Step-growth polymers differ from chain-growth polymers in that ...

[bio_gurl]

Step-growth polymers differ from chain-growth polymers in that they
  A)
  are more water soluble.
  B)
  are generally prepared from difunctional monomers.
  C)
  have more highly branched structures.
  D)
  are thermosetting whereas chain-growth polymers are thermoplastic.
  E)
  are formed by 1,4- instead of 1,2-addition.

Question 2

Nylon 6 is a polymer of caprolactam. What is the structure of caprolactam?
  A)
   
 
  D)
   
 
  B)
   
 
  E)
   
 
  C)
   
 

Question 3

What determines the density of a polyurethane foam?
  A)
  the amount of ammonia gas released
  B)
  the amount of carbon dioxide released
  C)
  the amount of oxygen absorbed
  D)
  the solubility of the reactants
  E)
  the amount of nitrogen absorbed

[Ptupou85]

Answer to Question 1

b

Answer to Question 2

d

Answer to Question 3

b

[bio_gurl]

Excellent

[kilada]

Great answer, keep it coming