Synthetic Addition Polymers

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Questions and Answers

Which of the following properties distinguishes low-density polyethylene (LDPE) from high-density polyethylene (HDPE)?

LDPE is commonly used for containers, while HDPE is used for toys.
LDPE is linear, while HDPE is branched.
LDPE is rigid and strong, while HDPE is flexible and durable.
LDPE is branched, resulting in a more flexible structure, while HDPE is linear, providing greater rigidity. (correct)

What type of polymerization reaction is used to produce polypropylene?

Esterification
Addition polymerization (correct)
Condensation polymerization
Hydrolysis

Which of the following polymers is most suitable for producing non-stick pans?

Polytetrafluoroethylene (Teflon™) (correct)
Polystyrene (PS)
Polyvinylacetate (PVA)
Polyvinylchloride (PVC)

Which of the following polymers is commonly used in the production of water bottles due to its strength and recyclability?

Polyethylene terephthalate (PET) (D) Signup and view all the answers

Which polymer is primarily utilized in electrical industry applications?

Phenol formaldehyde resin (Bakelite) (C) Signup and view all the answers

What property makes neoprene suitable for waterproof equipment?

Chemical structure that is impermeable to water (C) Signup and view all the answers

Which of the following polymers is specifically designed for applications requiring high impact resistance, such as bulletproof glass?

Polycarbonate (C) Signup and view all the answers

Which of the following best describes the relationship between the structure of HDPE and its typical applications?

Linear structure contributes to its strength, making it suitable for milk containers. (A) Signup and view all the answers

Why is the arrangement of polymer chains important in determining the properties of polyethylene?

It determines the melting point and flexibility of the polymer. (A) Signup and view all the answers

Which factor primarily determines whether a polymer is classified as addition or condensation?

Whether or not small molecules are released during the polymerization. (A) Signup and view all the answers

Which of the following monomers is used in the production of Polystyrene (PS)?

Styrene (A) Signup and view all the answers

Which of the following monomers is used in the production of Polyvinylchloride (PVC)?

Vinyl chloride (B) Signup and view all the answers

What type of force is responsible for the different properties observed between low-density and high-density polyethylene?

Van der Waals forces (C) Signup and view all the answers

Compared to addition polymers, what is a key difference in the formation of condensation polymers?

Condensation polymers result in the release of water or another small molecule. (C) Signup and view all the answers

What characteristics of polyamides, such as nylon, make them suitable for textile fibers?

Their high tensile strength and elasticity. (D) Signup and view all the answers

Examine the structures of the provided polymers. Which of the following polymer types contain ester linkages in their main chain?

Polyethylene terephthalate (PET) (A) Signup and view all the answers

What is one advantage of using polypropylene over polyethylene in certain applications?

Polypropylene has better resistance to stress cracking. (D) Signup and view all the answers

How does the presence of the chloroprene monomer influence the properties of Neoprene?

It enhances the polymer's resistance to solvents and oils. (A) Signup and view all the answers

Considering the chemical structures, why is Polyvinyl acetate (PVA) suitable for use in paints and glues?

Its polar side groups allow it to form strong adhesive bonds with other polar materials. (D) Signup and view all the answers

How does the recycling symbol on a plastic product relate to the type of polymer used?

The recycling symbol indicates the type of polymer used, which aids in sorting during recycling. (D) Signup and view all the answers

Flashcards

Low Density Polyethylene (LDPE)

A polymer with branched chains, resulting in lower density, flexibility and durability. Commonly used in grocery bags and toys.

High Density Polyethylene (HDPE)

A polymer with linear chains, resulting in higher density, rigidity and strength. Commonly used in containers for milk, detergents and shampoos.