Exam 26: Synthetic Polymers

Provide the structure of isotactic polypropylene.

Provide the structures of the monomers needed to synthesize the polymer below.

Provide the structures of the monomers from which nylon 6,6 is formed.

Why is chain branching less common in anionic polymerization than in cationic polymerization?

Provide the structure of syndiotactic polystyrene.

Which type of polymer is not typically formed via step-growth polymerization?

How does vulcanization of rubber alter its structure and properties?

What type of polymer uses a diisocyanate as one of its monomer components?

Classify neoprene, shown below, as either being an addition polymer or condensation polymer. Justify your answer.

A polymer with a high degree of crystallinity is usually ________ than a similar polymer with a lower degree of crystallinity.

Provide the structure of isotactic polystyrene.

Natural rubber is a:

Draw the structure of the polymer produced in the following reaction.

Provide a mechanism to show how H₂C=C(CH₃)₂ is polymerized using BF₃ as the initiator.

Provide the structure of syndiotactic polypropylene.

Provide the structure of the monomer from which poly(vinyl chloride) is formed.

Provide the structures of the monomers from which Dacron is formed.

A substance that is added to a polymer to lower its Tg is called a ________.

Show the reaction which occurs when benzoyl peroxide is heated.

Provide the structure of the monomer from which poly(acrylonitrile) is formed.