than ethylene toward anionic polymerization.
   

   

Question 15

Nitroethylene is expected to be _______ reactive than ethylene toward cationic polymerization.
   

   

Question 16

Consider the structure given below which might be found in a protein.
   

   
  Answer the following questions by filling in the blank with the appropriate word or term.
  This polymer would be classified as a poly______.

Question 17

Consider the structure given below which might be found in a protein.
   

   
  Answer the following questions by filling in the blank with the appropriate word or term.
  The number of types of monomers in this structure is _______.

Question 18

Consider the structure shown below.
   
 

This is an example of
   a. a polyurethane
   b. a polyester
   c. a polyamide
   d. a polycarbonate

Question 19

The name of the polymer formed by the molecule shown below is _________________.
   

Question 20

Consider the polymeric structure below for amylose (a type of starch).
 
   
   The structure for the monomer is given below.

   
  a.
  True
   
  b.
  False

Question 21

Consider the following two structures.
   
  The following represents the repeating unit of the polymer formed by these two substances.
   
   
  a.
  True
   
  b.
  False

Question 22

A polymer has the repeating unit drawn below:
   
 

   The two monomers used to make the polymer are shown below.

   
   
  a.
  True
   
  b.
  False

Question 23

The following is an example of a polyurethane.
   

[heyhey123]

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step-growth

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chain-growth

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chain-growth

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more

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less

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amide

Answer to Question 17

3
three

Answer to Question 18

b

Answer to Question 19

polypropylene

Answer to Question 20

a


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a

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b

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b

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a

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a

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c

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a

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b

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a

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c

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b

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a

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a

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b

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b

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b

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2-dideoxynucleoside triphosphate
   
  b.
  3

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a

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d

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a

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2'-deoxyadenosine monophosphate
2-deoxyadenosine monophosphate
2'-deoxyadenosine 2'-monophosphate
2-deoxyadenosine 2-monophosphate

Answer to Question 54

thymine

Answer to Question 55

b

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a

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a

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b

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b

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b

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b

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a

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b

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a

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a

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a

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Answer to Question 68

[frankwu]

Great answer, keep it coming

[bulacsom]

Excellent